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1da177e4 LT |
1 | /* |
2 | * Authors: | |
3 | * Copyright 2001, 2002 by Robert Olsson <robert.olsson@its.uu.se> | |
4 | * Uppsala University and | |
5 | * Swedish University of Agricultural Sciences | |
6 | * | |
7 | * Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> | |
8 | * Ben Greear <greearb@candelatech.com> | |
96de0e25 | 9 | * Jens Låås <jens.laas@data.slu.se> |
1da177e4 LT |
10 | * |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License | |
13 | * as published by the Free Software Foundation; either version | |
14 | * 2 of the License, or (at your option) any later version. | |
15 | * | |
16 | * | |
17 | * A tool for loading the network with preconfigurated packets. | |
4ec93edb | 18 | * The tool is implemented as a linux module. Parameters are output |
1da177e4 LT |
19 | * device, delay (to hard_xmit), number of packets, and whether |
20 | * to use multiple SKBs or just the same one. | |
21 | * pktgen uses the installed interface's output routine. | |
22 | * | |
23 | * Additional hacking by: | |
24 | * | |
25 | * Jens.Laas@data.slu.se | |
26 | * Improved by ANK. 010120. | |
27 | * Improved by ANK even more. 010212. | |
28 | * MAC address typo fixed. 010417 --ro | |
29 | * Integrated. 020301 --DaveM | |
30 | * Added multiskb option 020301 --DaveM | |
31 | * Scaling of results. 020417--sigurdur@linpro.no | |
32 | * Significant re-work of the module: | |
33 | * * Convert to threaded model to more efficiently be able to transmit | |
34 | * and receive on multiple interfaces at once. | |
35 | * * Converted many counters to __u64 to allow longer runs. | |
36 | * * Allow configuration of ranges, like min/max IP address, MACs, | |
37 | * and UDP-ports, for both source and destination, and can | |
38 | * set to use a random distribution or sequentially walk the range. | |
39 | * * Can now change most values after starting. | |
40 | * * Place 12-byte packet in UDP payload with magic number, | |
41 | * sequence number, and timestamp. | |
42 | * * Add receiver code that detects dropped pkts, re-ordered pkts, and | |
43 | * latencies (with micro-second) precision. | |
44 | * * Add IOCTL interface to easily get counters & configuration. | |
45 | * --Ben Greear <greearb@candelatech.com> | |
46 | * | |
4ec93edb YH |
47 | * Renamed multiskb to clone_skb and cleaned up sending core for two distinct |
48 | * skb modes. A clone_skb=0 mode for Ben "ranges" work and a clone_skb != 0 | |
1da177e4 | 49 | * as a "fastpath" with a configurable number of clones after alloc's. |
4ec93edb YH |
50 | * clone_skb=0 means all packets are allocated this also means ranges time |
51 | * stamps etc can be used. clone_skb=100 means 1 malloc is followed by 100 | |
1da177e4 LT |
52 | * clones. |
53 | * | |
4ec93edb | 54 | * Also moved to /proc/net/pktgen/ |
1da177e4 LT |
55 | * --ro |
56 | * | |
57 | * Sept 10: Fixed threading/locking. Lots of bone-headed and more clever | |
58 | * mistakes. Also merged in DaveM's patch in the -pre6 patch. | |
59 | * --Ben Greear <greearb@candelatech.com> | |
60 | * | |
61 | * Integrated to 2.5.x 021029 --Lucio Maciel (luciomaciel@zipmail.com.br) | |
62 | * | |
4ec93edb | 63 | * |
1da177e4 LT |
64 | * 021124 Finished major redesign and rewrite for new functionality. |
65 | * See Documentation/networking/pktgen.txt for how to use this. | |
66 | * | |
67 | * The new operation: | |
4ec93edb YH |
68 | * For each CPU one thread/process is created at start. This process checks |
69 | * for running devices in the if_list and sends packets until count is 0 it | |
70 | * also the thread checks the thread->control which is used for inter-process | |
71 | * communication. controlling process "posts" operations to the threads this | |
1da177e4 LT |
72 | * way. The if_lock should be possible to remove when add/rem_device is merged |
73 | * into this too. | |
74 | * | |
4ec93edb YH |
75 | * By design there should only be *one* "controlling" process. In practice |
76 | * multiple write accesses gives unpredictable result. Understood by "write" | |
1da177e4 | 77 | * to /proc gives result code thats should be read be the "writer". |
b4099fab | 78 | * For practical use this should be no problem. |
1da177e4 | 79 | * |
4ec93edb YH |
80 | * Note when adding devices to a specific CPU there good idea to also assign |
81 | * /proc/irq/XX/smp_affinity so TX-interrupts gets bound to the same CPU. | |
1da177e4 LT |
82 | * --ro |
83 | * | |
4ec93edb | 84 | * Fix refcount off by one if first packet fails, potential null deref, |
1da177e4 LT |
85 | * memleak 030710- KJP |
86 | * | |
87 | * First "ranges" functionality for ipv6 030726 --ro | |
88 | * | |
89 | * Included flow support. 030802 ANK. | |
90 | * | |
91 | * Fixed unaligned access on IA-64 Grant Grundler <grundler@parisc-linux.org> | |
4ec93edb | 92 | * |
1da177e4 LT |
93 | * Remove if fix from added Harald Welte <laforge@netfilter.org> 040419 |
94 | * ia64 compilation fix from Aron Griffis <aron@hp.com> 040604 | |
95 | * | |
4ec93edb | 96 | * New xmit() return, do_div and misc clean up by Stephen Hemminger |
1da177e4 LT |
97 | * <shemminger@osdl.org> 040923 |
98 | * | |
4ec93edb | 99 | * Randy Dunlap fixed u64 printk compiler waring |
1da177e4 LT |
100 | * |
101 | * Remove FCS from BW calculation. Lennert Buytenhek <buytenh@wantstofly.org> | |
102 | * New time handling. Lennert Buytenhek <buytenh@wantstofly.org> 041213 | |
103 | * | |
4ec93edb | 104 | * Corrections from Nikolai Malykh (nmalykh@bilim.com) |
1da177e4 LT |
105 | * Removed unused flags F_SET_SRCMAC & F_SET_SRCIP 041230 |
106 | * | |
4ec93edb | 107 | * interruptible_sleep_on_timeout() replaced Nishanth Aravamudan <nacc@us.ibm.com> |
1da177e4 | 108 | * 050103 |
ca6549af SW |
109 | * |
110 | * MPLS support by Steven Whitehouse <steve@chygwyn.com> | |
111 | * | |
34954ddc FF |
112 | * 802.1Q/Q-in-Q support by Francesco Fondelli (FF) <francesco.fondelli@gmail.com> |
113 | * | |
ce5d0b47 AR |
114 | * Fixed src_mac command to set source mac of packet to value specified in |
115 | * command by Adit Ranadive <adit.262@gmail.com> | |
116 | * | |
1da177e4 LT |
117 | */ |
118 | #include <linux/sys.h> | |
119 | #include <linux/types.h> | |
120 | #include <linux/module.h> | |
121 | #include <linux/moduleparam.h> | |
122 | #include <linux/kernel.h> | |
222fa076 | 123 | #include <linux/mutex.h> |
1da177e4 LT |
124 | #include <linux/sched.h> |
125 | #include <linux/slab.h> | |
126 | #include <linux/vmalloc.h> | |
1da177e4 LT |
127 | #include <linux/unistd.h> |
128 | #include <linux/string.h> | |
129 | #include <linux/ptrace.h> | |
130 | #include <linux/errno.h> | |
131 | #include <linux/ioport.h> | |
132 | #include <linux/interrupt.h> | |
4fc268d2 | 133 | #include <linux/capability.h> |
2bc481cf | 134 | #include <linux/hrtimer.h> |
09fe3ef4 | 135 | #include <linux/freezer.h> |
1da177e4 LT |
136 | #include <linux/delay.h> |
137 | #include <linux/timer.h> | |
cdcdbe0b | 138 | #include <linux/list.h> |
1da177e4 LT |
139 | #include <linux/init.h> |
140 | #include <linux/skbuff.h> | |
141 | #include <linux/netdevice.h> | |
142 | #include <linux/inet.h> | |
143 | #include <linux/inetdevice.h> | |
144 | #include <linux/rtnetlink.h> | |
145 | #include <linux/if_arp.h> | |
34954ddc | 146 | #include <linux/if_vlan.h> |
1da177e4 LT |
147 | #include <linux/in.h> |
148 | #include <linux/ip.h> | |
149 | #include <linux/ipv6.h> | |
150 | #include <linux/udp.h> | |
151 | #include <linux/proc_fs.h> | |
d50a6b56 | 152 | #include <linux/seq_file.h> |
1da177e4 | 153 | #include <linux/wait.h> |
f404e9a6 | 154 | #include <linux/etherdevice.h> |
ee74baa7 | 155 | #include <linux/kthread.h> |
457c4cbc | 156 | #include <net/net_namespace.h> |
1da177e4 LT |
157 | #include <net/checksum.h> |
158 | #include <net/ipv6.h> | |
159 | #include <net/addrconf.h> | |
a553e4a6 JHS |
160 | #ifdef CONFIG_XFRM |
161 | #include <net/xfrm.h> | |
162 | #endif | |
1da177e4 LT |
163 | #include <asm/byteorder.h> |
164 | #include <linux/rcupdate.h> | |
1977f032 | 165 | #include <linux/bitops.h> |
63adc6fb SH |
166 | #include <linux/io.h> |
167 | #include <linux/timex.h> | |
168 | #include <linux/uaccess.h> | |
1da177e4 | 169 | #include <asm/dma.h> |
222f1806 | 170 | #include <asm/div64.h> /* do_div */ |
1da177e4 | 171 | |
c3d2f52d | 172 | #define VERSION "2.72" |
1da177e4 | 173 | #define IP_NAME_SZ 32 |
ca6549af | 174 | #define MAX_MPLS_LABELS 16 /* This is the max label stack depth */ |
d5f1ce9a | 175 | #define MPLS_STACK_BOTTOM htonl(0x00000100) |
1da177e4 LT |
176 | |
177 | /* Device flag bits */ | |
222f1806 LC |
178 | #define F_IPSRC_RND (1<<0) /* IP-Src Random */ |
179 | #define F_IPDST_RND (1<<1) /* IP-Dst Random */ | |
180 | #define F_UDPSRC_RND (1<<2) /* UDP-Src Random */ | |
181 | #define F_UDPDST_RND (1<<3) /* UDP-Dst Random */ | |
182 | #define F_MACSRC_RND (1<<4) /* MAC-Src Random */ | |
183 | #define F_MACDST_RND (1<<5) /* MAC-Dst Random */ | |
184 | #define F_TXSIZE_RND (1<<6) /* Transmit size is random */ | |
185 | #define F_IPV6 (1<<7) /* Interface in IPV6 Mode */ | |
ca6549af | 186 | #define F_MPLS_RND (1<<8) /* Random MPLS labels */ |
34954ddc FF |
187 | #define F_VID_RND (1<<9) /* Random VLAN ID */ |
188 | #define F_SVID_RND (1<<10) /* Random SVLAN ID */ | |
007a531b | 189 | #define F_FLOW_SEQ (1<<11) /* Sequential flows */ |
a553e4a6 | 190 | #define F_IPSEC_ON (1<<12) /* ipsec on for flows */ |
45b270f8 | 191 | #define F_QUEUE_MAP_RND (1<<13) /* queue map Random */ |
e6fce5b9 | 192 | #define F_QUEUE_MAP_CPU (1<<14) /* queue map mirrors smp_processor_id() */ |
1da177e4 LT |
193 | |
194 | /* Thread control flag bits */ | |
222f1806 LC |
195 | #define T_TERMINATE (1<<0) |
196 | #define T_STOP (1<<1) /* Stop run */ | |
197 | #define T_RUN (1<<2) /* Start run */ | |
198 | #define T_REMDEVALL (1<<3) /* Remove all devs */ | |
199 | #define T_REMDEV (1<<4) /* Remove one dev */ | |
1da177e4 | 200 | |
1da177e4 LT |
201 | /* If lock -- can be removed after some work */ |
202 | #define if_lock(t) spin_lock(&(t->if_lock)); | |
203 | #define if_unlock(t) spin_unlock(&(t->if_lock)); | |
204 | ||
205 | /* Used to help with determining the pkts on receive */ | |
206 | #define PKTGEN_MAGIC 0xbe9be955 | |
d50a6b56 SH |
207 | #define PG_PROC_DIR "pktgen" |
208 | #define PGCTRL "pgctrl" | |
63adc6fb | 209 | static struct proc_dir_entry *pg_proc_dir; |
1da177e4 LT |
210 | |
211 | #define MAX_CFLOWS 65536 | |
212 | ||
34954ddc FF |
213 | #define VLAN_TAG_SIZE(x) ((x)->vlan_id == 0xffff ? 0 : 4) |
214 | #define SVLAN_TAG_SIZE(x) ((x)->svlan_id == 0xffff ? 0 : 4) | |
215 | ||
222f1806 | 216 | struct flow_state { |
252e3346 | 217 | __be32 cur_daddr; |
222f1806 | 218 | int count; |
a553e4a6 JHS |
219 | #ifdef CONFIG_XFRM |
220 | struct xfrm_state *x; | |
221 | #endif | |
007a531b | 222 | __u32 flags; |
1da177e4 LT |
223 | }; |
224 | ||
007a531b JHS |
225 | /* flow flag bits */ |
226 | #define F_INIT (1<<0) /* flow has been initialized */ | |
227 | ||
1da177e4 | 228 | struct pktgen_dev { |
1da177e4 LT |
229 | /* |
230 | * Try to keep frequent/infrequent used vars. separated. | |
231 | */ | |
39df232f SH |
232 | struct proc_dir_entry *entry; /* proc file */ |
233 | struct pktgen_thread *pg_thread;/* the owner */ | |
63adc6fb | 234 | struct list_head list; /* chaining in the thread's run-queue */ |
1da177e4 | 235 | |
63adc6fb | 236 | int running; /* if false, the test will stop */ |
1da177e4 | 237 | |
222f1806 LC |
238 | /* If min != max, then we will either do a linear iteration, or |
239 | * we will do a random selection from within the range. | |
240 | */ | |
241 | __u32 flags; | |
95ed63f7 AK |
242 | int removal_mark; /* non-zero => the device is marked for |
243 | * removal by worker thread */ | |
1da177e4 | 244 | |
222f1806 LC |
245 | int min_pkt_size; /* = ETH_ZLEN; */ |
246 | int max_pkt_size; /* = ETH_ZLEN; */ | |
16dab72f | 247 | int pkt_overhead; /* overhead for MPLS, VLANs, IPSEC etc */ |
222f1806 | 248 | int nfrags; |
fd29cf72 SH |
249 | u64 delay; /* nano-seconds */ |
250 | ||
222f1806 LC |
251 | __u64 count; /* Default No packets to send */ |
252 | __u64 sofar; /* How many pkts we've sent so far */ | |
253 | __u64 tx_bytes; /* How many bytes we've transmitted */ | |
63adc6fb SH |
254 | __u64 errors; /* Errors when trying to transmit, |
255 | pkts will be re-sent */ | |
222f1806 LC |
256 | |
257 | /* runtime counters relating to clone_skb */ | |
222f1806 LC |
258 | |
259 | __u64 allocated_skbs; | |
260 | __u32 clone_count; | |
261 | int last_ok; /* Was last skb sent? | |
63adc6fb SH |
262 | * Or a failed transmit of some sort? |
263 | * This will keep sequence numbers in order | |
222f1806 | 264 | */ |
fd29cf72 SH |
265 | ktime_t next_tx; |
266 | ktime_t started_at; | |
267 | ktime_t stopped_at; | |
268 | u64 idle_acc; /* nano-seconds */ | |
269 | ||
222f1806 LC |
270 | __u32 seq_num; |
271 | ||
63adc6fb SH |
272 | int clone_skb; /* |
273 | * Use multiple SKBs during packet gen. | |
274 | * If this number is greater than 1, then | |
275 | * that many copies of the same packet will be | |
276 | * sent before a new packet is allocated. | |
277 | * If you want to send 1024 identical packets | |
278 | * before creating a new packet, | |
279 | * set clone_skb to 1024. | |
222f1806 LC |
280 | */ |
281 | ||
282 | char dst_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
283 | char dst_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
284 | char src_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
285 | char src_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
286 | ||
287 | struct in6_addr in6_saddr; | |
288 | struct in6_addr in6_daddr; | |
289 | struct in6_addr cur_in6_daddr; | |
290 | struct in6_addr cur_in6_saddr; | |
1da177e4 | 291 | /* For ranges */ |
222f1806 LC |
292 | struct in6_addr min_in6_daddr; |
293 | struct in6_addr max_in6_daddr; | |
294 | struct in6_addr min_in6_saddr; | |
295 | struct in6_addr max_in6_saddr; | |
296 | ||
297 | /* If we're doing ranges, random or incremental, then this | |
298 | * defines the min/max for those ranges. | |
299 | */ | |
252e3346 AV |
300 | __be32 saddr_min; /* inclusive, source IP address */ |
301 | __be32 saddr_max; /* exclusive, source IP address */ | |
302 | __be32 daddr_min; /* inclusive, dest IP address */ | |
303 | __be32 daddr_max; /* exclusive, dest IP address */ | |
222f1806 LC |
304 | |
305 | __u16 udp_src_min; /* inclusive, source UDP port */ | |
306 | __u16 udp_src_max; /* exclusive, source UDP port */ | |
307 | __u16 udp_dst_min; /* inclusive, dest UDP port */ | |
308 | __u16 udp_dst_max; /* exclusive, dest UDP port */ | |
309 | ||
1ca7768c | 310 | /* DSCP + ECN */ |
63adc6fb SH |
311 | __u8 tos; /* six MSB of (former) IPv4 TOS |
312 | are for dscp codepoint */ | |
313 | __u8 traffic_class; /* ditto for the (former) Traffic Class in IPv6 | |
314 | (see RFC 3260, sec. 4) */ | |
1ca7768c | 315 | |
ca6549af SW |
316 | /* MPLS */ |
317 | unsigned nr_labels; /* Depth of stack, 0 = no MPLS */ | |
318 | __be32 labels[MAX_MPLS_LABELS]; | |
319 | ||
34954ddc FF |
320 | /* VLAN/SVLAN (802.1Q/Q-in-Q) */ |
321 | __u8 vlan_p; | |
322 | __u8 vlan_cfi; | |
323 | __u16 vlan_id; /* 0xffff means no vlan tag */ | |
324 | ||
325 | __u8 svlan_p; | |
326 | __u8 svlan_cfi; | |
327 | __u16 svlan_id; /* 0xffff means no svlan tag */ | |
328 | ||
222f1806 LC |
329 | __u32 src_mac_count; /* How many MACs to iterate through */ |
330 | __u32 dst_mac_count; /* How many MACs to iterate through */ | |
331 | ||
332 | unsigned char dst_mac[ETH_ALEN]; | |
333 | unsigned char src_mac[ETH_ALEN]; | |
334 | ||
335 | __u32 cur_dst_mac_offset; | |
336 | __u32 cur_src_mac_offset; | |
252e3346 AV |
337 | __be32 cur_saddr; |
338 | __be32 cur_daddr; | |
222f1806 LC |
339 | __u16 cur_udp_dst; |
340 | __u16 cur_udp_src; | |
45b270f8 | 341 | __u16 cur_queue_map; |
222f1806 LC |
342 | __u32 cur_pkt_size; |
343 | ||
344 | __u8 hh[14]; | |
345 | /* = { | |
346 | 0x00, 0x80, 0xC8, 0x79, 0xB3, 0xCB, | |
347 | ||
348 | We fill in SRC address later | |
349 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
350 | 0x08, 0x00 | |
351 | }; | |
352 | */ | |
353 | __u16 pad; /* pad out the hh struct to an even 16 bytes */ | |
354 | ||
63adc6fb | 355 | struct sk_buff *skb; /* skb we are to transmit next, used for when we |
222f1806 LC |
356 | * are transmitting the same one multiple times |
357 | */ | |
63adc6fb SH |
358 | struct net_device *odev; /* The out-going device. |
359 | * Note that the device should have it's | |
360 | * pg_info pointer pointing back to this | |
361 | * device. | |
362 | * Set when the user specifies the out-going | |
363 | * device name (not when the inject is | |
364 | * started as it used to do.) | |
365 | */ | |
1da177e4 | 366 | struct flow_state *flows; |
222f1806 LC |
367 | unsigned cflows; /* Concurrent flows (config) */ |
368 | unsigned lflow; /* Flow length (config) */ | |
369 | unsigned nflows; /* accumulated flows (stats) */ | |
007a531b | 370 | unsigned curfl; /* current sequenced flow (state)*/ |
45b270f8 RO |
371 | |
372 | u16 queue_map_min; | |
373 | u16 queue_map_max; | |
374 | ||
a553e4a6 JHS |
375 | #ifdef CONFIG_XFRM |
376 | __u8 ipsmode; /* IPSEC mode (config) */ | |
377 | __u8 ipsproto; /* IPSEC type (config) */ | |
378 | #endif | |
39df232f | 379 | char result[512]; |
1da177e4 LT |
380 | }; |
381 | ||
382 | struct pktgen_hdr { | |
252e3346 AV |
383 | __be32 pgh_magic; |
384 | __be32 seq_num; | |
385 | __be32 tv_sec; | |
386 | __be32 tv_usec; | |
1da177e4 LT |
387 | }; |
388 | ||
389 | struct pktgen_thread { | |
63adc6fb | 390 | spinlock_t if_lock; /* for list of devices */ |
c26a8016 | 391 | struct list_head if_list; /* All device here */ |
cdcdbe0b | 392 | struct list_head th_list; |
ee74baa7 | 393 | struct task_struct *tsk; |
222f1806 | 394 | char result[512]; |
222f1806 | 395 | |
63adc6fb SH |
396 | /* Field for thread to receive "posted" events terminate, |
397 | stop ifs etc. */ | |
222f1806 LC |
398 | |
399 | u32 control; | |
1da177e4 LT |
400 | int cpu; |
401 | ||
222f1806 | 402 | wait_queue_head_t queue; |
d3ede327 | 403 | struct completion start_done; |
1da177e4 LT |
404 | }; |
405 | ||
406 | #define REMOVE 1 | |
407 | #define FIND 0 | |
408 | ||
fd29cf72 | 409 | static inline ktime_t ktime_now(void) |
1da177e4 | 410 | { |
fd29cf72 SH |
411 | struct timespec ts; |
412 | ktime_get_ts(&ts); | |
413 | ||
414 | return timespec_to_ktime(ts); | |
1da177e4 LT |
415 | } |
416 | ||
fd29cf72 SH |
417 | /* This works even if 32 bit because of careful byte order choice */ |
418 | static inline int ktime_lt(const ktime_t cmp1, const ktime_t cmp2) | |
1da177e4 | 419 | { |
fd29cf72 | 420 | return cmp1.tv64 < cmp2.tv64; |
1da177e4 LT |
421 | } |
422 | ||
c3d2f52d SH |
423 | static const char version[] = |
424 | "pktgen " VERSION ": Packet Generator for packet performance testing.\n"; | |
1da177e4 | 425 | |
222f1806 LC |
426 | static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *i); |
427 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname); | |
428 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, | |
429 | const char *ifname); | |
1da177e4 LT |
430 | static int pktgen_device_event(struct notifier_block *, unsigned long, void *); |
431 | static void pktgen_run_all_threads(void); | |
eb37b41c | 432 | static void pktgen_reset_all_threads(void); |
1da177e4 | 433 | static void pktgen_stop_all_threads_ifs(void); |
3bda06a3 | 434 | |
222f1806 | 435 | static void pktgen_stop(struct pktgen_thread *t); |
1da177e4 | 436 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev); |
39df232f | 437 | |
222f1806 LC |
438 | static unsigned int scan_ip6(const char *s, char ip[16]); |
439 | static unsigned int fmt_ip6(char *s, const char ip[16]); | |
1da177e4 LT |
440 | |
441 | /* Module parameters, defaults. */ | |
65c5b786 SH |
442 | static int pg_count_d __read_mostly = 1000; |
443 | static int pg_delay_d __read_mostly; | |
444 | static int pg_clone_skb_d __read_mostly; | |
445 | static int debug __read_mostly; | |
1da177e4 | 446 | |
222fa076 | 447 | static DEFINE_MUTEX(pktgen_thread_lock); |
cdcdbe0b | 448 | static LIST_HEAD(pktgen_threads); |
1da177e4 | 449 | |
1da177e4 LT |
450 | static struct notifier_block pktgen_notifier_block = { |
451 | .notifier_call = pktgen_device_event, | |
452 | }; | |
453 | ||
1da177e4 | 454 | /* |
4ec93edb | 455 | * /proc handling functions |
1da177e4 LT |
456 | * |
457 | */ | |
458 | ||
d50a6b56 | 459 | static int pgctrl_show(struct seq_file *seq, void *v) |
222f1806 | 460 | { |
c3d2f52d | 461 | seq_puts(seq, version); |
d50a6b56 | 462 | return 0; |
1da177e4 LT |
463 | } |
464 | ||
63adc6fb SH |
465 | static ssize_t pgctrl_write(struct file *file, const char __user *buf, |
466 | size_t count, loff_t *ppos) | |
1da177e4 | 467 | { |
1da177e4 | 468 | int err = 0; |
d50a6b56 | 469 | char data[128]; |
1da177e4 | 470 | |
222f1806 LC |
471 | if (!capable(CAP_NET_ADMIN)) { |
472 | err = -EPERM; | |
1da177e4 | 473 | goto out; |
222f1806 | 474 | } |
1da177e4 | 475 | |
d50a6b56 SH |
476 | if (count > sizeof(data)) |
477 | count = sizeof(data); | |
1da177e4 | 478 | |
1da177e4 | 479 | if (copy_from_user(data, buf, count)) { |
b4099fab | 480 | err = -EFAULT; |
d50a6b56 | 481 | goto out; |
222f1806 LC |
482 | } |
483 | data[count - 1] = 0; /* Make string */ | |
1da177e4 | 484 | |
222f1806 | 485 | if (!strcmp(data, "stop")) |
1da177e4 LT |
486 | pktgen_stop_all_threads_ifs(); |
487 | ||
222f1806 | 488 | else if (!strcmp(data, "start")) |
1da177e4 LT |
489 | pktgen_run_all_threads(); |
490 | ||
eb37b41c JB |
491 | else if (!strcmp(data, "reset")) |
492 | pktgen_reset_all_threads(); | |
493 | ||
222f1806 | 494 | else |
25a8b254 | 495 | printk(KERN_WARNING "pktgen: Unknown command: %s\n", data); |
1da177e4 LT |
496 | |
497 | err = count; | |
498 | ||
222f1806 LC |
499 | out: |
500 | return err; | |
1da177e4 LT |
501 | } |
502 | ||
d50a6b56 SH |
503 | static int pgctrl_open(struct inode *inode, struct file *file) |
504 | { | |
505 | return single_open(file, pgctrl_show, PDE(inode)->data); | |
506 | } | |
507 | ||
9a32144e | 508 | static const struct file_operations pktgen_fops = { |
222f1806 LC |
509 | .owner = THIS_MODULE, |
510 | .open = pgctrl_open, | |
511 | .read = seq_read, | |
512 | .llseek = seq_lseek, | |
513 | .write = pgctrl_write, | |
514 | .release = single_release, | |
d50a6b56 SH |
515 | }; |
516 | ||
517 | static int pktgen_if_show(struct seq_file *seq, void *v) | |
1da177e4 | 518 | { |
648fda74 | 519 | const struct pktgen_dev *pkt_dev = seq->private; |
fd29cf72 SH |
520 | ktime_t stopped; |
521 | u64 idle; | |
222f1806 LC |
522 | |
523 | seq_printf(seq, | |
524 | "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n", | |
525 | (unsigned long long)pkt_dev->count, pkt_dev->min_pkt_size, | |
526 | pkt_dev->max_pkt_size); | |
527 | ||
528 | seq_printf(seq, | |
fd29cf72 SH |
529 | " frags: %d delay: %llu clone_skb: %d ifname: %s\n", |
530 | pkt_dev->nfrags, (unsigned long long) pkt_dev->delay, | |
39df232f | 531 | pkt_dev->clone_skb, pkt_dev->odev->name); |
222f1806 LC |
532 | |
533 | seq_printf(seq, " flows: %u flowlen: %u\n", pkt_dev->cflows, | |
534 | pkt_dev->lflow); | |
535 | ||
45b270f8 RO |
536 | seq_printf(seq, |
537 | " queue_map_min: %u queue_map_max: %u\n", | |
538 | pkt_dev->queue_map_min, | |
539 | pkt_dev->queue_map_max); | |
540 | ||
222f1806 LC |
541 | if (pkt_dev->flags & F_IPV6) { |
542 | char b1[128], b2[128], b3[128]; | |
543 | fmt_ip6(b1, pkt_dev->in6_saddr.s6_addr); | |
544 | fmt_ip6(b2, pkt_dev->min_in6_saddr.s6_addr); | |
545 | fmt_ip6(b3, pkt_dev->max_in6_saddr.s6_addr); | |
546 | seq_printf(seq, | |
547 | " saddr: %s min_saddr: %s max_saddr: %s\n", b1, | |
548 | b2, b3); | |
549 | ||
550 | fmt_ip6(b1, pkt_dev->in6_daddr.s6_addr); | |
551 | fmt_ip6(b2, pkt_dev->min_in6_daddr.s6_addr); | |
552 | fmt_ip6(b3, pkt_dev->max_in6_daddr.s6_addr); | |
553 | seq_printf(seq, | |
554 | " daddr: %s min_daddr: %s max_daddr: %s\n", b1, | |
555 | b2, b3); | |
556 | ||
63adc6fb SH |
557 | } else { |
558 | seq_printf(seq, | |
559 | " dst_min: %s dst_max: %s\n", | |
560 | pkt_dev->dst_min, pkt_dev->dst_max); | |
222f1806 | 561 | seq_printf(seq, |
63adc6fb SH |
562 | " src_min: %s src_max: %s\n", |
563 | pkt_dev->src_min, pkt_dev->src_max); | |
564 | } | |
1da177e4 | 565 | |
222f1806 | 566 | seq_puts(seq, " src_mac: "); |
1da177e4 | 567 | |
e174961c JB |
568 | seq_printf(seq, "%pM ", |
569 | is_zero_ether_addr(pkt_dev->src_mac) ? | |
570 | pkt_dev->odev->dev_addr : pkt_dev->src_mac); | |
222f1806 LC |
571 | |
572 | seq_printf(seq, "dst_mac: "); | |
e174961c | 573 | seq_printf(seq, "%pM\n", pkt_dev->dst_mac); |
222f1806 LC |
574 | |
575 | seq_printf(seq, | |
63adc6fb SH |
576 | " udp_src_min: %d udp_src_max: %d" |
577 | " udp_dst_min: %d udp_dst_max: %d\n", | |
222f1806 LC |
578 | pkt_dev->udp_src_min, pkt_dev->udp_src_max, |
579 | pkt_dev->udp_dst_min, pkt_dev->udp_dst_max); | |
580 | ||
581 | seq_printf(seq, | |
ca6549af | 582 | " src_mac_count: %d dst_mac_count: %d\n", |
222f1806 | 583 | pkt_dev->src_mac_count, pkt_dev->dst_mac_count); |
1da177e4 | 584 | |
ca6549af SW |
585 | if (pkt_dev->nr_labels) { |
586 | unsigned i; | |
587 | seq_printf(seq, " mpls: "); | |
e71a4783 | 588 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
589 | seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]), |
590 | i == pkt_dev->nr_labels-1 ? "\n" : ", "); | |
591 | } | |
592 | ||
63adc6fb | 593 | if (pkt_dev->vlan_id != 0xffff) |
34954ddc | 594 | seq_printf(seq, " vlan_id: %u vlan_p: %u vlan_cfi: %u\n", |
63adc6fb SH |
595 | pkt_dev->vlan_id, pkt_dev->vlan_p, |
596 | pkt_dev->vlan_cfi); | |
34954ddc | 597 | |
63adc6fb | 598 | if (pkt_dev->svlan_id != 0xffff) |
34954ddc | 599 | seq_printf(seq, " svlan_id: %u vlan_p: %u vlan_cfi: %u\n", |
63adc6fb SH |
600 | pkt_dev->svlan_id, pkt_dev->svlan_p, |
601 | pkt_dev->svlan_cfi); | |
34954ddc | 602 | |
63adc6fb | 603 | if (pkt_dev->tos) |
1ca7768c | 604 | seq_printf(seq, " tos: 0x%02x\n", pkt_dev->tos); |
1ca7768c | 605 | |
63adc6fb | 606 | if (pkt_dev->traffic_class) |
1ca7768c | 607 | seq_printf(seq, " traffic_class: 0x%02x\n", pkt_dev->traffic_class); |
1ca7768c | 608 | |
ca6549af SW |
609 | seq_printf(seq, " Flags: "); |
610 | ||
222f1806 LC |
611 | if (pkt_dev->flags & F_IPV6) |
612 | seq_printf(seq, "IPV6 "); | |
1da177e4 | 613 | |
222f1806 LC |
614 | if (pkt_dev->flags & F_IPSRC_RND) |
615 | seq_printf(seq, "IPSRC_RND "); | |
1da177e4 | 616 | |
222f1806 LC |
617 | if (pkt_dev->flags & F_IPDST_RND) |
618 | seq_printf(seq, "IPDST_RND "); | |
1da177e4 | 619 | |
222f1806 LC |
620 | if (pkt_dev->flags & F_TXSIZE_RND) |
621 | seq_printf(seq, "TXSIZE_RND "); | |
1da177e4 | 622 | |
222f1806 LC |
623 | if (pkt_dev->flags & F_UDPSRC_RND) |
624 | seq_printf(seq, "UDPSRC_RND "); | |
1da177e4 | 625 | |
222f1806 LC |
626 | if (pkt_dev->flags & F_UDPDST_RND) |
627 | seq_printf(seq, "UDPDST_RND "); | |
1da177e4 | 628 | |
ca6549af SW |
629 | if (pkt_dev->flags & F_MPLS_RND) |
630 | seq_printf(seq, "MPLS_RND "); | |
631 | ||
45b270f8 RO |
632 | if (pkt_dev->flags & F_QUEUE_MAP_RND) |
633 | seq_printf(seq, "QUEUE_MAP_RND "); | |
634 | ||
e6fce5b9 RO |
635 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) |
636 | seq_printf(seq, "QUEUE_MAP_CPU "); | |
637 | ||
007a531b JHS |
638 | if (pkt_dev->cflows) { |
639 | if (pkt_dev->flags & F_FLOW_SEQ) | |
640 | seq_printf(seq, "FLOW_SEQ "); /*in sequence flows*/ | |
641 | else | |
642 | seq_printf(seq, "FLOW_RND "); | |
643 | } | |
644 | ||
a553e4a6 JHS |
645 | #ifdef CONFIG_XFRM |
646 | if (pkt_dev->flags & F_IPSEC_ON) | |
647 | seq_printf(seq, "IPSEC "); | |
648 | #endif | |
649 | ||
222f1806 LC |
650 | if (pkt_dev->flags & F_MACSRC_RND) |
651 | seq_printf(seq, "MACSRC_RND "); | |
1da177e4 | 652 | |
222f1806 LC |
653 | if (pkt_dev->flags & F_MACDST_RND) |
654 | seq_printf(seq, "MACDST_RND "); | |
1da177e4 | 655 | |
34954ddc FF |
656 | if (pkt_dev->flags & F_VID_RND) |
657 | seq_printf(seq, "VID_RND "); | |
658 | ||
659 | if (pkt_dev->flags & F_SVID_RND) | |
660 | seq_printf(seq, "SVID_RND "); | |
661 | ||
222f1806 LC |
662 | seq_puts(seq, "\n"); |
663 | ||
fd29cf72 SH |
664 | /* not really stopped, more like last-running-at */ |
665 | stopped = pkt_dev->running ? ktime_now() : pkt_dev->stopped_at; | |
666 | idle = pkt_dev->idle_acc; | |
667 | do_div(idle, NSEC_PER_USEC); | |
1da177e4 | 668 | |
222f1806 | 669 | seq_printf(seq, |
fd29cf72 | 670 | "Current:\n pkts-sofar: %llu errors: %llu\n", |
222f1806 | 671 | (unsigned long long)pkt_dev->sofar, |
fd29cf72 SH |
672 | (unsigned long long)pkt_dev->errors); |
673 | ||
674 | seq_printf(seq, | |
675 | " started: %lluus stopped: %lluus idle: %lluus\n", | |
676 | (unsigned long long) ktime_to_us(pkt_dev->started_at), | |
677 | (unsigned long long) ktime_to_us(stopped), | |
678 | (unsigned long long) idle); | |
1da177e4 | 679 | |
222f1806 LC |
680 | seq_printf(seq, |
681 | " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n", | |
d50a6b56 SH |
682 | pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset, |
683 | pkt_dev->cur_src_mac_offset); | |
1da177e4 | 684 | |
222f1806 | 685 | if (pkt_dev->flags & F_IPV6) { |
1da177e4 | 686 | char b1[128], b2[128]; |
222f1806 LC |
687 | fmt_ip6(b1, pkt_dev->cur_in6_daddr.s6_addr); |
688 | fmt_ip6(b2, pkt_dev->cur_in6_saddr.s6_addr); | |
689 | seq_printf(seq, " cur_saddr: %s cur_daddr: %s\n", b2, b1); | |
690 | } else | |
691 | seq_printf(seq, " cur_saddr: 0x%x cur_daddr: 0x%x\n", | |
d50a6b56 | 692 | pkt_dev->cur_saddr, pkt_dev->cur_daddr); |
1da177e4 | 693 | |
222f1806 | 694 | seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n", |
d50a6b56 | 695 | pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src); |
1da177e4 | 696 | |
45b270f8 RO |
697 | seq_printf(seq, " cur_queue_map: %u\n", pkt_dev->cur_queue_map); |
698 | ||
222f1806 | 699 | seq_printf(seq, " flows: %u\n", pkt_dev->nflows); |
1da177e4 LT |
700 | |
701 | if (pkt_dev->result[0]) | |
222f1806 | 702 | seq_printf(seq, "Result: %s\n", pkt_dev->result); |
1da177e4 | 703 | else |
222f1806 | 704 | seq_printf(seq, "Result: Idle\n"); |
1da177e4 | 705 | |
d50a6b56 | 706 | return 0; |
1da177e4 LT |
707 | } |
708 | ||
ca6549af | 709 | |
63adc6fb SH |
710 | static int hex32_arg(const char __user *user_buffer, unsigned long maxlen, |
711 | __u32 *num) | |
ca6549af SW |
712 | { |
713 | int i = 0; | |
714 | *num = 0; | |
715 | ||
e71a4783 | 716 | for (; i < maxlen; i++) { |
ca6549af SW |
717 | char c; |
718 | *num <<= 4; | |
719 | if (get_user(c, &user_buffer[i])) | |
720 | return -EFAULT; | |
721 | if ((c >= '0') && (c <= '9')) | |
722 | *num |= c - '0'; | |
723 | else if ((c >= 'a') && (c <= 'f')) | |
724 | *num |= c - 'a' + 10; | |
725 | else if ((c >= 'A') && (c <= 'F')) | |
726 | *num |= c - 'A' + 10; | |
727 | else | |
728 | break; | |
729 | } | |
730 | return i; | |
731 | } | |
732 | ||
222f1806 LC |
733 | static int count_trail_chars(const char __user * user_buffer, |
734 | unsigned int maxlen) | |
1da177e4 LT |
735 | { |
736 | int i; | |
737 | ||
738 | for (i = 0; i < maxlen; i++) { | |
222f1806 LC |
739 | char c; |
740 | if (get_user(c, &user_buffer[i])) | |
741 | return -EFAULT; | |
742 | switch (c) { | |
1da177e4 LT |
743 | case '\"': |
744 | case '\n': | |
745 | case '\r': | |
746 | case '\t': | |
747 | case ' ': | |
748 | case '=': | |
749 | break; | |
750 | default: | |
751 | goto done; | |
3ff50b79 | 752 | } |
1da177e4 LT |
753 | } |
754 | done: | |
755 | return i; | |
756 | } | |
757 | ||
222f1806 LC |
758 | static unsigned long num_arg(const char __user * user_buffer, |
759 | unsigned long maxlen, unsigned long *num) | |
1da177e4 LT |
760 | { |
761 | int i = 0; | |
762 | *num = 0; | |
222f1806 LC |
763 | |
764 | for (; i < maxlen; i++) { | |
765 | char c; | |
766 | if (get_user(c, &user_buffer[i])) | |
767 | return -EFAULT; | |
768 | if ((c >= '0') && (c <= '9')) { | |
1da177e4 | 769 | *num *= 10; |
222f1806 | 770 | *num += c - '0'; |
1da177e4 LT |
771 | } else |
772 | break; | |
773 | } | |
774 | return i; | |
775 | } | |
776 | ||
222f1806 | 777 | static int strn_len(const char __user * user_buffer, unsigned int maxlen) |
1da177e4 LT |
778 | { |
779 | int i = 0; | |
780 | ||
222f1806 LC |
781 | for (; i < maxlen; i++) { |
782 | char c; | |
783 | if (get_user(c, &user_buffer[i])) | |
784 | return -EFAULT; | |
785 | switch (c) { | |
1da177e4 LT |
786 | case '\"': |
787 | case '\n': | |
788 | case '\r': | |
789 | case '\t': | |
790 | case ' ': | |
791 | goto done_str; | |
792 | break; | |
793 | default: | |
794 | break; | |
3ff50b79 | 795 | } |
1da177e4 LT |
796 | } |
797 | done_str: | |
1da177e4 LT |
798 | return i; |
799 | } | |
800 | ||
ca6549af SW |
801 | static ssize_t get_labels(const char __user *buffer, struct pktgen_dev *pkt_dev) |
802 | { | |
803 | unsigned n = 0; | |
804 | char c; | |
805 | ssize_t i = 0; | |
806 | int len; | |
807 | ||
808 | pkt_dev->nr_labels = 0; | |
809 | do { | |
810 | __u32 tmp; | |
1ca7768c | 811 | len = hex32_arg(&buffer[i], 8, &tmp); |
ca6549af SW |
812 | if (len <= 0) |
813 | return len; | |
814 | pkt_dev->labels[n] = htonl(tmp); | |
815 | if (pkt_dev->labels[n] & MPLS_STACK_BOTTOM) | |
816 | pkt_dev->flags |= F_MPLS_RND; | |
817 | i += len; | |
818 | if (get_user(c, &buffer[i])) | |
819 | return -EFAULT; | |
820 | i++; | |
821 | n++; | |
822 | if (n >= MAX_MPLS_LABELS) | |
823 | return -E2BIG; | |
e71a4783 | 824 | } while (c == ','); |
ca6549af SW |
825 | |
826 | pkt_dev->nr_labels = n; | |
827 | return i; | |
828 | } | |
829 | ||
222f1806 LC |
830 | static ssize_t pktgen_if_write(struct file *file, |
831 | const char __user * user_buffer, size_t count, | |
832 | loff_t * offset) | |
1da177e4 | 833 | { |
222f1806 LC |
834 | struct seq_file *seq = (struct seq_file *)file->private_data; |
835 | struct pktgen_dev *pkt_dev = seq->private; | |
1da177e4 LT |
836 | int i = 0, max, len; |
837 | char name[16], valstr[32]; | |
838 | unsigned long value = 0; | |
222f1806 LC |
839 | char *pg_result = NULL; |
840 | int tmp = 0; | |
1da177e4 | 841 | char buf[128]; |
222f1806 LC |
842 | |
843 | pg_result = &(pkt_dev->result[0]); | |
844 | ||
1da177e4 | 845 | if (count < 1) { |
25a8b254 | 846 | printk(KERN_WARNING "pktgen: wrong command format\n"); |
1da177e4 LT |
847 | return -EINVAL; |
848 | } | |
222f1806 | 849 | |
1da177e4 LT |
850 | max = count - i; |
851 | tmp = count_trail_chars(&user_buffer[i], max); | |
222f1806 | 852 | if (tmp < 0) { |
25a8b254 | 853 | printk(KERN_WARNING "pktgen: illegal format\n"); |
222f1806 | 854 | return tmp; |
1da177e4 | 855 | } |
222f1806 LC |
856 | i += tmp; |
857 | ||
1da177e4 LT |
858 | /* Read variable name */ |
859 | ||
860 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
63adc6fb | 861 | if (len < 0) |
222f1806 | 862 | return len; |
63adc6fb | 863 | |
1da177e4 | 864 | memset(name, 0, sizeof(name)); |
222f1806 | 865 | if (copy_from_user(name, &user_buffer[i], len)) |
1da177e4 LT |
866 | return -EFAULT; |
867 | i += len; | |
222f1806 LC |
868 | |
869 | max = count - i; | |
1da177e4 | 870 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 LC |
871 | if (len < 0) |
872 | return len; | |
873 | ||
1da177e4 LT |
874 | i += len; |
875 | ||
876 | if (debug) { | |
222f1806 LC |
877 | char tb[count + 1]; |
878 | if (copy_from_user(tb, user_buffer, count)) | |
1da177e4 | 879 | return -EFAULT; |
222f1806 | 880 | tb[count] = 0; |
25a8b254 | 881 | printk(KERN_DEBUG "pktgen: %s,%lu buffer -:%s:-\n", name, |
222f1806 LC |
882 | (unsigned long)count, tb); |
883 | } | |
1da177e4 LT |
884 | |
885 | if (!strcmp(name, "min_pkt_size")) { | |
886 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 887 | if (len < 0) |
222f1806 | 888 | return len; |
63adc6fb | 889 | |
1da177e4 | 890 | i += len; |
222f1806 LC |
891 | if (value < 14 + 20 + 8) |
892 | value = 14 + 20 + 8; | |
893 | if (value != pkt_dev->min_pkt_size) { | |
894 | pkt_dev->min_pkt_size = value; | |
895 | pkt_dev->cur_pkt_size = value; | |
896 | } | |
897 | sprintf(pg_result, "OK: min_pkt_size=%u", | |
898 | pkt_dev->min_pkt_size); | |
1da177e4 LT |
899 | return count; |
900 | } | |
901 | ||
222f1806 | 902 | if (!strcmp(name, "max_pkt_size")) { |
1da177e4 | 903 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 904 | if (len < 0) |
222f1806 | 905 | return len; |
63adc6fb | 906 | |
1da177e4 | 907 | i += len; |
222f1806 LC |
908 | if (value < 14 + 20 + 8) |
909 | value = 14 + 20 + 8; | |
910 | if (value != pkt_dev->max_pkt_size) { | |
911 | pkt_dev->max_pkt_size = value; | |
912 | pkt_dev->cur_pkt_size = value; | |
913 | } | |
914 | sprintf(pg_result, "OK: max_pkt_size=%u", | |
915 | pkt_dev->max_pkt_size); | |
1da177e4 LT |
916 | return count; |
917 | } | |
918 | ||
222f1806 | 919 | /* Shortcut for min = max */ |
1da177e4 LT |
920 | |
921 | if (!strcmp(name, "pkt_size")) { | |
922 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 923 | if (len < 0) |
222f1806 | 924 | return len; |
63adc6fb | 925 | |
1da177e4 | 926 | i += len; |
222f1806 LC |
927 | if (value < 14 + 20 + 8) |
928 | value = 14 + 20 + 8; | |
929 | if (value != pkt_dev->min_pkt_size) { | |
930 | pkt_dev->min_pkt_size = value; | |
931 | pkt_dev->max_pkt_size = value; | |
932 | pkt_dev->cur_pkt_size = value; | |
933 | } | |
1da177e4 LT |
934 | sprintf(pg_result, "OK: pkt_size=%u", pkt_dev->min_pkt_size); |
935 | return count; | |
936 | } | |
937 | ||
222f1806 | 938 | if (!strcmp(name, "debug")) { |
1da177e4 | 939 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 940 | if (len < 0) |
222f1806 | 941 | return len; |
63adc6fb | 942 | |
1da177e4 | 943 | i += len; |
222f1806 | 944 | debug = value; |
1da177e4 LT |
945 | sprintf(pg_result, "OK: debug=%u", debug); |
946 | return count; | |
947 | } | |
948 | ||
222f1806 | 949 | if (!strcmp(name, "frags")) { |
1da177e4 | 950 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 951 | if (len < 0) |
222f1806 | 952 | return len; |
63adc6fb | 953 | |
1da177e4 LT |
954 | i += len; |
955 | pkt_dev->nfrags = value; | |
956 | sprintf(pg_result, "OK: frags=%u", pkt_dev->nfrags); | |
957 | return count; | |
958 | } | |
959 | if (!strcmp(name, "delay")) { | |
960 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 961 | if (len < 0) |
222f1806 | 962 | return len; |
63adc6fb | 963 | |
1da177e4 | 964 | i += len; |
fd29cf72 SH |
965 | if (value == 0x7FFFFFFF) |
966 | pkt_dev->delay = ULLONG_MAX; | |
967 | else | |
968 | pkt_dev->delay = (u64)value * NSEC_PER_USEC; | |
969 | ||
970 | sprintf(pg_result, "OK: delay=%llu", | |
971 | (unsigned long long) pkt_dev->delay); | |
1da177e4 LT |
972 | return count; |
973 | } | |
222f1806 | 974 | if (!strcmp(name, "udp_src_min")) { |
1da177e4 | 975 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 976 | if (len < 0) |
222f1806 | 977 | return len; |
63adc6fb | 978 | |
1da177e4 | 979 | i += len; |
222f1806 LC |
980 | if (value != pkt_dev->udp_src_min) { |
981 | pkt_dev->udp_src_min = value; | |
982 | pkt_dev->cur_udp_src = value; | |
983 | } | |
1da177e4 LT |
984 | sprintf(pg_result, "OK: udp_src_min=%u", pkt_dev->udp_src_min); |
985 | return count; | |
986 | } | |
222f1806 | 987 | if (!strcmp(name, "udp_dst_min")) { |
1da177e4 | 988 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 989 | if (len < 0) |
222f1806 | 990 | return len; |
63adc6fb | 991 | |
1da177e4 | 992 | i += len; |
222f1806 LC |
993 | if (value != pkt_dev->udp_dst_min) { |
994 | pkt_dev->udp_dst_min = value; | |
995 | pkt_dev->cur_udp_dst = value; | |
996 | } | |
1da177e4 LT |
997 | sprintf(pg_result, "OK: udp_dst_min=%u", pkt_dev->udp_dst_min); |
998 | return count; | |
999 | } | |
222f1806 | 1000 | if (!strcmp(name, "udp_src_max")) { |
1da177e4 | 1001 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1002 | if (len < 0) |
222f1806 | 1003 | return len; |
63adc6fb | 1004 | |
1da177e4 | 1005 | i += len; |
222f1806 LC |
1006 | if (value != pkt_dev->udp_src_max) { |
1007 | pkt_dev->udp_src_max = value; | |
1008 | pkt_dev->cur_udp_src = value; | |
1009 | } | |
1da177e4 LT |
1010 | sprintf(pg_result, "OK: udp_src_max=%u", pkt_dev->udp_src_max); |
1011 | return count; | |
1012 | } | |
222f1806 | 1013 | if (!strcmp(name, "udp_dst_max")) { |
1da177e4 | 1014 | len = num_arg(&user_buffer[i], 10, &value); |
63adc6fb | 1015 | if (len < 0) |
222f1806 | 1016 | return len; |
63adc6fb | 1017 | |
1da177e4 | 1018 | i += len; |
222f1806 LC |
1019 | if (value != pkt_dev->udp_dst_max) { |
1020 | pkt_dev->udp_dst_max = value; | |
1021 | pkt_dev->cur_udp_dst = value; | |
1022 | } | |
1da177e4 LT |
1023 | sprintf(pg_result, "OK: udp_dst_max=%u", pkt_dev->udp_dst_max); |
1024 | return count; | |
1025 | } | |
1026 | if (!strcmp(name, "clone_skb")) { | |
1027 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1028 | if (len < 0) |
222f1806 | 1029 | return len; |
63adc6fb | 1030 | |
1da177e4 | 1031 | i += len; |
222f1806 LC |
1032 | pkt_dev->clone_skb = value; |
1033 | ||
1da177e4 LT |
1034 | sprintf(pg_result, "OK: clone_skb=%d", pkt_dev->clone_skb); |
1035 | return count; | |
1036 | } | |
1037 | if (!strcmp(name, "count")) { | |
1038 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1039 | if (len < 0) |
222f1806 | 1040 | return len; |
63adc6fb | 1041 | |
1da177e4 LT |
1042 | i += len; |
1043 | pkt_dev->count = value; | |
1044 | sprintf(pg_result, "OK: count=%llu", | |
222f1806 | 1045 | (unsigned long long)pkt_dev->count); |
1da177e4 LT |
1046 | return count; |
1047 | } | |
1048 | if (!strcmp(name, "src_mac_count")) { | |
1049 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1050 | if (len < 0) |
222f1806 | 1051 | return len; |
63adc6fb | 1052 | |
1da177e4 LT |
1053 | i += len; |
1054 | if (pkt_dev->src_mac_count != value) { | |
222f1806 LC |
1055 | pkt_dev->src_mac_count = value; |
1056 | pkt_dev->cur_src_mac_offset = 0; | |
1057 | } | |
1058 | sprintf(pg_result, "OK: src_mac_count=%d", | |
1059 | pkt_dev->src_mac_count); | |
1da177e4 LT |
1060 | return count; |
1061 | } | |
1062 | if (!strcmp(name, "dst_mac_count")) { | |
1063 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1064 | if (len < 0) |
222f1806 | 1065 | return len; |
63adc6fb | 1066 | |
1da177e4 LT |
1067 | i += len; |
1068 | if (pkt_dev->dst_mac_count != value) { | |
222f1806 LC |
1069 | pkt_dev->dst_mac_count = value; |
1070 | pkt_dev->cur_dst_mac_offset = 0; | |
1071 | } | |
1072 | sprintf(pg_result, "OK: dst_mac_count=%d", | |
1073 | pkt_dev->dst_mac_count); | |
1da177e4 LT |
1074 | return count; |
1075 | } | |
1076 | if (!strcmp(name, "flag")) { | |
222f1806 LC |
1077 | char f[32]; |
1078 | memset(f, 0, 32); | |
1da177e4 | 1079 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
63adc6fb | 1080 | if (len < 0) |
222f1806 | 1081 | return len; |
63adc6fb | 1082 | |
1da177e4 LT |
1083 | if (copy_from_user(f, &user_buffer[i], len)) |
1084 | return -EFAULT; | |
1085 | i += len; | |
222f1806 LC |
1086 | if (strcmp(f, "IPSRC_RND") == 0) |
1087 | pkt_dev->flags |= F_IPSRC_RND; | |
1088 | ||
1089 | else if (strcmp(f, "!IPSRC_RND") == 0) | |
1090 | pkt_dev->flags &= ~F_IPSRC_RND; | |
1091 | ||
1092 | else if (strcmp(f, "TXSIZE_RND") == 0) | |
1093 | pkt_dev->flags |= F_TXSIZE_RND; | |
1094 | ||
1095 | else if (strcmp(f, "!TXSIZE_RND") == 0) | |
1096 | pkt_dev->flags &= ~F_TXSIZE_RND; | |
1097 | ||
1098 | else if (strcmp(f, "IPDST_RND") == 0) | |
1099 | pkt_dev->flags |= F_IPDST_RND; | |
1100 | ||
1101 | else if (strcmp(f, "!IPDST_RND") == 0) | |
1102 | pkt_dev->flags &= ~F_IPDST_RND; | |
1103 | ||
1104 | else if (strcmp(f, "UDPSRC_RND") == 0) | |
1105 | pkt_dev->flags |= F_UDPSRC_RND; | |
1106 | ||
1107 | else if (strcmp(f, "!UDPSRC_RND") == 0) | |
1108 | pkt_dev->flags &= ~F_UDPSRC_RND; | |
1109 | ||
1110 | else if (strcmp(f, "UDPDST_RND") == 0) | |
1111 | pkt_dev->flags |= F_UDPDST_RND; | |
1112 | ||
1113 | else if (strcmp(f, "!UDPDST_RND") == 0) | |
1114 | pkt_dev->flags &= ~F_UDPDST_RND; | |
1115 | ||
1116 | else if (strcmp(f, "MACSRC_RND") == 0) | |
1117 | pkt_dev->flags |= F_MACSRC_RND; | |
1118 | ||
1119 | else if (strcmp(f, "!MACSRC_RND") == 0) | |
1120 | pkt_dev->flags &= ~F_MACSRC_RND; | |
1121 | ||
1122 | else if (strcmp(f, "MACDST_RND") == 0) | |
1123 | pkt_dev->flags |= F_MACDST_RND; | |
1124 | ||
1125 | else if (strcmp(f, "!MACDST_RND") == 0) | |
1126 | pkt_dev->flags &= ~F_MACDST_RND; | |
1127 | ||
ca6549af SW |
1128 | else if (strcmp(f, "MPLS_RND") == 0) |
1129 | pkt_dev->flags |= F_MPLS_RND; | |
1130 | ||
1131 | else if (strcmp(f, "!MPLS_RND") == 0) | |
1132 | pkt_dev->flags &= ~F_MPLS_RND; | |
1133 | ||
34954ddc FF |
1134 | else if (strcmp(f, "VID_RND") == 0) |
1135 | pkt_dev->flags |= F_VID_RND; | |
1136 | ||
1137 | else if (strcmp(f, "!VID_RND") == 0) | |
1138 | pkt_dev->flags &= ~F_VID_RND; | |
1139 | ||
1140 | else if (strcmp(f, "SVID_RND") == 0) | |
1141 | pkt_dev->flags |= F_SVID_RND; | |
1142 | ||
1143 | else if (strcmp(f, "!SVID_RND") == 0) | |
1144 | pkt_dev->flags &= ~F_SVID_RND; | |
1145 | ||
007a531b JHS |
1146 | else if (strcmp(f, "FLOW_SEQ") == 0) |
1147 | pkt_dev->flags |= F_FLOW_SEQ; | |
1148 | ||
45b270f8 RO |
1149 | else if (strcmp(f, "QUEUE_MAP_RND") == 0) |
1150 | pkt_dev->flags |= F_QUEUE_MAP_RND; | |
1151 | ||
1152 | else if (strcmp(f, "!QUEUE_MAP_RND") == 0) | |
1153 | pkt_dev->flags &= ~F_QUEUE_MAP_RND; | |
e6fce5b9 RO |
1154 | |
1155 | else if (strcmp(f, "QUEUE_MAP_CPU") == 0) | |
1156 | pkt_dev->flags |= F_QUEUE_MAP_CPU; | |
1157 | ||
1158 | else if (strcmp(f, "!QUEUE_MAP_CPU") == 0) | |
1159 | pkt_dev->flags &= ~F_QUEUE_MAP_CPU; | |
a553e4a6 JHS |
1160 | #ifdef CONFIG_XFRM |
1161 | else if (strcmp(f, "IPSEC") == 0) | |
1162 | pkt_dev->flags |= F_IPSEC_ON; | |
1163 | #endif | |
1164 | ||
1ca7768c FF |
1165 | else if (strcmp(f, "!IPV6") == 0) |
1166 | pkt_dev->flags &= ~F_IPV6; | |
1167 | ||
222f1806 LC |
1168 | else { |
1169 | sprintf(pg_result, | |
1170 | "Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s", | |
1171 | f, | |
1ca7768c | 1172 | "IPSRC_RND, IPDST_RND, UDPSRC_RND, UDPDST_RND, " |
a553e4a6 | 1173 | "MACSRC_RND, MACDST_RND, TXSIZE_RND, IPV6, MPLS_RND, VID_RND, SVID_RND, FLOW_SEQ, IPSEC\n"); |
222f1806 LC |
1174 | return count; |
1175 | } | |
1da177e4 LT |
1176 | sprintf(pg_result, "OK: flags=0x%x", pkt_dev->flags); |
1177 | return count; | |
1178 | } | |
1179 | if (!strcmp(name, "dst_min") || !strcmp(name, "dst")) { | |
1180 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_min) - 1); | |
63adc6fb | 1181 | if (len < 0) |
222f1806 | 1182 | return len; |
1da177e4 | 1183 | |
222f1806 | 1184 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1185 | return -EFAULT; |
222f1806 LC |
1186 | buf[len] = 0; |
1187 | if (strcmp(buf, pkt_dev->dst_min) != 0) { | |
1188 | memset(pkt_dev->dst_min, 0, sizeof(pkt_dev->dst_min)); | |
1189 | strncpy(pkt_dev->dst_min, buf, len); | |
1190 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
1191 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
1192 | } | |
1193 | if (debug) | |
25a8b254 | 1194 | printk(KERN_DEBUG "pktgen: dst_min set to: %s\n", |
222f1806 LC |
1195 | pkt_dev->dst_min); |
1196 | i += len; | |
1da177e4 LT |
1197 | sprintf(pg_result, "OK: dst_min=%s", pkt_dev->dst_min); |
1198 | return count; | |
1199 | } | |
1200 | if (!strcmp(name, "dst_max")) { | |
1201 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_max) - 1); | |
63adc6fb | 1202 | if (len < 0) |
222f1806 | 1203 | return len; |
63adc6fb | 1204 | |
1da177e4 | 1205 | |
222f1806 | 1206 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 LT |
1207 | return -EFAULT; |
1208 | ||
222f1806 LC |
1209 | buf[len] = 0; |
1210 | if (strcmp(buf, pkt_dev->dst_max) != 0) { | |
1211 | memset(pkt_dev->dst_max, 0, sizeof(pkt_dev->dst_max)); | |
1212 | strncpy(pkt_dev->dst_max, buf, len); | |
1213 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
1214 | pkt_dev->cur_daddr = pkt_dev->daddr_max; | |
1215 | } | |
1216 | if (debug) | |
25a8b254 | 1217 | printk(KERN_DEBUG "pktgen: dst_max set to: %s\n", |
222f1806 | 1218 | pkt_dev->dst_max); |
1da177e4 LT |
1219 | i += len; |
1220 | sprintf(pg_result, "OK: dst_max=%s", pkt_dev->dst_max); | |
1221 | return count; | |
1222 | } | |
1223 | if (!strcmp(name, "dst6")) { | |
1224 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1225 | if (len < 0) |
1226 | return len; | |
1da177e4 LT |
1227 | |
1228 | pkt_dev->flags |= F_IPV6; | |
1229 | ||
222f1806 | 1230 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1231 | return -EFAULT; |
222f1806 | 1232 | buf[len] = 0; |
1da177e4 LT |
1233 | |
1234 | scan_ip6(buf, pkt_dev->in6_daddr.s6_addr); | |
222f1806 | 1235 | fmt_ip6(buf, pkt_dev->in6_daddr.s6_addr); |
1da177e4 LT |
1236 | |
1237 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, &pkt_dev->in6_daddr); | |
1238 | ||
222f1806 | 1239 | if (debug) |
25a8b254 | 1240 | printk(KERN_DEBUG "pktgen: dst6 set to: %s\n", buf); |
1da177e4 | 1241 | |
222f1806 | 1242 | i += len; |
1da177e4 LT |
1243 | sprintf(pg_result, "OK: dst6=%s", buf); |
1244 | return count; | |
1245 | } | |
1246 | if (!strcmp(name, "dst6_min")) { | |
1247 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1248 | if (len < 0) |
1249 | return len; | |
1da177e4 LT |
1250 | |
1251 | pkt_dev->flags |= F_IPV6; | |
1252 | ||
222f1806 | 1253 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1254 | return -EFAULT; |
222f1806 | 1255 | buf[len] = 0; |
1da177e4 LT |
1256 | |
1257 | scan_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); | |
222f1806 | 1258 | fmt_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); |
1da177e4 | 1259 | |
222f1806 LC |
1260 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, |
1261 | &pkt_dev->min_in6_daddr); | |
1262 | if (debug) | |
25a8b254 | 1263 | printk(KERN_DEBUG "pktgen: dst6_min set to: %s\n", buf); |
1da177e4 | 1264 | |
222f1806 | 1265 | i += len; |
1da177e4 LT |
1266 | sprintf(pg_result, "OK: dst6_min=%s", buf); |
1267 | return count; | |
1268 | } | |
1269 | if (!strcmp(name, "dst6_max")) { | |
1270 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1271 | if (len < 0) |
1272 | return len; | |
1da177e4 LT |
1273 | |
1274 | pkt_dev->flags |= F_IPV6; | |
1275 | ||
222f1806 | 1276 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1277 | return -EFAULT; |
222f1806 | 1278 | buf[len] = 0; |
1da177e4 LT |
1279 | |
1280 | scan_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); | |
222f1806 | 1281 | fmt_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); |
1da177e4 | 1282 | |
222f1806 | 1283 | if (debug) |
25a8b254 | 1284 | printk(KERN_DEBUG "pktgen: dst6_max set to: %s\n", buf); |
1da177e4 | 1285 | |
222f1806 | 1286 | i += len; |
1da177e4 LT |
1287 | sprintf(pg_result, "OK: dst6_max=%s", buf); |
1288 | return count; | |
1289 | } | |
1290 | if (!strcmp(name, "src6")) { | |
1291 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1292 | if (len < 0) |
1293 | return len; | |
1da177e4 LT |
1294 | |
1295 | pkt_dev->flags |= F_IPV6; | |
1296 | ||
222f1806 | 1297 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1298 | return -EFAULT; |
222f1806 | 1299 | buf[len] = 0; |
1da177e4 LT |
1300 | |
1301 | scan_ip6(buf, pkt_dev->in6_saddr.s6_addr); | |
222f1806 | 1302 | fmt_ip6(buf, pkt_dev->in6_saddr.s6_addr); |
1da177e4 LT |
1303 | |
1304 | ipv6_addr_copy(&pkt_dev->cur_in6_saddr, &pkt_dev->in6_saddr); | |
1305 | ||
222f1806 | 1306 | if (debug) |
25a8b254 | 1307 | printk(KERN_DEBUG "pktgen: src6 set to: %s\n", buf); |
222f1806 LC |
1308 | |
1309 | i += len; | |
1da177e4 LT |
1310 | sprintf(pg_result, "OK: src6=%s", buf); |
1311 | return count; | |
1312 | } | |
1313 | if (!strcmp(name, "src_min")) { | |
1314 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_min) - 1); | |
63adc6fb | 1315 | if (len < 0) |
222f1806 | 1316 | return len; |
63adc6fb | 1317 | |
222f1806 | 1318 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1319 | return -EFAULT; |
222f1806 LC |
1320 | buf[len] = 0; |
1321 | if (strcmp(buf, pkt_dev->src_min) != 0) { | |
1322 | memset(pkt_dev->src_min, 0, sizeof(pkt_dev->src_min)); | |
1323 | strncpy(pkt_dev->src_min, buf, len); | |
1324 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); | |
1325 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
1326 | } | |
1327 | if (debug) | |
25a8b254 | 1328 | printk(KERN_DEBUG "pktgen: src_min set to: %s\n", |
222f1806 | 1329 | pkt_dev->src_min); |
1da177e4 LT |
1330 | i += len; |
1331 | sprintf(pg_result, "OK: src_min=%s", pkt_dev->src_min); | |
1332 | return count; | |
1333 | } | |
1334 | if (!strcmp(name, "src_max")) { | |
1335 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_max) - 1); | |
63adc6fb | 1336 | if (len < 0) |
222f1806 | 1337 | return len; |
63adc6fb | 1338 | |
222f1806 | 1339 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1340 | return -EFAULT; |
222f1806 LC |
1341 | buf[len] = 0; |
1342 | if (strcmp(buf, pkt_dev->src_max) != 0) { | |
1343 | memset(pkt_dev->src_max, 0, sizeof(pkt_dev->src_max)); | |
1344 | strncpy(pkt_dev->src_max, buf, len); | |
1345 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
1346 | pkt_dev->cur_saddr = pkt_dev->saddr_max; | |
1347 | } | |
1348 | if (debug) | |
25a8b254 | 1349 | printk(KERN_DEBUG "pktgen: src_max set to: %s\n", |
222f1806 | 1350 | pkt_dev->src_max); |
1da177e4 LT |
1351 | i += len; |
1352 | sprintf(pg_result, "OK: src_max=%s", pkt_dev->src_max); | |
1353 | return count; | |
1354 | } | |
1355 | if (!strcmp(name, "dst_mac")) { | |
1356 | char *v = valstr; | |
f404e9a6 | 1357 | unsigned char old_dmac[ETH_ALEN]; |
1da177e4 | 1358 | unsigned char *m = pkt_dev->dst_mac; |
f404e9a6 | 1359 | memcpy(old_dmac, pkt_dev->dst_mac, ETH_ALEN); |
222f1806 | 1360 | |
1da177e4 | 1361 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
63adc6fb | 1362 | if (len < 0) |
222f1806 | 1363 | return len; |
63adc6fb | 1364 | |
1da177e4 | 1365 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1366 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1367 | return -EFAULT; |
1368 | i += len; | |
1369 | ||
222f1806 | 1370 | for (*m = 0; *v && m < pkt_dev->dst_mac + 6; v++) { |
1da177e4 LT |
1371 | if (*v >= '0' && *v <= '9') { |
1372 | *m *= 16; | |
1373 | *m += *v - '0'; | |
1374 | } | |
1375 | if (*v >= 'A' && *v <= 'F') { | |
1376 | *m *= 16; | |
1377 | *m += *v - 'A' + 10; | |
1378 | } | |
1379 | if (*v >= 'a' && *v <= 'f') { | |
1380 | *m *= 16; | |
1381 | *m += *v - 'a' + 10; | |
1382 | } | |
1383 | if (*v == ':') { | |
1384 | m++; | |
1385 | *m = 0; | |
1386 | } | |
1387 | } | |
1388 | ||
1389 | /* Set up Dest MAC */ | |
f404e9a6 KK |
1390 | if (compare_ether_addr(old_dmac, pkt_dev->dst_mac)) |
1391 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); | |
222f1806 | 1392 | |
1da177e4 LT |
1393 | sprintf(pg_result, "OK: dstmac"); |
1394 | return count; | |
1395 | } | |
1396 | if (!strcmp(name, "src_mac")) { | |
1397 | char *v = valstr; | |
ce5d0b47 | 1398 | unsigned char old_smac[ETH_ALEN]; |
1da177e4 LT |
1399 | unsigned char *m = pkt_dev->src_mac; |
1400 | ||
ce5d0b47 AR |
1401 | memcpy(old_smac, pkt_dev->src_mac, ETH_ALEN); |
1402 | ||
1da177e4 | 1403 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
63adc6fb | 1404 | if (len < 0) |
222f1806 | 1405 | return len; |
63adc6fb | 1406 | |
1da177e4 | 1407 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1408 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1409 | return -EFAULT; |
1410 | i += len; | |
1411 | ||
222f1806 | 1412 | for (*m = 0; *v && m < pkt_dev->src_mac + 6; v++) { |
1da177e4 LT |
1413 | if (*v >= '0' && *v <= '9') { |
1414 | *m *= 16; | |
1415 | *m += *v - '0'; | |
1416 | } | |
1417 | if (*v >= 'A' && *v <= 'F') { | |
1418 | *m *= 16; | |
1419 | *m += *v - 'A' + 10; | |
1420 | } | |
1421 | if (*v >= 'a' && *v <= 'f') { | |
1422 | *m *= 16; | |
1423 | *m += *v - 'a' + 10; | |
1424 | } | |
1425 | if (*v == ':') { | |
1426 | m++; | |
1427 | *m = 0; | |
1428 | } | |
222f1806 | 1429 | } |
1da177e4 | 1430 | |
ce5d0b47 AR |
1431 | /* Set up Src MAC */ |
1432 | if (compare_ether_addr(old_smac, pkt_dev->src_mac)) | |
1433 | memcpy(&(pkt_dev->hh[6]), pkt_dev->src_mac, ETH_ALEN); | |
1434 | ||
222f1806 | 1435 | sprintf(pg_result, "OK: srcmac"); |
1da177e4 LT |
1436 | return count; |
1437 | } | |
1438 | ||
222f1806 LC |
1439 | if (!strcmp(name, "clear_counters")) { |
1440 | pktgen_clear_counters(pkt_dev); | |
1441 | sprintf(pg_result, "OK: Clearing counters.\n"); | |
1442 | return count; | |
1443 | } | |
1da177e4 LT |
1444 | |
1445 | if (!strcmp(name, "flows")) { | |
1446 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1447 | if (len < 0) |
222f1806 | 1448 | return len; |
63adc6fb | 1449 | |
1da177e4 LT |
1450 | i += len; |
1451 | if (value > MAX_CFLOWS) | |
1452 | value = MAX_CFLOWS; | |
1453 | ||
1454 | pkt_dev->cflows = value; | |
1455 | sprintf(pg_result, "OK: flows=%u", pkt_dev->cflows); | |
1456 | return count; | |
1457 | } | |
1458 | ||
1459 | if (!strcmp(name, "flowlen")) { | |
1460 | len = num_arg(&user_buffer[i], 10, &value); | |
63adc6fb | 1461 | if (len < 0) |
222f1806 | 1462 | return len; |
63adc6fb | 1463 | |
1da177e4 LT |
1464 | i += len; |
1465 | pkt_dev->lflow = value; | |
1466 | sprintf(pg_result, "OK: flowlen=%u", pkt_dev->lflow); | |
1467 | return count; | |
1468 | } | |
222f1806 | 1469 | |
45b270f8 RO |
1470 | if (!strcmp(name, "queue_map_min")) { |
1471 | len = num_arg(&user_buffer[i], 5, &value); | |
63adc6fb | 1472 | if (len < 0) |
45b270f8 | 1473 | return len; |
63adc6fb | 1474 | |
45b270f8 RO |
1475 | i += len; |
1476 | pkt_dev->queue_map_min = value; | |
1477 | sprintf(pg_result, "OK: queue_map_min=%u", pkt_dev->queue_map_min); | |
1478 | return count; | |
1479 | } | |
1480 | ||
1481 | if (!strcmp(name, "queue_map_max")) { | |
1482 | len = num_arg(&user_buffer[i], 5, &value); | |
63adc6fb | 1483 | if (len < 0) |
45b270f8 | 1484 | return len; |
63adc6fb | 1485 | |
45b270f8 RO |
1486 | i += len; |
1487 | pkt_dev->queue_map_max = value; | |
1488 | sprintf(pg_result, "OK: queue_map_max=%u", pkt_dev->queue_map_max); | |
1489 | return count; | |
1490 | } | |
1491 | ||
ca6549af | 1492 | if (!strcmp(name, "mpls")) { |
cfcabdcc SH |
1493 | unsigned n, cnt; |
1494 | ||
ca6549af | 1495 | len = get_labels(&user_buffer[i], pkt_dev); |
cfcabdcc SH |
1496 | if (len < 0) |
1497 | return len; | |
ca6549af | 1498 | i += len; |
cfcabdcc | 1499 | cnt = sprintf(pg_result, "OK: mpls="); |
e71a4783 | 1500 | for (n = 0; n < pkt_dev->nr_labels; n++) |
cfcabdcc SH |
1501 | cnt += sprintf(pg_result + cnt, |
1502 | "%08x%s", ntohl(pkt_dev->labels[n]), | |
1503 | n == pkt_dev->nr_labels-1 ? "" : ","); | |
34954ddc FF |
1504 | |
1505 | if (pkt_dev->nr_labels && pkt_dev->vlan_id != 0xffff) { | |
1506 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1507 | pkt_dev->svlan_id = 0xffff; | |
1508 | ||
1509 | if (debug) | |
25a8b254 | 1510 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN auto turned off\n"); |
34954ddc FF |
1511 | } |
1512 | return count; | |
1513 | } | |
1514 | ||
1515 | if (!strcmp(name, "vlan_id")) { | |
1516 | len = num_arg(&user_buffer[i], 4, &value); | |
63adc6fb | 1517 | if (len < 0) |
34954ddc | 1518 | return len; |
63adc6fb | 1519 | |
34954ddc FF |
1520 | i += len; |
1521 | if (value <= 4095) { | |
1522 | pkt_dev->vlan_id = value; /* turn on VLAN */ | |
1523 | ||
1524 | if (debug) | |
25a8b254 | 1525 | printk(KERN_DEBUG "pktgen: VLAN turned on\n"); |
34954ddc FF |
1526 | |
1527 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1528 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1529 | |
1530 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1531 | sprintf(pg_result, "OK: vlan_id=%u", pkt_dev->vlan_id); | |
1532 | } else { | |
1533 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1534 | pkt_dev->svlan_id = 0xffff; | |
1535 | ||
1536 | if (debug) | |
25a8b254 | 1537 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1538 | } |
1539 | return count; | |
1540 | } | |
1541 | ||
1542 | if (!strcmp(name, "vlan_p")) { | |
1543 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1544 | if (len < 0) |
34954ddc | 1545 | return len; |
63adc6fb | 1546 | |
34954ddc FF |
1547 | i += len; |
1548 | if ((value <= 7) && (pkt_dev->vlan_id != 0xffff)) { | |
1549 | pkt_dev->vlan_p = value; | |
1550 | sprintf(pg_result, "OK: vlan_p=%u", pkt_dev->vlan_p); | |
1551 | } else { | |
1552 | sprintf(pg_result, "ERROR: vlan_p must be 0-7"); | |
1553 | } | |
1554 | return count; | |
1555 | } | |
1556 | ||
1557 | if (!strcmp(name, "vlan_cfi")) { | |
1558 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1559 | if (len < 0) |
34954ddc | 1560 | return len; |
63adc6fb | 1561 | |
34954ddc FF |
1562 | i += len; |
1563 | if ((value <= 1) && (pkt_dev->vlan_id != 0xffff)) { | |
1564 | pkt_dev->vlan_cfi = value; | |
1565 | sprintf(pg_result, "OK: vlan_cfi=%u", pkt_dev->vlan_cfi); | |
1566 | } else { | |
1567 | sprintf(pg_result, "ERROR: vlan_cfi must be 0-1"); | |
1568 | } | |
1569 | return count; | |
1570 | } | |
1571 | ||
1572 | if (!strcmp(name, "svlan_id")) { | |
1573 | len = num_arg(&user_buffer[i], 4, &value); | |
63adc6fb | 1574 | if (len < 0) |
34954ddc | 1575 | return len; |
63adc6fb | 1576 | |
34954ddc FF |
1577 | i += len; |
1578 | if ((value <= 4095) && ((pkt_dev->vlan_id != 0xffff))) { | |
1579 | pkt_dev->svlan_id = value; /* turn on SVLAN */ | |
1580 | ||
1581 | if (debug) | |
25a8b254 | 1582 | printk(KERN_DEBUG "pktgen: SVLAN turned on\n"); |
34954ddc FF |
1583 | |
1584 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1585 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1586 | |
1587 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1588 | sprintf(pg_result, "OK: svlan_id=%u", pkt_dev->svlan_id); | |
1589 | } else { | |
1590 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1591 | pkt_dev->svlan_id = 0xffff; | |
1592 | ||
1593 | if (debug) | |
25a8b254 | 1594 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1595 | } |
1596 | return count; | |
1597 | } | |
1598 | ||
1599 | if (!strcmp(name, "svlan_p")) { | |
1600 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1601 | if (len < 0) |
34954ddc | 1602 | return len; |
63adc6fb | 1603 | |
34954ddc FF |
1604 | i += len; |
1605 | if ((value <= 7) && (pkt_dev->svlan_id != 0xffff)) { | |
1606 | pkt_dev->svlan_p = value; | |
1607 | sprintf(pg_result, "OK: svlan_p=%u", pkt_dev->svlan_p); | |
1608 | } else { | |
1609 | sprintf(pg_result, "ERROR: svlan_p must be 0-7"); | |
1610 | } | |
1611 | return count; | |
1612 | } | |
1613 | ||
1614 | if (!strcmp(name, "svlan_cfi")) { | |
1615 | len = num_arg(&user_buffer[i], 1, &value); | |
63adc6fb | 1616 | if (len < 0) |
34954ddc | 1617 | return len; |
63adc6fb | 1618 | |
34954ddc FF |
1619 | i += len; |
1620 | if ((value <= 1) && (pkt_dev->svlan_id != 0xffff)) { | |
1621 | pkt_dev->svlan_cfi = value; | |
1622 | sprintf(pg_result, "OK: svlan_cfi=%u", pkt_dev->svlan_cfi); | |
1623 | } else { | |
1624 | sprintf(pg_result, "ERROR: svlan_cfi must be 0-1"); | |
1625 | } | |
ca6549af SW |
1626 | return count; |
1627 | } | |
1628 | ||
1ca7768c FF |
1629 | if (!strcmp(name, "tos")) { |
1630 | __u32 tmp_value = 0; | |
1631 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
63adc6fb | 1632 | if (len < 0) |
1ca7768c | 1633 | return len; |
63adc6fb | 1634 | |
1ca7768c FF |
1635 | i += len; |
1636 | if (len == 2) { | |
1637 | pkt_dev->tos = tmp_value; | |
1638 | sprintf(pg_result, "OK: tos=0x%02x", pkt_dev->tos); | |
1639 | } else { | |
1640 | sprintf(pg_result, "ERROR: tos must be 00-ff"); | |
1641 | } | |
1642 | return count; | |
1643 | } | |
1644 | ||
1645 | if (!strcmp(name, "traffic_class")) { | |
1646 | __u32 tmp_value = 0; | |
1647 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
63adc6fb | 1648 | if (len < 0) |
1ca7768c | 1649 | return len; |
63adc6fb | 1650 | |
1ca7768c FF |
1651 | i += len; |
1652 | if (len == 2) { | |
1653 | pkt_dev->traffic_class = tmp_value; | |
1654 | sprintf(pg_result, "OK: traffic_class=0x%02x", pkt_dev->traffic_class); | |
1655 | } else { | |
1656 | sprintf(pg_result, "ERROR: traffic_class must be 00-ff"); | |
1657 | } | |
1658 | return count; | |
1659 | } | |
1660 | ||
1da177e4 LT |
1661 | sprintf(pkt_dev->result, "No such parameter \"%s\"", name); |
1662 | return -EINVAL; | |
1663 | } | |
1664 | ||
d50a6b56 | 1665 | static int pktgen_if_open(struct inode *inode, struct file *file) |
1da177e4 | 1666 | { |
d50a6b56 SH |
1667 | return single_open(file, pktgen_if_show, PDE(inode)->data); |
1668 | } | |
1da177e4 | 1669 | |
9a32144e | 1670 | static const struct file_operations pktgen_if_fops = { |
222f1806 LC |
1671 | .owner = THIS_MODULE, |
1672 | .open = pktgen_if_open, | |
1673 | .read = seq_read, | |
1674 | .llseek = seq_lseek, | |
1675 | .write = pktgen_if_write, | |
1676 | .release = single_release, | |
d50a6b56 | 1677 | }; |
1da177e4 | 1678 | |
d50a6b56 SH |
1679 | static int pktgen_thread_show(struct seq_file *seq, void *v) |
1680 | { | |
222f1806 | 1681 | struct pktgen_thread *t = seq->private; |
648fda74 | 1682 | const struct pktgen_dev *pkt_dev; |
d50a6b56 SH |
1683 | |
1684 | BUG_ON(!t); | |
1da177e4 | 1685 | |
222f1806 | 1686 | seq_printf(seq, "Running: "); |
1da177e4 | 1687 | |
222f1806 | 1688 | if_lock(t); |
c26a8016 | 1689 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1690 | if (pkt_dev->running) |
39df232f | 1691 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 | 1692 | |
222f1806 LC |
1693 | seq_printf(seq, "\nStopped: "); |
1694 | ||
c26a8016 | 1695 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1696 | if (!pkt_dev->running) |
39df232f | 1697 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 LT |
1698 | |
1699 | if (t->result[0]) | |
d50a6b56 | 1700 | seq_printf(seq, "\nResult: %s\n", t->result); |
1da177e4 | 1701 | else |
d50a6b56 | 1702 | seq_printf(seq, "\nResult: NA\n"); |
1da177e4 | 1703 | |
222f1806 | 1704 | if_unlock(t); |
1da177e4 | 1705 | |
d50a6b56 | 1706 | return 0; |
1da177e4 LT |
1707 | } |
1708 | ||
d50a6b56 | 1709 | static ssize_t pktgen_thread_write(struct file *file, |
222f1806 LC |
1710 | const char __user * user_buffer, |
1711 | size_t count, loff_t * offset) | |
1da177e4 | 1712 | { |
222f1806 LC |
1713 | struct seq_file *seq = (struct seq_file *)file->private_data; |
1714 | struct pktgen_thread *t = seq->private; | |
1da177e4 LT |
1715 | int i = 0, max, len, ret; |
1716 | char name[40]; | |
222f1806 | 1717 | char *pg_result; |
d50a6b56 | 1718 | |
1da177e4 | 1719 | if (count < 1) { |
222f1806 | 1720 | // sprintf(pg_result, "Wrong command format"); |
1da177e4 LT |
1721 | return -EINVAL; |
1722 | } | |
d50a6b56 | 1723 | |
1da177e4 | 1724 | max = count - i; |
222f1806 LC |
1725 | len = count_trail_chars(&user_buffer[i], max); |
1726 | if (len < 0) | |
d50a6b56 SH |
1727 | return len; |
1728 | ||
1da177e4 | 1729 | i += len; |
d50a6b56 | 1730 | |
1da177e4 LT |
1731 | /* Read variable name */ |
1732 | ||
1733 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 | 1734 | if (len < 0) |
d50a6b56 | 1735 | return len; |
222f1806 | 1736 | |
1da177e4 LT |
1737 | memset(name, 0, sizeof(name)); |
1738 | if (copy_from_user(name, &user_buffer[i], len)) | |
1739 | return -EFAULT; | |
1740 | i += len; | |
d50a6b56 | 1741 | |
222f1806 | 1742 | max = count - i; |
1da177e4 | 1743 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 | 1744 | if (len < 0) |
d50a6b56 SH |
1745 | return len; |
1746 | ||
1da177e4 LT |
1747 | i += len; |
1748 | ||
d50a6b56 | 1749 | if (debug) |
25a8b254 DM |
1750 | printk(KERN_DEBUG "pktgen: t=%s, count=%lu\n", |
1751 | name, (unsigned long)count); | |
1da177e4 | 1752 | |
222f1806 | 1753 | if (!t) { |
25a8b254 | 1754 | printk(KERN_ERR "pktgen: ERROR: No thread\n"); |
1da177e4 LT |
1755 | ret = -EINVAL; |
1756 | goto out; | |
1757 | } | |
1758 | ||
1759 | pg_result = &(t->result[0]); | |
1760 | ||
222f1806 LC |
1761 | if (!strcmp(name, "add_device")) { |
1762 | char f[32]; | |
1763 | memset(f, 0, 32); | |
1da177e4 | 1764 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1765 | if (len < 0) { |
1766 | ret = len; | |
1da177e4 LT |
1767 | goto out; |
1768 | } | |
222f1806 | 1769 | if (copy_from_user(f, &user_buffer[i], len)) |
1da177e4 LT |
1770 | return -EFAULT; |
1771 | i += len; | |
6146e6a4 | 1772 | mutex_lock(&pktgen_thread_lock); |
222f1806 | 1773 | pktgen_add_device(t, f); |
6146e6a4 | 1774 | mutex_unlock(&pktgen_thread_lock); |
222f1806 LC |
1775 | ret = count; |
1776 | sprintf(pg_result, "OK: add_device=%s", f); | |
1da177e4 LT |
1777 | goto out; |
1778 | } | |
1779 | ||
222f1806 | 1780 | if (!strcmp(name, "rem_device_all")) { |
6146e6a4 | 1781 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 | 1782 | t->control |= T_REMDEVALL; |
6146e6a4 | 1783 | mutex_unlock(&pktgen_thread_lock); |
222f1806 | 1784 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
1da177e4 | 1785 | ret = count; |
222f1806 | 1786 | sprintf(pg_result, "OK: rem_device_all"); |
1da177e4 LT |
1787 | goto out; |
1788 | } | |
1789 | ||
222f1806 | 1790 | if (!strcmp(name, "max_before_softirq")) { |
b163911f | 1791 | sprintf(pg_result, "OK: Note! max_before_softirq is obsoleted -- Do not use"); |
222f1806 | 1792 | ret = count; |
1da177e4 LT |
1793 | goto out; |
1794 | } | |
1795 | ||
1796 | ret = -EINVAL; | |
222f1806 | 1797 | out: |
1da177e4 LT |
1798 | return ret; |
1799 | } | |
1800 | ||
d50a6b56 | 1801 | static int pktgen_thread_open(struct inode *inode, struct file *file) |
1da177e4 | 1802 | { |
d50a6b56 | 1803 | return single_open(file, pktgen_thread_show, PDE(inode)->data); |
1da177e4 LT |
1804 | } |
1805 | ||
9a32144e | 1806 | static const struct file_operations pktgen_thread_fops = { |
222f1806 LC |
1807 | .owner = THIS_MODULE, |
1808 | .open = pktgen_thread_open, | |
1809 | .read = seq_read, | |
1810 | .llseek = seq_lseek, | |
1811 | .write = pktgen_thread_write, | |
1812 | .release = single_release, | |
d50a6b56 | 1813 | }; |
1da177e4 LT |
1814 | |
1815 | /* Think find or remove for NN */ | |
222f1806 | 1816 | static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove) |
1da177e4 LT |
1817 | { |
1818 | struct pktgen_thread *t; | |
1819 | struct pktgen_dev *pkt_dev = NULL; | |
1820 | ||
cdcdbe0b | 1821 | list_for_each_entry(t, &pktgen_threads, th_list) { |
1da177e4 LT |
1822 | pkt_dev = pktgen_find_dev(t, ifname); |
1823 | if (pkt_dev) { | |
222f1806 LC |
1824 | if (remove) { |
1825 | if_lock(t); | |
1826 | pkt_dev->removal_mark = 1; | |
1827 | t->control |= T_REMDEV; | |
1828 | if_unlock(t); | |
1829 | } | |
1da177e4 LT |
1830 | break; |
1831 | } | |
1da177e4 | 1832 | } |
222f1806 | 1833 | return pkt_dev; |
1da177e4 LT |
1834 | } |
1835 | ||
95ed63f7 AK |
1836 | /* |
1837 | * mark a device for removal | |
1838 | */ | |
39df232f | 1839 | static void pktgen_mark_device(const char *ifname) |
1da177e4 LT |
1840 | { |
1841 | struct pktgen_dev *pkt_dev = NULL; | |
95ed63f7 AK |
1842 | const int max_tries = 10, msec_per_try = 125; |
1843 | int i = 0; | |
95ed63f7 | 1844 | |
6146e6a4 | 1845 | mutex_lock(&pktgen_thread_lock); |
25c4e53a | 1846 | pr_debug("pktgen: pktgen_mark_device marking %s for removal\n", ifname); |
95ed63f7 | 1847 | |
222f1806 | 1848 | while (1) { |
95ed63f7 AK |
1849 | |
1850 | pkt_dev = __pktgen_NN_threads(ifname, REMOVE); | |
222f1806 LC |
1851 | if (pkt_dev == NULL) |
1852 | break; /* success */ | |
95ed63f7 | 1853 | |
6146e6a4 | 1854 | mutex_unlock(&pktgen_thread_lock); |
25c4e53a SH |
1855 | pr_debug("pktgen: pktgen_mark_device waiting for %s " |
1856 | "to disappear....\n", ifname); | |
95ed63f7 | 1857 | schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try)); |
6146e6a4 | 1858 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 AK |
1859 | |
1860 | if (++i >= max_tries) { | |
25a8b254 DM |
1861 | printk(KERN_ERR "pktgen_mark_device: timed out after " |
1862 | "waiting %d msec for device %s to be removed\n", | |
222f1806 | 1863 | msec_per_try * i, ifname); |
95ed63f7 AK |
1864 | break; |
1865 | } | |
1866 | ||
1867 | } | |
1868 | ||
6146e6a4 | 1869 | mutex_unlock(&pktgen_thread_lock); |
39df232f | 1870 | } |
95ed63f7 | 1871 | |
39df232f SH |
1872 | static void pktgen_change_name(struct net_device *dev) |
1873 | { | |
1874 | struct pktgen_thread *t; | |
1875 | ||
1876 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1877 | struct pktgen_dev *pkt_dev; | |
1878 | ||
1879 | list_for_each_entry(pkt_dev, &t->if_list, list) { | |
1880 | if (pkt_dev->odev != dev) | |
1881 | continue; | |
1882 | ||
1883 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1884 | ||
2975315b AD |
1885 | pkt_dev->entry = proc_create_data(dev->name, 0600, |
1886 | pg_proc_dir, | |
1887 | &pktgen_if_fops, | |
1888 | pkt_dev); | |
39df232f SH |
1889 | if (!pkt_dev->entry) |
1890 | printk(KERN_ERR "pktgen: can't move proc " | |
1891 | " entry for '%s'\n", dev->name); | |
1892 | break; | |
1893 | } | |
1894 | } | |
1da177e4 LT |
1895 | } |
1896 | ||
222f1806 LC |
1897 | static int pktgen_device_event(struct notifier_block *unused, |
1898 | unsigned long event, void *ptr) | |
1da177e4 | 1899 | { |
39df232f | 1900 | struct net_device *dev = ptr; |
1da177e4 | 1901 | |
721499e8 | 1902 | if (!net_eq(dev_net(dev), &init_net)) |
e9dc8653 EB |
1903 | return NOTIFY_DONE; |
1904 | ||
1da177e4 LT |
1905 | /* It is OK that we do not hold the group lock right now, |
1906 | * as we run under the RTNL lock. | |
1907 | */ | |
1908 | ||
1909 | switch (event) { | |
39df232f SH |
1910 | case NETDEV_CHANGENAME: |
1911 | pktgen_change_name(dev); | |
1da177e4 | 1912 | break; |
222f1806 | 1913 | |
1da177e4 | 1914 | case NETDEV_UNREGISTER: |
222f1806 | 1915 | pktgen_mark_device(dev->name); |
1da177e4 | 1916 | break; |
3ff50b79 | 1917 | } |
1da177e4 LT |
1918 | |
1919 | return NOTIFY_DONE; | |
1920 | } | |
1921 | ||
63adc6fb SH |
1922 | static struct net_device *pktgen_dev_get_by_name(struct pktgen_dev *pkt_dev, |
1923 | const char *ifname) | |
e6fce5b9 RO |
1924 | { |
1925 | char b[IFNAMSIZ+5]; | |
1926 | int i = 0; | |
1927 | ||
63adc6fb SH |
1928 | for (i = 0; ifname[i] != '@'; i++) { |
1929 | if (i == IFNAMSIZ) | |
e6fce5b9 RO |
1930 | break; |
1931 | ||
1932 | b[i] = ifname[i]; | |
1933 | } | |
1934 | b[i] = 0; | |
1935 | ||
1936 | return dev_get_by_name(&init_net, b); | |
1937 | } | |
1938 | ||
1939 | ||
1da177e4 LT |
1940 | /* Associate pktgen_dev with a device. */ |
1941 | ||
39df232f | 1942 | static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname) |
222f1806 | 1943 | { |
1da177e4 | 1944 | struct net_device *odev; |
39df232f | 1945 | int err; |
1da177e4 LT |
1946 | |
1947 | /* Clean old setups */ | |
1da177e4 LT |
1948 | if (pkt_dev->odev) { |
1949 | dev_put(pkt_dev->odev); | |
222f1806 LC |
1950 | pkt_dev->odev = NULL; |
1951 | } | |
1da177e4 | 1952 | |
e6fce5b9 | 1953 | odev = pktgen_dev_get_by_name(pkt_dev, ifname); |
1da177e4 | 1954 | if (!odev) { |
25a8b254 | 1955 | printk(KERN_ERR "pktgen: no such netdevice: \"%s\"\n", ifname); |
39df232f | 1956 | return -ENODEV; |
1da177e4 | 1957 | } |
39df232f | 1958 | |
1da177e4 | 1959 | if (odev->type != ARPHRD_ETHER) { |
25a8b254 | 1960 | printk(KERN_ERR "pktgen: not an ethernet device: \"%s\"\n", ifname); |
39df232f SH |
1961 | err = -EINVAL; |
1962 | } else if (!netif_running(odev)) { | |
25a8b254 | 1963 | printk(KERN_ERR "pktgen: device is down: \"%s\"\n", ifname); |
39df232f SH |
1964 | err = -ENETDOWN; |
1965 | } else { | |
1966 | pkt_dev->odev = odev; | |
1967 | return 0; | |
1da177e4 | 1968 | } |
1da177e4 | 1969 | |
1da177e4 | 1970 | dev_put(odev); |
39df232f | 1971 | return err; |
1da177e4 LT |
1972 | } |
1973 | ||
1974 | /* Read pkt_dev from the interface and set up internal pktgen_dev | |
1975 | * structure to have the right information to create/send packets | |
1976 | */ | |
1977 | static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) | |
1978 | { | |
64c00d81 AG |
1979 | int ntxq; |
1980 | ||
222f1806 | 1981 | if (!pkt_dev->odev) { |
25a8b254 DM |
1982 | printk(KERN_ERR "pktgen: ERROR: pkt_dev->odev == NULL in " |
1983 | "setup_inject.\n"); | |
222f1806 LC |
1984 | sprintf(pkt_dev->result, |
1985 | "ERROR: pkt_dev->odev == NULL in setup_inject.\n"); | |
1986 | return; | |
1987 | } | |
1988 | ||
64c00d81 AG |
1989 | /* make sure that we don't pick a non-existing transmit queue */ |
1990 | ntxq = pkt_dev->odev->real_num_tx_queues; | |
bfdbc0ac | 1991 | |
64c00d81 AG |
1992 | if (ntxq <= pkt_dev->queue_map_min) { |
1993 | printk(KERN_WARNING "pktgen: WARNING: Requested " | |
88271660 JB |
1994 | "queue_map_min (zero-based) (%d) exceeds valid range " |
1995 | "[0 - %d] for (%d) queues on %s, resetting\n", | |
63adc6fb | 1996 | pkt_dev->queue_map_min, (ntxq ?: 1) - 1, ntxq, |
88271660 | 1997 | pkt_dev->odev->name); |
64c00d81 AG |
1998 | pkt_dev->queue_map_min = ntxq - 1; |
1999 | } | |
88271660 | 2000 | if (pkt_dev->queue_map_max >= ntxq) { |
64c00d81 | 2001 | printk(KERN_WARNING "pktgen: WARNING: Requested " |
88271660 JB |
2002 | "queue_map_max (zero-based) (%d) exceeds valid range " |
2003 | "[0 - %d] for (%d) queues on %s, resetting\n", | |
63adc6fb | 2004 | pkt_dev->queue_map_max, (ntxq ?: 1) - 1, ntxq, |
88271660 | 2005 | pkt_dev->odev->name); |
64c00d81 AG |
2006 | pkt_dev->queue_map_max = ntxq - 1; |
2007 | } | |
2008 | ||
222f1806 | 2009 | /* Default to the interface's mac if not explicitly set. */ |
1da177e4 | 2010 | |
f404e9a6 | 2011 | if (is_zero_ether_addr(pkt_dev->src_mac)) |
222f1806 | 2012 | memcpy(&(pkt_dev->hh[6]), pkt_dev->odev->dev_addr, ETH_ALEN); |
1da177e4 | 2013 | |
222f1806 | 2014 | /* Set up Dest MAC */ |
f404e9a6 | 2015 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); |
1da177e4 | 2016 | |
222f1806 LC |
2017 | /* Set up pkt size */ |
2018 | pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size; | |
2019 | ||
2020 | if (pkt_dev->flags & F_IPV6) { | |
1da177e4 | 2021 | /* |
4ec93edb | 2022 | * Skip this automatic address setting until locks or functions |
1da177e4 LT |
2023 | * gets exported |
2024 | */ | |
2025 | ||
2026 | #ifdef NOTNOW | |
222f1806 | 2027 | int i, set = 0, err = 1; |
1da177e4 LT |
2028 | struct inet6_dev *idev; |
2029 | ||
222f1806 LC |
2030 | for (i = 0; i < IN6_ADDR_HSIZE; i++) |
2031 | if (pkt_dev->cur_in6_saddr.s6_addr[i]) { | |
1da177e4 LT |
2032 | set = 1; |
2033 | break; | |
2034 | } | |
2035 | ||
222f1806 LC |
2036 | if (!set) { |
2037 | ||
1da177e4 LT |
2038 | /* |
2039 | * Use linklevel address if unconfigured. | |
2040 | * | |
2041 | * use ipv6_get_lladdr if/when it's get exported | |
2042 | */ | |
2043 | ||
8814c4b5 | 2044 | rcu_read_lock(); |
63adc6fb SH |
2045 | idev = __in6_dev_get(pkt_dev->odev); |
2046 | if (idev) { | |
1da177e4 LT |
2047 | struct inet6_ifaddr *ifp; |
2048 | ||
2049 | read_lock_bh(&idev->lock); | |
222f1806 LC |
2050 | for (ifp = idev->addr_list; ifp; |
2051 | ifp = ifp->if_next) { | |
2052 | if (ifp->scope == IFA_LINK | |
2053 | && !(ifp-> | |
2054 | flags & IFA_F_TENTATIVE)) { | |
2055 | ipv6_addr_copy(&pkt_dev-> | |
2056 | cur_in6_saddr, | |
2057 | &ifp->addr); | |
1da177e4 LT |
2058 | err = 0; |
2059 | break; | |
2060 | } | |
2061 | } | |
2062 | read_unlock_bh(&idev->lock); | |
2063 | } | |
8814c4b5 | 2064 | rcu_read_unlock(); |
222f1806 | 2065 | if (err) |
25a8b254 DM |
2066 | printk(KERN_ERR "pktgen: ERROR: IPv6 link " |
2067 | "address not availble.\n"); | |
1da177e4 LT |
2068 | } |
2069 | #endif | |
222f1806 | 2070 | } else { |
1da177e4 LT |
2071 | pkt_dev->saddr_min = 0; |
2072 | pkt_dev->saddr_max = 0; | |
2073 | if (strlen(pkt_dev->src_min) == 0) { | |
222f1806 LC |
2074 | |
2075 | struct in_device *in_dev; | |
1da177e4 LT |
2076 | |
2077 | rcu_read_lock(); | |
e5ed6399 | 2078 | in_dev = __in_dev_get_rcu(pkt_dev->odev); |
1da177e4 LT |
2079 | if (in_dev) { |
2080 | if (in_dev->ifa_list) { | |
222f1806 LC |
2081 | pkt_dev->saddr_min = |
2082 | in_dev->ifa_list->ifa_address; | |
1da177e4 LT |
2083 | pkt_dev->saddr_max = pkt_dev->saddr_min; |
2084 | } | |
1da177e4 LT |
2085 | } |
2086 | rcu_read_unlock(); | |
222f1806 | 2087 | } else { |
1da177e4 LT |
2088 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); |
2089 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
2090 | } | |
2091 | ||
2092 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
2093 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
2094 | } | |
222f1806 LC |
2095 | /* Initialize current values. */ |
2096 | pkt_dev->cur_dst_mac_offset = 0; | |
2097 | pkt_dev->cur_src_mac_offset = 0; | |
2098 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
2099 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
2100 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; | |
2101 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
1da177e4 LT |
2102 | pkt_dev->nflows = 0; |
2103 | } | |
2104 | ||
fd29cf72 SH |
2105 | |
2106 | static void spin(struct pktgen_dev *pkt_dev, ktime_t spin_until) | |
2107 | { | |
2bc481cf SH |
2108 | ktime_t start; |
2109 | s32 remaining; | |
2110 | struct hrtimer_sleeper t; | |
2111 | ||
2112 | hrtimer_init_on_stack(&t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); | |
2113 | hrtimer_set_expires(&t.timer, spin_until); | |
2114 | ||
2115 | remaining = ktime_to_us(hrtimer_expires_remaining(&t.timer)); | |
2116 | if (remaining <= 0) | |
2117 | return; | |
2118 | ||
2119 | start = ktime_now(); | |
2120 | if (remaining < 100) | |
2121 | udelay(remaining); /* really small just spin */ | |
2122 | else { | |
2123 | /* see do_nanosleep */ | |
2124 | hrtimer_init_sleeper(&t, current); | |
2125 | do { | |
2126 | set_current_state(TASK_INTERRUPTIBLE); | |
2127 | hrtimer_start_expires(&t.timer, HRTIMER_MODE_ABS); | |
2128 | if (!hrtimer_active(&t.timer)) | |
2129 | t.task = NULL; | |
2130 | ||
2131 | if (likely(t.task)) | |
1da177e4 | 2132 | schedule(); |
1da177e4 | 2133 | |
2bc481cf SH |
2134 | hrtimer_cancel(&t.timer); |
2135 | } while (t.task && pkt_dev->running && !signal_pending(current)); | |
2136 | __set_current_state(TASK_RUNNING); | |
1da177e4 | 2137 | } |
2bc481cf | 2138 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), start)); |
1da177e4 LT |
2139 | } |
2140 | ||
16dab72f JHS |
2141 | static inline void set_pkt_overhead(struct pktgen_dev *pkt_dev) |
2142 | { | |
a553e4a6 | 2143 | pkt_dev->pkt_overhead = 0; |
16dab72f JHS |
2144 | pkt_dev->pkt_overhead += pkt_dev->nr_labels*sizeof(u32); |
2145 | pkt_dev->pkt_overhead += VLAN_TAG_SIZE(pkt_dev); | |
2146 | pkt_dev->pkt_overhead += SVLAN_TAG_SIZE(pkt_dev); | |
2147 | } | |
2148 | ||
648fda74 | 2149 | static inline int f_seen(const struct pktgen_dev *pkt_dev, int flow) |
007a531b | 2150 | { |
648fda74 | 2151 | return !!(pkt_dev->flows[flow].flags & F_INIT); |
007a531b JHS |
2152 | } |
2153 | ||
2154 | static inline int f_pick(struct pktgen_dev *pkt_dev) | |
2155 | { | |
2156 | int flow = pkt_dev->curfl; | |
2157 | ||
2158 | if (pkt_dev->flags & F_FLOW_SEQ) { | |
2159 | if (pkt_dev->flows[flow].count >= pkt_dev->lflow) { | |
2160 | /* reset time */ | |
2161 | pkt_dev->flows[flow].count = 0; | |
1211a645 | 2162 | pkt_dev->flows[flow].flags = 0; |
007a531b JHS |
2163 | pkt_dev->curfl += 1; |
2164 | if (pkt_dev->curfl >= pkt_dev->cflows) | |
2165 | pkt_dev->curfl = 0; /*reset */ | |
2166 | } | |
2167 | } else { | |
2168 | flow = random32() % pkt_dev->cflows; | |
1211a645 | 2169 | pkt_dev->curfl = flow; |
007a531b | 2170 | |
1211a645 | 2171 | if (pkt_dev->flows[flow].count > pkt_dev->lflow) { |
007a531b | 2172 | pkt_dev->flows[flow].count = 0; |
1211a645 RO |
2173 | pkt_dev->flows[flow].flags = 0; |
2174 | } | |
007a531b JHS |
2175 | } |
2176 | ||
2177 | return pkt_dev->curfl; | |
2178 | } | |
2179 | ||
a553e4a6 JHS |
2180 | |
2181 | #ifdef CONFIG_XFRM | |
2182 | /* If there was already an IPSEC SA, we keep it as is, else | |
2183 | * we go look for it ... | |
2184 | */ | |
fea1ab0f | 2185 | static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow) |
a553e4a6 JHS |
2186 | { |
2187 | struct xfrm_state *x = pkt_dev->flows[flow].x; | |
2188 | if (!x) { | |
2189 | /*slow path: we dont already have xfrm_state*/ | |
5447c5e4 AD |
2190 | x = xfrm_stateonly_find(&init_net, |
2191 | (xfrm_address_t *)&pkt_dev->cur_daddr, | |
a553e4a6 JHS |
2192 | (xfrm_address_t *)&pkt_dev->cur_saddr, |
2193 | AF_INET, | |
2194 | pkt_dev->ipsmode, | |
2195 | pkt_dev->ipsproto, 0); | |
2196 | if (x) { | |
2197 | pkt_dev->flows[flow].x = x; | |
2198 | set_pkt_overhead(pkt_dev); | |
63adc6fb | 2199 | pkt_dev->pkt_overhead += x->props.header_len; |
a553e4a6 JHS |
2200 | } |
2201 | ||
2202 | } | |
2203 | } | |
2204 | #endif | |
fd2ea0a7 DM |
2205 | static void set_cur_queue_map(struct pktgen_dev *pkt_dev) |
2206 | { | |
e6fce5b9 RO |
2207 | |
2208 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) | |
2209 | pkt_dev->cur_queue_map = smp_processor_id(); | |
2210 | ||
2211 | else if (pkt_dev->queue_map_min < pkt_dev->queue_map_max) { | |
fd2ea0a7 DM |
2212 | __u16 t; |
2213 | if (pkt_dev->flags & F_QUEUE_MAP_RND) { | |
2214 | t = random32() % | |
2215 | (pkt_dev->queue_map_max - | |
2216 | pkt_dev->queue_map_min + 1) | |
2217 | + pkt_dev->queue_map_min; | |
2218 | } else { | |
2219 | t = pkt_dev->cur_queue_map + 1; | |
2220 | if (t > pkt_dev->queue_map_max) | |
2221 | t = pkt_dev->queue_map_min; | |
2222 | } | |
2223 | pkt_dev->cur_queue_map = t; | |
2224 | } | |
bfdbc0ac | 2225 | pkt_dev->cur_queue_map = pkt_dev->cur_queue_map % pkt_dev->odev->real_num_tx_queues; |
fd2ea0a7 DM |
2226 | } |
2227 | ||
1da177e4 LT |
2228 | /* Increment/randomize headers according to flags and current values |
2229 | * for IP src/dest, UDP src/dst port, MAC-Addr src/dst | |
2230 | */ | |
222f1806 LC |
2231 | static void mod_cur_headers(struct pktgen_dev *pkt_dev) |
2232 | { | |
2233 | __u32 imn; | |
2234 | __u32 imx; | |
2235 | int flow = 0; | |
1da177e4 | 2236 | |
007a531b JHS |
2237 | if (pkt_dev->cflows) |
2238 | flow = f_pick(pkt_dev); | |
1da177e4 LT |
2239 | |
2240 | /* Deal with source MAC */ | |
222f1806 LC |
2241 | if (pkt_dev->src_mac_count > 1) { |
2242 | __u32 mc; | |
2243 | __u32 tmp; | |
2244 | ||
2245 | if (pkt_dev->flags & F_MACSRC_RND) | |
5fa6fc76 | 2246 | mc = random32() % pkt_dev->src_mac_count; |
222f1806 LC |
2247 | else { |
2248 | mc = pkt_dev->cur_src_mac_offset++; | |
ff2a79a5 | 2249 | if (pkt_dev->cur_src_mac_offset >= |
222f1806 LC |
2250 | pkt_dev->src_mac_count) |
2251 | pkt_dev->cur_src_mac_offset = 0; | |
2252 | } | |
2253 | ||
2254 | tmp = pkt_dev->src_mac[5] + (mc & 0xFF); | |
2255 | pkt_dev->hh[11] = tmp; | |
2256 | tmp = (pkt_dev->src_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2257 | pkt_dev->hh[10] = tmp; | |
2258 | tmp = (pkt_dev->src_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2259 | pkt_dev->hh[9] = tmp; | |
2260 | tmp = (pkt_dev->src_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2261 | pkt_dev->hh[8] = tmp; | |
2262 | tmp = (pkt_dev->src_mac[1] + (tmp >> 8)); | |
2263 | pkt_dev->hh[7] = tmp; | |
2264 | } | |
2265 | ||
2266 | /* Deal with Destination MAC */ | |
2267 | if (pkt_dev->dst_mac_count > 1) { | |
2268 | __u32 mc; | |
2269 | __u32 tmp; | |
2270 | ||
2271 | if (pkt_dev->flags & F_MACDST_RND) | |
5fa6fc76 | 2272 | mc = random32() % pkt_dev->dst_mac_count; |
222f1806 LC |
2273 | |
2274 | else { | |
2275 | mc = pkt_dev->cur_dst_mac_offset++; | |
ff2a79a5 | 2276 | if (pkt_dev->cur_dst_mac_offset >= |
222f1806 LC |
2277 | pkt_dev->dst_mac_count) { |
2278 | pkt_dev->cur_dst_mac_offset = 0; | |
2279 | } | |
2280 | } | |
2281 | ||
2282 | tmp = pkt_dev->dst_mac[5] + (mc & 0xFF); | |
2283 | pkt_dev->hh[5] = tmp; | |
2284 | tmp = (pkt_dev->dst_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2285 | pkt_dev->hh[4] = tmp; | |
2286 | tmp = (pkt_dev->dst_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2287 | pkt_dev->hh[3] = tmp; | |
2288 | tmp = (pkt_dev->dst_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2289 | pkt_dev->hh[2] = tmp; | |
2290 | tmp = (pkt_dev->dst_mac[1] + (tmp >> 8)); | |
2291 | pkt_dev->hh[1] = tmp; | |
2292 | } | |
2293 | ||
ca6549af SW |
2294 | if (pkt_dev->flags & F_MPLS_RND) { |
2295 | unsigned i; | |
e71a4783 | 2296 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
2297 | if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM) |
2298 | pkt_dev->labels[i] = MPLS_STACK_BOTTOM | | |
5fa6fc76 | 2299 | ((__force __be32)random32() & |
ca6549af SW |
2300 | htonl(0x000fffff)); |
2301 | } | |
2302 | ||
34954ddc | 2303 | if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) { |
5fa6fc76 | 2304 | pkt_dev->vlan_id = random32() & (4096-1); |
34954ddc FF |
2305 | } |
2306 | ||
2307 | if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) { | |
5fa6fc76 | 2308 | pkt_dev->svlan_id = random32() & (4096 - 1); |
34954ddc FF |
2309 | } |
2310 | ||
222f1806 LC |
2311 | if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) { |
2312 | if (pkt_dev->flags & F_UDPSRC_RND) | |
5fa6fc76 SH |
2313 | pkt_dev->cur_udp_src = random32() % |
2314 | (pkt_dev->udp_src_max - pkt_dev->udp_src_min) | |
2315 | + pkt_dev->udp_src_min; | |
222f1806 LC |
2316 | |
2317 | else { | |
1da177e4 LT |
2318 | pkt_dev->cur_udp_src++; |
2319 | if (pkt_dev->cur_udp_src >= pkt_dev->udp_src_max) | |
2320 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
222f1806 LC |
2321 | } |
2322 | } | |
2323 | ||
2324 | if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) { | |
2325 | if (pkt_dev->flags & F_UDPDST_RND) { | |
5fa6fc76 SH |
2326 | pkt_dev->cur_udp_dst = random32() % |
2327 | (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min) | |
2328 | + pkt_dev->udp_dst_min; | |
222f1806 | 2329 | } else { |
1da177e4 | 2330 | pkt_dev->cur_udp_dst++; |
222f1806 | 2331 | if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max) |
1da177e4 | 2332 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; |
222f1806 LC |
2333 | } |
2334 | } | |
1da177e4 LT |
2335 | |
2336 | if (!(pkt_dev->flags & F_IPV6)) { | |
2337 | ||
63adc6fb SH |
2338 | imn = ntohl(pkt_dev->saddr_min); |
2339 | imx = ntohl(pkt_dev->saddr_max); | |
2340 | if (imn < imx) { | |
1da177e4 | 2341 | __u32 t; |
222f1806 | 2342 | if (pkt_dev->flags & F_IPSRC_RND) |
5fa6fc76 | 2343 | t = random32() % (imx - imn) + imn; |
1da177e4 LT |
2344 | else { |
2345 | t = ntohl(pkt_dev->cur_saddr); | |
2346 | t++; | |
63adc6fb | 2347 | if (t > imx) |
1da177e4 | 2348 | t = imn; |
63adc6fb | 2349 | |
1da177e4 LT |
2350 | } |
2351 | pkt_dev->cur_saddr = htonl(t); | |
2352 | } | |
222f1806 | 2353 | |
007a531b | 2354 | if (pkt_dev->cflows && f_seen(pkt_dev, flow)) { |
1da177e4 LT |
2355 | pkt_dev->cur_daddr = pkt_dev->flows[flow].cur_daddr; |
2356 | } else { | |
252e3346 AV |
2357 | imn = ntohl(pkt_dev->daddr_min); |
2358 | imx = ntohl(pkt_dev->daddr_max); | |
2359 | if (imn < imx) { | |
1da177e4 | 2360 | __u32 t; |
252e3346 | 2361 | __be32 s; |
1da177e4 LT |
2362 | if (pkt_dev->flags & F_IPDST_RND) { |
2363 | ||
5fa6fc76 | 2364 | t = random32() % (imx - imn) + imn; |
252e3346 | 2365 | s = htonl(t); |
1da177e4 | 2366 | |
21cf2253 JP |
2367 | while (ipv4_is_loopback(s) || |
2368 | ipv4_is_multicast(s) || | |
1e637c74 | 2369 | ipv4_is_lbcast(s) || |
21cf2253 JP |
2370 | ipv4_is_zeronet(s) || |
2371 | ipv4_is_local_multicast(s)) { | |
5fa6fc76 | 2372 | t = random32() % (imx - imn) + imn; |
252e3346 | 2373 | s = htonl(t); |
1da177e4 | 2374 | } |
252e3346 AV |
2375 | pkt_dev->cur_daddr = s; |
2376 | } else { | |
1da177e4 LT |
2377 | t = ntohl(pkt_dev->cur_daddr); |
2378 | t++; | |
2379 | if (t > imx) { | |
2380 | t = imn; | |
2381 | } | |
2382 | pkt_dev->cur_daddr = htonl(t); | |
2383 | } | |
2384 | } | |
222f1806 | 2385 | if (pkt_dev->cflows) { |
007a531b | 2386 | pkt_dev->flows[flow].flags |= F_INIT; |
222f1806 LC |
2387 | pkt_dev->flows[flow].cur_daddr = |
2388 | pkt_dev->cur_daddr; | |
a553e4a6 JHS |
2389 | #ifdef CONFIG_XFRM |
2390 | if (pkt_dev->flags & F_IPSEC_ON) | |
2391 | get_ipsec_sa(pkt_dev, flow); | |
2392 | #endif | |
1da177e4 LT |
2393 | pkt_dev->nflows++; |
2394 | } | |
2395 | } | |
222f1806 LC |
2396 | } else { /* IPV6 * */ |
2397 | ||
2398 | if (pkt_dev->min_in6_daddr.s6_addr32[0] == 0 && | |
2399 | pkt_dev->min_in6_daddr.s6_addr32[1] == 0 && | |
2400 | pkt_dev->min_in6_daddr.s6_addr32[2] == 0 && | |
2401 | pkt_dev->min_in6_daddr.s6_addr32[3] == 0) ; | |
1da177e4 LT |
2402 | else { |
2403 | int i; | |
2404 | ||
2405 | /* Only random destinations yet */ | |
2406 | ||
222f1806 | 2407 | for (i = 0; i < 4; i++) { |
1da177e4 | 2408 | pkt_dev->cur_in6_daddr.s6_addr32[i] = |
5fa6fc76 | 2409 | (((__force __be32)random32() | |
222f1806 LC |
2410 | pkt_dev->min_in6_daddr.s6_addr32[i]) & |
2411 | pkt_dev->max_in6_daddr.s6_addr32[i]); | |
1da177e4 | 2412 | } |
222f1806 | 2413 | } |
1da177e4 LT |
2414 | } |
2415 | ||
222f1806 LC |
2416 | if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) { |
2417 | __u32 t; | |
2418 | if (pkt_dev->flags & F_TXSIZE_RND) { | |
5fa6fc76 SH |
2419 | t = random32() % |
2420 | (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size) | |
2421 | + pkt_dev->min_pkt_size; | |
222f1806 | 2422 | } else { |
1da177e4 | 2423 | t = pkt_dev->cur_pkt_size + 1; |
222f1806 | 2424 | if (t > pkt_dev->max_pkt_size) |
1da177e4 | 2425 | t = pkt_dev->min_pkt_size; |
222f1806 LC |
2426 | } |
2427 | pkt_dev->cur_pkt_size = t; | |
2428 | } | |
1da177e4 | 2429 | |
fd2ea0a7 | 2430 | set_cur_queue_map(pkt_dev); |
45b270f8 | 2431 | |
1da177e4 LT |
2432 | pkt_dev->flows[flow].count++; |
2433 | } | |
2434 | ||
a553e4a6 JHS |
2435 | |
2436 | #ifdef CONFIG_XFRM | |
2437 | static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev) | |
2438 | { | |
2439 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2440 | int err = 0; | |
2441 | struct iphdr *iph; | |
2442 | ||
2443 | if (!x) | |
2444 | return 0; | |
2445 | /* XXX: we dont support tunnel mode for now until | |
2446 | * we resolve the dst issue */ | |
2447 | if (x->props.mode != XFRM_MODE_TRANSPORT) | |
2448 | return 0; | |
2449 | ||
2450 | spin_lock(&x->lock); | |
2451 | iph = ip_hdr(skb); | |
2452 | ||
13996378 | 2453 | err = x->outer_mode->output(x, skb); |
a553e4a6 JHS |
2454 | if (err) |
2455 | goto error; | |
2456 | err = x->type->output(x, skb); | |
2457 | if (err) | |
2458 | goto error; | |
2459 | ||
63adc6fb | 2460 | x->curlft.bytes += skb->len; |
a553e4a6 | 2461 | x->curlft.packets++; |
a553e4a6 JHS |
2462 | error: |
2463 | spin_unlock(&x->lock); | |
2464 | return err; | |
2465 | } | |
2466 | ||
475ac1e4 | 2467 | static void free_SAs(struct pktgen_dev *pkt_dev) |
a553e4a6 JHS |
2468 | { |
2469 | if (pkt_dev->cflows) { | |
2470 | /* let go of the SAs if we have them */ | |
2471 | int i = 0; | |
5b5f792a | 2472 | for (; i < pkt_dev->cflows; i++) { |
a553e4a6 JHS |
2473 | struct xfrm_state *x = pkt_dev->flows[i].x; |
2474 | if (x) { | |
2475 | xfrm_state_put(x); | |
2476 | pkt_dev->flows[i].x = NULL; | |
2477 | } | |
2478 | } | |
2479 | } | |
2480 | } | |
2481 | ||
475ac1e4 | 2482 | static int process_ipsec(struct pktgen_dev *pkt_dev, |
a553e4a6 JHS |
2483 | struct sk_buff *skb, __be16 protocol) |
2484 | { | |
2485 | if (pkt_dev->flags & F_IPSEC_ON) { | |
2486 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2487 | int nhead = 0; | |
2488 | if (x) { | |
2489 | int ret; | |
2490 | __u8 *eth; | |
2491 | nhead = x->props.header_len - skb_headroom(skb); | |
63adc6fb | 2492 | if (nhead > 0) { |
a553e4a6 JHS |
2493 | ret = pskb_expand_head(skb, nhead, 0, GFP_ATOMIC); |
2494 | if (ret < 0) { | |
25a8b254 | 2495 | printk(KERN_ERR "Error expanding " |
63adc6fb | 2496 | "ipsec packet %d\n", ret); |
b4bb4ac8 | 2497 | goto err; |
a553e4a6 JHS |
2498 | } |
2499 | } | |
2500 | ||
2501 | /* ipsec is not expecting ll header */ | |
2502 | skb_pull(skb, ETH_HLEN); | |
2503 | ret = pktgen_output_ipsec(skb, pkt_dev); | |
2504 | if (ret) { | |
25a8b254 | 2505 | printk(KERN_ERR "Error creating ipsec " |
63adc6fb | 2506 | "packet %d\n", ret); |
b4bb4ac8 | 2507 | goto err; |
a553e4a6 JHS |
2508 | } |
2509 | /* restore ll */ | |
2510 | eth = (__u8 *) skb_push(skb, ETH_HLEN); | |
2511 | memcpy(eth, pkt_dev->hh, 12); | |
63adc6fb | 2512 | *(u16 *) ð[12] = protocol; |
a553e4a6 JHS |
2513 | } |
2514 | } | |
2515 | return 1; | |
b4bb4ac8 IJ |
2516 | err: |
2517 | kfree_skb(skb); | |
2518 | return 0; | |
a553e4a6 JHS |
2519 | } |
2520 | #endif | |
2521 | ||
ca6549af SW |
2522 | static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev) |
2523 | { | |
2524 | unsigned i; | |
63adc6fb | 2525 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af | 2526 | *mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM; |
63adc6fb | 2527 | |
ca6549af SW |
2528 | mpls--; |
2529 | *mpls |= MPLS_STACK_BOTTOM; | |
2530 | } | |
2531 | ||
0f37c605 AV |
2532 | static inline __be16 build_tci(unsigned int id, unsigned int cfi, |
2533 | unsigned int prio) | |
2534 | { | |
2535 | return htons(id | (cfi << 12) | (prio << 13)); | |
2536 | } | |
2537 | ||
222f1806 LC |
2538 | static struct sk_buff *fill_packet_ipv4(struct net_device *odev, |
2539 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2540 | { |
2541 | struct sk_buff *skb = NULL; | |
2542 | __u8 *eth; | |
2543 | struct udphdr *udph; | |
2544 | int datalen, iplen; | |
2545 | struct iphdr *iph; | |
222f1806 | 2546 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2547 | __be16 protocol = htons(ETH_P_IP); |
ca6549af | 2548 | __be32 *mpls; |
34954ddc FF |
2549 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2550 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2551 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2552 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2553 | u16 queue_map; |
ca6549af SW |
2554 | |
2555 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2556 | protocol = htons(ETH_P_MPLS_UC); |
222f1806 | 2557 | |
34954ddc | 2558 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2559 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2560 | |
64053bee RO |
2561 | /* Update any of the values, used when we're incrementing various |
2562 | * fields. | |
2563 | */ | |
fd2ea0a7 | 2564 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2565 | mod_cur_headers(pkt_dev); |
2566 | ||
7ac5459e | 2567 | datalen = (odev->hard_header_len + 16) & ~0xf; |
e470757d SH |
2568 | skb = __netdev_alloc_skb(odev, |
2569 | pkt_dev->cur_pkt_size + 64 | |
2570 | + datalen + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
1da177e4 LT |
2571 | if (!skb) { |
2572 | sprintf(pkt_dev->result, "No memory"); | |
2573 | return NULL; | |
2574 | } | |
2575 | ||
7ac5459e | 2576 | skb_reserve(skb, datalen); |
1da177e4 LT |
2577 | |
2578 | /* Reserve for ethernet and IP header */ | |
2579 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2580 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2581 | if (pkt_dev->nr_labels) | |
2582 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2583 | |
2584 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2585 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2586 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2587 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2588 | pkt_dev->svlan_cfi, | |
2589 | pkt_dev->svlan_p); | |
34954ddc | 2590 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2591 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2592 | } |
2593 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2594 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2595 | pkt_dev->vlan_cfi, | |
2596 | pkt_dev->vlan_p); | |
34954ddc | 2597 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2598 | *vlan_encapsulated_proto = htons(ETH_P_IP); |
34954ddc FF |
2599 | } |
2600 | ||
27a884dc | 2601 | skb->network_header = skb->tail; |
b0e380b1 | 2602 | skb->transport_header = skb->network_header + sizeof(struct iphdr); |
ddc7b8e3 | 2603 | skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2604 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
2605 | iph = ip_hdr(skb); |
2606 | udph = udp_hdr(skb); | |
1da177e4 | 2607 | |
1da177e4 | 2608 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2609 | *(__be16 *) & eth[12] = protocol; |
1da177e4 | 2610 | |
ca6549af SW |
2611 | /* Eth + IPh + UDPh + mpls */ |
2612 | datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 - | |
16dab72f | 2613 | pkt_dev->pkt_overhead; |
222f1806 | 2614 | if (datalen < sizeof(struct pktgen_hdr)) |
1da177e4 | 2615 | datalen = sizeof(struct pktgen_hdr); |
222f1806 | 2616 | |
1da177e4 LT |
2617 | udph->source = htons(pkt_dev->cur_udp_src); |
2618 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2619 | udph->len = htons(datalen + 8); /* DATA + udphdr */ |
2620 | udph->check = 0; /* No checksum */ | |
1da177e4 LT |
2621 | |
2622 | iph->ihl = 5; | |
2623 | iph->version = 4; | |
2624 | iph->ttl = 32; | |
1ca7768c | 2625 | iph->tos = pkt_dev->tos; |
222f1806 | 2626 | iph->protocol = IPPROTO_UDP; /* UDP */ |
1da177e4 LT |
2627 | iph->saddr = pkt_dev->cur_saddr; |
2628 | iph->daddr = pkt_dev->cur_daddr; | |
2629 | iph->frag_off = 0; | |
2630 | iplen = 20 + 8 + datalen; | |
2631 | iph->tot_len = htons(iplen); | |
2632 | iph->check = 0; | |
222f1806 | 2633 | iph->check = ip_fast_csum((void *)iph, iph->ihl); |
ca6549af | 2634 | skb->protocol = protocol; |
b0e380b1 | 2635 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2636 | pkt_dev->pkt_overhead); |
1da177e4 LT |
2637 | skb->dev = odev; |
2638 | skb->pkt_type = PACKET_HOST; | |
2639 | ||
222f1806 LC |
2640 | if (pkt_dev->nfrags <= 0) |
2641 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2642 | else { |
2643 | int frags = pkt_dev->nfrags; | |
2644 | int i; | |
2645 | ||
222f1806 LC |
2646 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2647 | ||
1da177e4 LT |
2648 | if (frags > MAX_SKB_FRAGS) |
2649 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
2650 | if (datalen > frags * PAGE_SIZE) { |
2651 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
2652 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
2653 | } |
2654 | ||
2655 | i = 0; | |
2656 | while (datalen > 0) { | |
2657 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
2658 | skb_shinfo(skb)->frags[i].page = page; | |
2659 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2660 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2661 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2662 | datalen -= skb_shinfo(skb)->frags[i].size; |
2663 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2664 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2665 | i++; | |
2666 | skb_shinfo(skb)->nr_frags = i; | |
2667 | } | |
2668 | ||
2669 | while (i < frags) { | |
2670 | int rem; | |
2671 | ||
2672 | if (i == 0) | |
2673 | break; | |
2674 | ||
2675 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
2676 | if (rem == 0) | |
2677 | break; | |
2678 | ||
2679 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
2680 | ||
222f1806 LC |
2681 | skb_shinfo(skb)->frags[i] = |
2682 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 2683 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
2684 | skb_shinfo(skb)->frags[i].page = |
2685 | skb_shinfo(skb)->frags[i - 1].page; | |
2686 | skb_shinfo(skb)->frags[i].page_offset += | |
2687 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
2688 | skb_shinfo(skb)->frags[i].size = rem; |
2689 | i++; | |
2690 | skb_shinfo(skb)->nr_frags = i; | |
2691 | } | |
2692 | } | |
2693 | ||
63adc6fb SH |
2694 | /* Stamp the time, and sequence number, |
2695 | * convert them to network byte order | |
2696 | */ | |
222f1806 LC |
2697 | if (pgh) { |
2698 | struct timeval timestamp; | |
2699 | ||
2700 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2701 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2702 | ||
2703 | do_gettimeofday(×tamp); | |
2704 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2705 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2706 | } | |
1da177e4 | 2707 | |
a553e4a6 JHS |
2708 | #ifdef CONFIG_XFRM |
2709 | if (!process_ipsec(pkt_dev, skb, protocol)) | |
2710 | return NULL; | |
2711 | #endif | |
2712 | ||
1da177e4 LT |
2713 | return skb; |
2714 | } | |
2715 | ||
2716 | /* | |
4ec93edb | 2717 | * scan_ip6, fmt_ip taken from dietlibc-0.21 |
1da177e4 LT |
2718 | * Author Felix von Leitner <felix-dietlibc@fefe.de> |
2719 | * | |
4ec93edb | 2720 | * Slightly modified for kernel. |
1da177e4 LT |
2721 | * Should be candidate for net/ipv4/utils.c |
2722 | * --ro | |
2723 | */ | |
2724 | ||
222f1806 | 2725 | static unsigned int scan_ip6(const char *s, char ip[16]) |
1da177e4 LT |
2726 | { |
2727 | unsigned int i; | |
222f1806 | 2728 | unsigned int len = 0; |
1da177e4 LT |
2729 | unsigned long u; |
2730 | char suffix[16]; | |
222f1806 LC |
2731 | unsigned int prefixlen = 0; |
2732 | unsigned int suffixlen = 0; | |
252e3346 | 2733 | __be32 tmp; |
cfcabdcc | 2734 | char *pos; |
1da177e4 | 2735 | |
222f1806 LC |
2736 | for (i = 0; i < 16; i++) |
2737 | ip[i] = 0; | |
1da177e4 LT |
2738 | |
2739 | for (;;) { | |
2740 | if (*s == ':') { | |
2741 | len++; | |
222f1806 LC |
2742 | if (s[1] == ':') { /* Found "::", skip to part 2 */ |
2743 | s += 2; | |
1da177e4 LT |
2744 | len++; |
2745 | break; | |
2746 | } | |
2747 | s++; | |
2748 | } | |
1da177e4 | 2749 | |
cfcabdcc SH |
2750 | u = simple_strtoul(s, &pos, 16); |
2751 | i = pos - s; | |
222f1806 LC |
2752 | if (!i) |
2753 | return 0; | |
2754 | if (prefixlen == 12 && s[i] == '.') { | |
1da177e4 LT |
2755 | |
2756 | /* the last 4 bytes may be written as IPv4 address */ | |
2757 | ||
2758 | tmp = in_aton(s); | |
222f1806 LC |
2759 | memcpy((struct in_addr *)(ip + 12), &tmp, sizeof(tmp)); |
2760 | return i + len; | |
1da177e4 LT |
2761 | } |
2762 | ip[prefixlen++] = (u >> 8); | |
2763 | ip[prefixlen++] = (u & 255); | |
222f1806 LC |
2764 | s += i; |
2765 | len += i; | |
2766 | if (prefixlen == 16) | |
1da177e4 LT |
2767 | return len; |
2768 | } | |
2769 | ||
2770 | /* part 2, after "::" */ | |
2771 | for (;;) { | |
2772 | if (*s == ':') { | |
222f1806 | 2773 | if (suffixlen == 0) |
1da177e4 LT |
2774 | break; |
2775 | s++; | |
2776 | len++; | |
222f1806 | 2777 | } else if (suffixlen != 0) |
1da177e4 | 2778 | break; |
cfcabdcc SH |
2779 | |
2780 | u = simple_strtol(s, &pos, 16); | |
2781 | i = pos - s; | |
1da177e4 | 2782 | if (!i) { |
222f1806 LC |
2783 | if (*s) |
2784 | len--; | |
1da177e4 LT |
2785 | break; |
2786 | } | |
222f1806 | 2787 | if (suffixlen + prefixlen <= 12 && s[i] == '.') { |
1da177e4 | 2788 | tmp = in_aton(s); |
222f1806 LC |
2789 | memcpy((struct in_addr *)(suffix + suffixlen), &tmp, |
2790 | sizeof(tmp)); | |
2791 | suffixlen += 4; | |
2792 | len += strlen(s); | |
1da177e4 LT |
2793 | break; |
2794 | } | |
2795 | suffix[suffixlen++] = (u >> 8); | |
2796 | suffix[suffixlen++] = (u & 255); | |
222f1806 LC |
2797 | s += i; |
2798 | len += i; | |
2799 | if (prefixlen + suffixlen == 16) | |
1da177e4 LT |
2800 | break; |
2801 | } | |
222f1806 LC |
2802 | for (i = 0; i < suffixlen; i++) |
2803 | ip[16 - suffixlen + i] = suffix[i]; | |
1da177e4 LT |
2804 | return len; |
2805 | } | |
2806 | ||
222f1806 LC |
2807 | static char tohex(char hexdigit) |
2808 | { | |
2809 | return hexdigit > 9 ? hexdigit + 'a' - 10 : hexdigit + '0'; | |
1da177e4 LT |
2810 | } |
2811 | ||
222f1806 LC |
2812 | static int fmt_xlong(char *s, unsigned int i) |
2813 | { | |
2814 | char *bak = s; | |
2815 | *s = tohex((i >> 12) & 0xf); | |
2816 | if (s != bak || *s != '0') | |
2817 | ++s; | |
2818 | *s = tohex((i >> 8) & 0xf); | |
2819 | if (s != bak || *s != '0') | |
2820 | ++s; | |
2821 | *s = tohex((i >> 4) & 0xf); | |
2822 | if (s != bak || *s != '0') | |
2823 | ++s; | |
2824 | *s = tohex(i & 0xf); | |
2825 | return s - bak + 1; | |
1da177e4 LT |
2826 | } |
2827 | ||
222f1806 LC |
2828 | static unsigned int fmt_ip6(char *s, const char ip[16]) |
2829 | { | |
1da177e4 LT |
2830 | unsigned int len; |
2831 | unsigned int i; | |
2832 | unsigned int temp; | |
2833 | unsigned int compressing; | |
2834 | int j; | |
2835 | ||
222f1806 LC |
2836 | len = 0; |
2837 | compressing = 0; | |
2838 | for (j = 0; j < 16; j += 2) { | |
1da177e4 LT |
2839 | |
2840 | #ifdef V4MAPPEDPREFIX | |
222f1806 LC |
2841 | if (j == 12 && !memcmp(ip, V4mappedprefix, 12)) { |
2842 | inet_ntoa_r(*(struct in_addr *)(ip + 12), s); | |
2843 | temp = strlen(s); | |
2844 | return len + temp; | |
1da177e4 LT |
2845 | } |
2846 | #endif | |
222f1806 LC |
2847 | temp = ((unsigned long)(unsigned char)ip[j] << 8) + |
2848 | (unsigned long)(unsigned char)ip[j + 1]; | |
1da177e4 LT |
2849 | if (temp == 0) { |
2850 | if (!compressing) { | |
222f1806 LC |
2851 | compressing = 1; |
2852 | if (j == 0) { | |
2853 | *s++ = ':'; | |
2854 | ++len; | |
1da177e4 LT |
2855 | } |
2856 | } | |
2857 | } else { | |
2858 | if (compressing) { | |
222f1806 LC |
2859 | compressing = 0; |
2860 | *s++ = ':'; | |
2861 | ++len; | |
1da177e4 | 2862 | } |
222f1806 LC |
2863 | i = fmt_xlong(s, temp); |
2864 | len += i; | |
2865 | s += i; | |
2866 | if (j < 14) { | |
1da177e4 LT |
2867 | *s++ = ':'; |
2868 | ++len; | |
2869 | } | |
2870 | } | |
2871 | } | |
2872 | if (compressing) { | |
222f1806 LC |
2873 | *s++ = ':'; |
2874 | ++len; | |
1da177e4 | 2875 | } |
222f1806 | 2876 | *s = 0; |
1da177e4 LT |
2877 | return len; |
2878 | } | |
2879 | ||
222f1806 LC |
2880 | static struct sk_buff *fill_packet_ipv6(struct net_device *odev, |
2881 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2882 | { |
2883 | struct sk_buff *skb = NULL; | |
2884 | __u8 *eth; | |
2885 | struct udphdr *udph; | |
2886 | int datalen; | |
2887 | struct ipv6hdr *iph; | |
222f1806 | 2888 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2889 | __be16 protocol = htons(ETH_P_IPV6); |
ca6549af | 2890 | __be32 *mpls; |
34954ddc FF |
2891 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2892 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2893 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2894 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2895 | u16 queue_map; |
ca6549af SW |
2896 | |
2897 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2898 | protocol = htons(ETH_P_MPLS_UC); |
64053bee | 2899 | |
34954ddc | 2900 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2901 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2902 | |
64053bee RO |
2903 | /* Update any of the values, used when we're incrementing various |
2904 | * fields. | |
2905 | */ | |
fd2ea0a7 | 2906 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2907 | mod_cur_headers(pkt_dev); |
2908 | ||
e470757d SH |
2909 | skb = __netdev_alloc_skb(odev, |
2910 | pkt_dev->cur_pkt_size + 64 | |
2911 | + 16 + pkt_dev->pkt_overhead, GFP_NOWAIT); | |
1da177e4 LT |
2912 | if (!skb) { |
2913 | sprintf(pkt_dev->result, "No memory"); | |
2914 | return NULL; | |
2915 | } | |
2916 | ||
2917 | skb_reserve(skb, 16); | |
2918 | ||
2919 | /* Reserve for ethernet and IP header */ | |
2920 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2921 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2922 | if (pkt_dev->nr_labels) | |
2923 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2924 | |
2925 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2926 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2927 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2928 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2929 | pkt_dev->svlan_cfi, | |
2930 | pkt_dev->svlan_p); | |
34954ddc | 2931 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2932 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2933 | } |
2934 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2935 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2936 | pkt_dev->vlan_cfi, | |
2937 | pkt_dev->vlan_p); | |
34954ddc | 2938 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2939 | *vlan_encapsulated_proto = htons(ETH_P_IPV6); |
34954ddc FF |
2940 | } |
2941 | ||
27a884dc | 2942 | skb->network_header = skb->tail; |
b0e380b1 | 2943 | skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); |
ddc7b8e3 | 2944 | skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2945 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
2946 | iph = ipv6_hdr(skb); |
2947 | udph = udp_hdr(skb); | |
1da177e4 | 2948 | |
1da177e4 | 2949 | memcpy(eth, pkt_dev->hh, 12); |
63adc6fb | 2950 | *(__be16 *) ð[12] = protocol; |
64053bee | 2951 | |
ca6549af SW |
2952 | /* Eth + IPh + UDPh + mpls */ |
2953 | datalen = pkt_dev->cur_pkt_size - 14 - | |
2954 | sizeof(struct ipv6hdr) - sizeof(struct udphdr) - | |
16dab72f | 2955 | pkt_dev->pkt_overhead; |
1da177e4 | 2956 | |
222f1806 | 2957 | if (datalen < sizeof(struct pktgen_hdr)) { |
1da177e4 LT |
2958 | datalen = sizeof(struct pktgen_hdr); |
2959 | if (net_ratelimit()) | |
222f1806 LC |
2960 | printk(KERN_INFO "pktgen: increased datalen to %d\n", |
2961 | datalen); | |
1da177e4 LT |
2962 | } |
2963 | ||
2964 | udph->source = htons(pkt_dev->cur_udp_src); | |
2965 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2966 | udph->len = htons(datalen + sizeof(struct udphdr)); |
2967 | udph->check = 0; /* No checksum */ | |
1da177e4 | 2968 | |
d5f1ce9a | 2969 | *(__be32 *) iph = htonl(0x60000000); /* Version + flow */ |
1da177e4 | 2970 | |
1ca7768c FF |
2971 | if (pkt_dev->traffic_class) { |
2972 | /* Version + traffic class + flow (0) */ | |
252e3346 | 2973 | *(__be32 *)iph |= htonl(0x60000000 | (pkt_dev->traffic_class << 20)); |
1ca7768c FF |
2974 | } |
2975 | ||
1da177e4 LT |
2976 | iph->hop_limit = 32; |
2977 | ||
2978 | iph->payload_len = htons(sizeof(struct udphdr) + datalen); | |
2979 | iph->nexthdr = IPPROTO_UDP; | |
2980 | ||
2981 | ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr); | |
2982 | ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr); | |
2983 | ||
b0e380b1 | 2984 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2985 | pkt_dev->pkt_overhead); |
ca6549af | 2986 | skb->protocol = protocol; |
1da177e4 LT |
2987 | skb->dev = odev; |
2988 | skb->pkt_type = PACKET_HOST; | |
2989 | ||
222f1806 LC |
2990 | if (pkt_dev->nfrags <= 0) |
2991 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2992 | else { |
2993 | int frags = pkt_dev->nfrags; | |
2994 | int i; | |
2995 | ||
222f1806 LC |
2996 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2997 | ||
1da177e4 LT |
2998 | if (frags > MAX_SKB_FRAGS) |
2999 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
3000 | if (datalen > frags * PAGE_SIZE) { |
3001 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
3002 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
3003 | } |
3004 | ||
3005 | i = 0; | |
3006 | while (datalen > 0) { | |
3007 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
3008 | skb_shinfo(skb)->frags[i].page = page; | |
3009 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
3010 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 3011 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
3012 | datalen -= skb_shinfo(skb)->frags[i].size; |
3013 | skb->len += skb_shinfo(skb)->frags[i].size; | |
3014 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
3015 | i++; | |
3016 | skb_shinfo(skb)->nr_frags = i; | |
3017 | } | |
3018 | ||
3019 | while (i < frags) { | |
3020 | int rem; | |
3021 | ||
3022 | if (i == 0) | |
3023 | break; | |
3024 | ||
3025 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
3026 | if (rem == 0) | |
3027 | break; | |
3028 | ||
3029 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
3030 | ||
222f1806 LC |
3031 | skb_shinfo(skb)->frags[i] = |
3032 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 3033 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
3034 | skb_shinfo(skb)->frags[i].page = |
3035 | skb_shinfo(skb)->frags[i - 1].page; | |
3036 | skb_shinfo(skb)->frags[i].page_offset += | |
3037 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
3038 | skb_shinfo(skb)->frags[i].size = rem; |
3039 | i++; | |
3040 | skb_shinfo(skb)->nr_frags = i; | |
3041 | } | |
3042 | } | |
3043 | ||
63adc6fb SH |
3044 | /* Stamp the time, and sequence number, |
3045 | * convert them to network byte order | |
3046 | * should we update cloned packets too ? | |
3047 | */ | |
222f1806 LC |
3048 | if (pgh) { |
3049 | struct timeval timestamp; | |
3050 | ||
3051 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
3052 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
3053 | ||
3054 | do_gettimeofday(×tamp); | |
3055 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
3056 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
3057 | } | |
34954ddc | 3058 | /* pkt_dev->seq_num++; FF: you really mean this? */ |
222f1806 | 3059 | |
1da177e4 LT |
3060 | return skb; |
3061 | } | |
3062 | ||
475ac1e4 SH |
3063 | static struct sk_buff *fill_packet(struct net_device *odev, |
3064 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3065 | { |
222f1806 | 3066 | if (pkt_dev->flags & F_IPV6) |
1da177e4 LT |
3067 | return fill_packet_ipv6(odev, pkt_dev); |
3068 | else | |
3069 | return fill_packet_ipv4(odev, pkt_dev); | |
3070 | } | |
3071 | ||
222f1806 | 3072 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev) |
1da177e4 | 3073 | { |
222f1806 LC |
3074 | pkt_dev->seq_num = 1; |
3075 | pkt_dev->idle_acc = 0; | |
1da177e4 | 3076 | pkt_dev->sofar = 0; |
222f1806 LC |
3077 | pkt_dev->tx_bytes = 0; |
3078 | pkt_dev->errors = 0; | |
1da177e4 LT |
3079 | } |
3080 | ||
3081 | /* Set up structure for sending pkts, clear counters */ | |
3082 | ||
3083 | static void pktgen_run(struct pktgen_thread *t) | |
3084 | { | |
c26a8016 | 3085 | struct pktgen_dev *pkt_dev; |
1da177e4 LT |
3086 | int started = 0; |
3087 | ||
25c4e53a | 3088 | pr_debug("pktgen: entering pktgen_run. %p\n", t); |
1da177e4 LT |
3089 | |
3090 | if_lock(t); | |
c26a8016 | 3091 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
1da177e4 LT |
3092 | |
3093 | /* | |
3094 | * setup odev and create initial packet. | |
3095 | */ | |
3096 | pktgen_setup_inject(pkt_dev); | |
3097 | ||
222f1806 | 3098 | if (pkt_dev->odev) { |
1da177e4 | 3099 | pktgen_clear_counters(pkt_dev); |
222f1806 | 3100 | pkt_dev->running = 1; /* Cranke yeself! */ |
1da177e4 | 3101 | pkt_dev->skb = NULL; |
fd29cf72 SH |
3102 | pkt_dev->started_at = |
3103 | pkt_dev->next_tx = ktime_now(); | |
3104 | ||
16dab72f | 3105 | set_pkt_overhead(pkt_dev); |
222f1806 | 3106 | |
1da177e4 LT |
3107 | strcpy(pkt_dev->result, "Starting"); |
3108 | started++; | |
222f1806 | 3109 | } else |
1da177e4 LT |
3110 | strcpy(pkt_dev->result, "Error starting"); |
3111 | } | |
3112 | if_unlock(t); | |
222f1806 LC |
3113 | if (started) |
3114 | t->control &= ~(T_STOP); | |
1da177e4 LT |
3115 | } |
3116 | ||
3117 | static void pktgen_stop_all_threads_ifs(void) | |
3118 | { | |
cdcdbe0b | 3119 | struct pktgen_thread *t; |
1da177e4 | 3120 | |
25c4e53a | 3121 | pr_debug("pktgen: entering pktgen_stop_all_threads_ifs.\n"); |
1da177e4 | 3122 | |
6146e6a4 | 3123 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3124 | |
3125 | list_for_each_entry(t, &pktgen_threads, th_list) | |
95ed63f7 | 3126 | t->control |= T_STOP; |
cdcdbe0b | 3127 | |
6146e6a4 | 3128 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3129 | } |
3130 | ||
648fda74 | 3131 | static int thread_is_running(const struct pktgen_thread *t) |
1da177e4 | 3132 | { |
648fda74 | 3133 | const struct pktgen_dev *pkt_dev; |
1da177e4 | 3134 | |
c26a8016 | 3135 | list_for_each_entry(pkt_dev, &t->if_list, list) |
648fda74 SH |
3136 | if (pkt_dev->running) |
3137 | return 1; | |
3138 | return 0; | |
1da177e4 LT |
3139 | } |
3140 | ||
222f1806 | 3141 | static int pktgen_wait_thread_run(struct pktgen_thread *t) |
1da177e4 | 3142 | { |
222f1806 | 3143 | if_lock(t); |
1da177e4 | 3144 | |
222f1806 | 3145 | while (thread_is_running(t)) { |
1da177e4 | 3146 | |
222f1806 | 3147 | if_unlock(t); |
1da177e4 | 3148 | |
222f1806 | 3149 | msleep_interruptible(100); |
1da177e4 | 3150 | |
222f1806 LC |
3151 | if (signal_pending(current)) |
3152 | goto signal; | |
3153 | if_lock(t); | |
3154 | } | |
3155 | if_unlock(t); | |
3156 | return 1; | |
3157 | signal: | |
3158 | return 0; | |
1da177e4 LT |
3159 | } |
3160 | ||
3161 | static int pktgen_wait_all_threads_run(void) | |
3162 | { | |
cdcdbe0b | 3163 | struct pktgen_thread *t; |
1da177e4 | 3164 | int sig = 1; |
222f1806 | 3165 | |
6146e6a4 | 3166 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3167 | |
3168 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1da177e4 | 3169 | sig = pktgen_wait_thread_run(t); |
222f1806 LC |
3170 | if (sig == 0) |
3171 | break; | |
1da177e4 | 3172 | } |
cdcdbe0b LC |
3173 | |
3174 | if (sig == 0) | |
3175 | list_for_each_entry(t, &pktgen_threads, th_list) | |
1da177e4 | 3176 | t->control |= (T_STOP); |
cdcdbe0b | 3177 | |
6146e6a4 | 3178 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3179 | return sig; |
3180 | } | |
3181 | ||
3182 | static void pktgen_run_all_threads(void) | |
3183 | { | |
cdcdbe0b | 3184 | struct pktgen_thread *t; |
1da177e4 | 3185 | |
25c4e53a | 3186 | pr_debug("pktgen: entering pktgen_run_all_threads.\n"); |
1da177e4 | 3187 | |
6146e6a4 | 3188 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3189 | |
cdcdbe0b | 3190 | list_for_each_entry(t, &pktgen_threads, th_list) |
1da177e4 | 3191 | t->control |= (T_RUN); |
cdcdbe0b | 3192 | |
6146e6a4 | 3193 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 | 3194 | |
63adc6fb SH |
3195 | /* Propagate thread->control */ |
3196 | schedule_timeout_interruptible(msecs_to_jiffies(125)); | |
222f1806 | 3197 | |
1da177e4 LT |
3198 | pktgen_wait_all_threads_run(); |
3199 | } | |
3200 | ||
eb37b41c JB |
3201 | static void pktgen_reset_all_threads(void) |
3202 | { | |
3203 | struct pktgen_thread *t; | |
3204 | ||
3205 | pr_debug("pktgen: entering pktgen_reset_all_threads.\n"); | |
3206 | ||
3207 | mutex_lock(&pktgen_thread_lock); | |
3208 | ||
3209 | list_for_each_entry(t, &pktgen_threads, th_list) | |
3210 | t->control |= (T_REMDEVALL); | |
3211 | ||
3212 | mutex_unlock(&pktgen_thread_lock); | |
3213 | ||
63adc6fb SH |
3214 | /* Propagate thread->control */ |
3215 | schedule_timeout_interruptible(msecs_to_jiffies(125)); | |
eb37b41c JB |
3216 | |
3217 | pktgen_wait_all_threads_run(); | |
3218 | } | |
3219 | ||
1da177e4 LT |
3220 | static void show_results(struct pktgen_dev *pkt_dev, int nr_frags) |
3221 | { | |
fd29cf72 | 3222 | __u64 bps, mbps, pps; |
222f1806 | 3223 | char *p = pkt_dev->result; |
fd29cf72 SH |
3224 | ktime_t elapsed = ktime_sub(pkt_dev->stopped_at, |
3225 | pkt_dev->started_at); | |
3226 | ktime_t idle = ns_to_ktime(pkt_dev->idle_acc); | |
3227 | ||
3228 | p += sprintf(p, "OK: %llu(c%llu+d%llu) nsec, %llu (%dbyte,%dfrags)\n", | |
3229 | (unsigned long long)ktime_to_us(elapsed), | |
3230 | (unsigned long long)ktime_to_us(ktime_sub(elapsed, idle)), | |
3231 | (unsigned long long)ktime_to_us(idle), | |
222f1806 LC |
3232 | (unsigned long long)pkt_dev->sofar, |
3233 | pkt_dev->cur_pkt_size, nr_frags); | |
3234 | ||
fd29cf72 SH |
3235 | pps = div64_u64(pkt_dev->sofar * NSEC_PER_SEC, |
3236 | ktime_to_ns(elapsed)); | |
222f1806 LC |
3237 | |
3238 | bps = pps * 8 * pkt_dev->cur_pkt_size; | |
3239 | ||
3240 | mbps = bps; | |
3241 | do_div(mbps, 1000000); | |
3242 | p += sprintf(p, " %llupps %lluMb/sec (%llubps) errors: %llu", | |
3243 | (unsigned long long)pps, | |
3244 | (unsigned long long)mbps, | |
3245 | (unsigned long long)bps, | |
3246 | (unsigned long long)pkt_dev->errors); | |
1da177e4 | 3247 | } |
1da177e4 LT |
3248 | |
3249 | /* Set stopped-at timer, remove from running list, do counters & statistics */ | |
222f1806 | 3250 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev) |
1da177e4 | 3251 | { |
222f1806 | 3252 | int nr_frags = pkt_dev->skb ? skb_shinfo(pkt_dev->skb)->nr_frags : -1; |
95ed63f7 | 3253 | |
222f1806 | 3254 | if (!pkt_dev->running) { |
25a8b254 DM |
3255 | printk(KERN_WARNING "pktgen: interface: %s is already " |
3256 | "stopped\n", pkt_dev->odev->name); | |
222f1806 LC |
3257 | return -EINVAL; |
3258 | } | |
1da177e4 | 3259 | |
3bda06a3 SH |
3260 | kfree_skb(pkt_dev->skb); |
3261 | pkt_dev->skb = NULL; | |
fd29cf72 | 3262 | pkt_dev->stopped_at = ktime_now(); |
222f1806 | 3263 | pkt_dev->running = 0; |
1da177e4 | 3264 | |
95ed63f7 | 3265 | show_results(pkt_dev, nr_frags); |
1da177e4 | 3266 | |
222f1806 | 3267 | return 0; |
1da177e4 LT |
3268 | } |
3269 | ||
222f1806 | 3270 | static struct pktgen_dev *next_to_run(struct pktgen_thread *t) |
1da177e4 | 3271 | { |
c26a8016 | 3272 | struct pktgen_dev *pkt_dev, *best = NULL; |
222f1806 | 3273 | |
1da177e4 LT |
3274 | if_lock(t); |
3275 | ||
c26a8016 LC |
3276 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3277 | if (!pkt_dev->running) | |
222f1806 LC |
3278 | continue; |
3279 | if (best == NULL) | |
c26a8016 | 3280 | best = pkt_dev; |
fd29cf72 | 3281 | else if (ktime_lt(pkt_dev->next_tx, best->next_tx)) |
c26a8016 | 3282 | best = pkt_dev; |
1da177e4 LT |
3283 | } |
3284 | if_unlock(t); | |
222f1806 | 3285 | return best; |
1da177e4 LT |
3286 | } |
3287 | ||
222f1806 LC |
3288 | static void pktgen_stop(struct pktgen_thread *t) |
3289 | { | |
c26a8016 | 3290 | struct pktgen_dev *pkt_dev; |
1da177e4 | 3291 | |
25c4e53a | 3292 | pr_debug("pktgen: entering pktgen_stop\n"); |
1da177e4 | 3293 | |
222f1806 | 3294 | if_lock(t); |
1da177e4 | 3295 | |
c26a8016 LC |
3296 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3297 | pktgen_stop_device(pkt_dev); | |
95ed63f7 | 3298 | } |
1da177e4 | 3299 | |
222f1806 | 3300 | if_unlock(t); |
1da177e4 LT |
3301 | } |
3302 | ||
95ed63f7 AK |
3303 | /* |
3304 | * one of our devices needs to be removed - find it | |
3305 | * and remove it | |
3306 | */ | |
3307 | static void pktgen_rem_one_if(struct pktgen_thread *t) | |
3308 | { | |
c26a8016 LC |
3309 | struct list_head *q, *n; |
3310 | struct pktgen_dev *cur; | |
95ed63f7 | 3311 | |
25c4e53a | 3312 | pr_debug("pktgen: entering pktgen_rem_one_if\n"); |
95ed63f7 AK |
3313 | |
3314 | if_lock(t); | |
3315 | ||
c26a8016 LC |
3316 | list_for_each_safe(q, n, &t->if_list) { |
3317 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3318 | |
222f1806 LC |
3319 | if (!cur->removal_mark) |
3320 | continue; | |
95ed63f7 | 3321 | |
86dc1ad2 | 3322 | kfree_skb(cur->skb); |
95ed63f7 AK |
3323 | cur->skb = NULL; |
3324 | ||
3325 | pktgen_remove_device(t, cur); | |
3326 | ||
3327 | break; | |
3328 | } | |
3329 | ||
3330 | if_unlock(t); | |
3331 | } | |
3332 | ||
222f1806 | 3333 | static void pktgen_rem_all_ifs(struct pktgen_thread *t) |
1da177e4 | 3334 | { |
c26a8016 LC |
3335 | struct list_head *q, *n; |
3336 | struct pktgen_dev *cur; | |
222f1806 LC |
3337 | |
3338 | /* Remove all devices, free mem */ | |
95ed63f7 | 3339 | |
25c4e53a | 3340 | pr_debug("pktgen: entering pktgen_rem_all_ifs\n"); |
222f1806 | 3341 | if_lock(t); |
1da177e4 | 3342 | |
c26a8016 LC |
3343 | list_for_each_safe(q, n, &t->if_list) { |
3344 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3345 | |
86dc1ad2 | 3346 | kfree_skb(cur->skb); |
95ed63f7 AK |
3347 | cur->skb = NULL; |
3348 | ||
1da177e4 LT |
3349 | pktgen_remove_device(t, cur); |
3350 | } | |
3351 | ||
222f1806 | 3352 | if_unlock(t); |
1da177e4 LT |
3353 | } |
3354 | ||
222f1806 | 3355 | static void pktgen_rem_thread(struct pktgen_thread *t) |
1da177e4 | 3356 | { |
222f1806 | 3357 | /* Remove from the thread list */ |
1da177e4 | 3358 | |
ee74baa7 | 3359 | remove_proc_entry(t->tsk->comm, pg_proc_dir); |
1da177e4 | 3360 | |
6146e6a4 | 3361 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3362 | |
cdcdbe0b LC |
3363 | list_del(&t->th_list); |
3364 | ||
6146e6a4 | 3365 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3366 | } |
3367 | ||
3791decb SH |
3368 | static void idle(struct pktgen_dev *pkt_dev) |
3369 | { | |
fd29cf72 | 3370 | ktime_t idle_start = ktime_now(); |
3791decb SH |
3371 | |
3372 | if (need_resched()) | |
3373 | schedule(); | |
3374 | else | |
3375 | cpu_relax(); | |
3376 | ||
fd29cf72 | 3377 | pkt_dev->idle_acc += ktime_to_ns(ktime_sub(ktime_now(), idle_start)); |
3791decb SH |
3378 | } |
3379 | ||
fd29cf72 | 3380 | |
475ac1e4 | 3381 | static void pktgen_xmit(struct pktgen_dev *pkt_dev) |
1da177e4 | 3382 | { |
00829823 | 3383 | struct net_device *odev = pkt_dev->odev; |
6fef4c0c | 3384 | netdev_tx_t (*xmit)(struct sk_buff *, struct net_device *) |
00829823 | 3385 | = odev->netdev_ops->ndo_start_xmit; |
fd2ea0a7 | 3386 | struct netdev_queue *txq; |
fd2ea0a7 | 3387 | u16 queue_map; |
1da177e4 LT |
3388 | int ret; |
3389 | ||
fd29cf72 | 3390 | if (pkt_dev->delay) { |
2bc481cf | 3391 | spin(pkt_dev, pkt_dev->next_tx); |
1da177e4 LT |
3392 | |
3393 | /* This is max DELAY, this has special meaning of | |
3394 | * "never transmit" | |
3395 | */ | |
fd29cf72 SH |
3396 | if (pkt_dev->delay == ULLONG_MAX) { |
3397 | pkt_dev->next_tx = ktime_add_ns(ktime_now(), ULONG_MAX); | |
3791decb | 3398 | return; |
1da177e4 LT |
3399 | } |
3400 | } | |
222f1806 | 3401 | |
fd2ea0a7 DM |
3402 | if (!pkt_dev->skb) { |
3403 | set_cur_queue_map(pkt_dev); | |
3404 | queue_map = pkt_dev->cur_queue_map; | |
3405 | } else { | |
3406 | queue_map = skb_get_queue_mapping(pkt_dev->skb); | |
3407 | } | |
3408 | ||
3409 | txq = netdev_get_tx_queue(odev, queue_map); | |
3791decb SH |
3410 | /* Did we saturate the queue already? */ |
3411 | if (netif_tx_queue_stopped(txq) || netif_tx_queue_frozen(txq)) { | |
3412 | /* If device is down, then all queues are permnantly frozen */ | |
3413 | if (netif_running(odev)) | |
3414 | idle(pkt_dev); | |
3415 | else | |
1da177e4 | 3416 | pktgen_stop_device(pkt_dev); |
3791decb | 3417 | return; |
1da177e4 | 3418 | } |
222f1806 | 3419 | |
7d7bb1cf SH |
3420 | if (!pkt_dev->skb || (pkt_dev->last_ok && |
3421 | ++pkt_dev->clone_count >= pkt_dev->clone_skb)) { | |
3422 | /* build a new pkt */ | |
3423 | kfree_skb(pkt_dev->skb); | |
3424 | ||
3425 | pkt_dev->skb = fill_packet(odev, pkt_dev); | |
3426 | if (pkt_dev->skb == NULL) { | |
3427 | printk(KERN_ERR "pktgen: ERROR: couldn't " | |
3428 | "allocate skb in fill_packet.\n"); | |
3429 | schedule(); | |
3430 | pkt_dev->clone_count--; /* back out increment, OOM */ | |
3431 | return; | |
1da177e4 | 3432 | } |
7d7bb1cf SH |
3433 | |
3434 | pkt_dev->allocated_skbs++; | |
3435 | pkt_dev->clone_count = 0; /* reset counter */ | |
1da177e4 | 3436 | } |
95ed63f7 | 3437 | |
fd2ea0a7 DM |
3438 | /* fill_packet() might have changed the queue */ |
3439 | queue_map = skb_get_queue_mapping(pkt_dev->skb); | |
3440 | txq = netdev_get_tx_queue(odev, queue_map); | |
3441 | ||
3442 | __netif_tx_lock_bh(txq); | |
3791decb SH |
3443 | if (unlikely(netif_tx_queue_stopped(txq) || netif_tx_queue_frozen(txq))) |
3444 | pkt_dev->last_ok = 0; | |
3445 | else { | |
1da177e4 | 3446 | atomic_inc(&(pkt_dev->skb->users)); |
5b8db2f5 SH |
3447 | |
3448 | retry_now: | |
00829823 | 3449 | ret = (*xmit)(pkt_dev->skb, odev); |
5b8db2f5 SH |
3450 | switch (ret) { |
3451 | case NETDEV_TX_OK: | |
08baf561 | 3452 | txq_trans_update(txq); |
222f1806 | 3453 | pkt_dev->last_ok = 1; |
1da177e4 LT |
3454 | pkt_dev->sofar++; |
3455 | pkt_dev->seq_num++; | |
3456 | pkt_dev->tx_bytes += pkt_dev->cur_pkt_size; | |
5b8db2f5 SH |
3457 | break; |
3458 | case NETDEV_TX_LOCKED: | |
1da177e4 LT |
3459 | cpu_relax(); |
3460 | goto retry_now; | |
5b8db2f5 SH |
3461 | default: /* Drivers are not supposed to return other values! */ |
3462 | if (net_ratelimit()) | |
3463 | pr_info("pktgen: %s xmit error: %d\n", | |
3464 | odev->name, ret); | |
1da177e4 | 3465 | pkt_dev->errors++; |
5b8db2f5 SH |
3466 | /* fallthru */ |
3467 | case NETDEV_TX_BUSY: | |
3468 | /* Retry it next time */ | |
3469 | atomic_dec(&(pkt_dev->skb->users)); | |
1da177e4 LT |
3470 | pkt_dev->last_ok = 0; |
3471 | } | |
3472 | ||
fd29cf72 SH |
3473 | if (pkt_dev->delay) |
3474 | pkt_dev->next_tx = ktime_add_ns(ktime_now(), | |
3475 | pkt_dev->delay); | |
222f1806 | 3476 | } |
fd2ea0a7 | 3477 | __netif_tx_unlock_bh(txq); |
222f1806 | 3478 | |
1da177e4 LT |
3479 | /* If pkt_dev->count is zero, then run forever */ |
3480 | if ((pkt_dev->count != 0) && (pkt_dev->sofar >= pkt_dev->count)) { | |
64e8ff5e SH |
3481 | while (atomic_read(&(pkt_dev->skb->users)) != 1) { |
3482 | if (signal_pending(current)) | |
3483 | break; | |
3484 | idle(pkt_dev); | |
1da177e4 | 3485 | } |
222f1806 | 3486 | |
1da177e4 LT |
3487 | /* Done with this */ |
3488 | pktgen_stop_device(pkt_dev); | |
222f1806 | 3489 | } |
222f1806 | 3490 | } |
1da177e4 | 3491 | |
4ec93edb | 3492 | /* |
1da177e4 LT |
3493 | * Main loop of the thread goes here |
3494 | */ | |
3495 | ||
ee74baa7 | 3496 | static int pktgen_thread_worker(void *arg) |
1da177e4 LT |
3497 | { |
3498 | DEFINE_WAIT(wait); | |
ee74baa7 | 3499 | struct pktgen_thread *t = arg; |
222f1806 | 3500 | struct pktgen_dev *pkt_dev = NULL; |
1da177e4 | 3501 | int cpu = t->cpu; |
1da177e4 | 3502 | |
ee74baa7 | 3503 | BUG_ON(smp_processor_id() != cpu); |
1da177e4 LT |
3504 | |
3505 | init_waitqueue_head(&t->queue); | |
d3ede327 | 3506 | complete(&t->start_done); |
1da177e4 | 3507 | |
63adc6fb SH |
3508 | pr_debug("pktgen: starting pktgen/%d: pid=%d\n", |
3509 | cpu, task_pid_nr(current)); | |
1da177e4 | 3510 | |
ee74baa7 | 3511 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3512 | |
83144186 RW |
3513 | set_freezable(); |
3514 | ||
ee74baa7 DM |
3515 | while (!kthread_should_stop()) { |
3516 | pkt_dev = next_to_run(t); | |
1da177e4 | 3517 | |
ee74baa7 DM |
3518 | if (!pkt_dev && |
3519 | (t->control & (T_STOP | T_RUN | T_REMDEVALL | T_REMDEV)) | |
3520 | == 0) { | |
3521 | prepare_to_wait(&(t->queue), &wait, | |
3522 | TASK_INTERRUPTIBLE); | |
3523 | schedule_timeout(HZ / 10); | |
3524 | finish_wait(&(t->queue), &wait); | |
3525 | } | |
1da177e4 | 3526 | |
ee74baa7 | 3527 | __set_current_state(TASK_RUNNING); |
222f1806 | 3528 | |
b163911f | 3529 | if (pkt_dev) |
1da177e4 LT |
3530 | pktgen_xmit(pkt_dev); |
3531 | ||
222f1806 | 3532 | if (t->control & T_STOP) { |
1da177e4 LT |
3533 | pktgen_stop(t); |
3534 | t->control &= ~(T_STOP); | |
3535 | } | |
3536 | ||
222f1806 | 3537 | if (t->control & T_RUN) { |
1da177e4 LT |
3538 | pktgen_run(t); |
3539 | t->control &= ~(T_RUN); | |
3540 | } | |
3541 | ||
222f1806 | 3542 | if (t->control & T_REMDEVALL) { |
1da177e4 | 3543 | pktgen_rem_all_ifs(t); |
95ed63f7 AK |
3544 | t->control &= ~(T_REMDEVALL); |
3545 | } | |
3546 | ||
222f1806 | 3547 | if (t->control & T_REMDEV) { |
95ed63f7 | 3548 | pktgen_rem_one_if(t); |
1da177e4 LT |
3549 | t->control &= ~(T_REMDEV); |
3550 | } | |
3551 | ||
09fe3ef4 AM |
3552 | try_to_freeze(); |
3553 | ||
ee74baa7 | 3554 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3555 | } |
1da177e4 | 3556 | |
25c4e53a | 3557 | pr_debug("pktgen: %s stopping all device\n", t->tsk->comm); |
222f1806 | 3558 | pktgen_stop(t); |
1da177e4 | 3559 | |
25c4e53a | 3560 | pr_debug("pktgen: %s removing all device\n", t->tsk->comm); |
222f1806 | 3561 | pktgen_rem_all_ifs(t); |
1da177e4 | 3562 | |
25c4e53a | 3563 | pr_debug("pktgen: %s removing thread.\n", t->tsk->comm); |
222f1806 | 3564 | pktgen_rem_thread(t); |
cdcdbe0b | 3565 | |
ee74baa7 | 3566 | return 0; |
1da177e4 LT |
3567 | } |
3568 | ||
222f1806 LC |
3569 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, |
3570 | const char *ifname) | |
1da177e4 | 3571 | { |
c26a8016 | 3572 | struct pktgen_dev *p, *pkt_dev = NULL; |
222f1806 LC |
3573 | if_lock(t); |
3574 | ||
c26a8016 | 3575 | list_for_each_entry(p, &t->if_list, list) |
39df232f | 3576 | if (strncmp(p->odev->name, ifname, IFNAMSIZ) == 0) { |
c26a8016 | 3577 | pkt_dev = p; |
222f1806 LC |
3578 | break; |
3579 | } | |
222f1806 LC |
3580 | |
3581 | if_unlock(t); | |
25c4e53a | 3582 | pr_debug("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev); |
222f1806 | 3583 | return pkt_dev; |
1da177e4 LT |
3584 | } |
3585 | ||
4ec93edb YH |
3586 | /* |
3587 | * Adds a dev at front of if_list. | |
1da177e4 LT |
3588 | */ |
3589 | ||
222f1806 LC |
3590 | static int add_dev_to_thread(struct pktgen_thread *t, |
3591 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3592 | { |
3593 | int rv = 0; | |
222f1806 LC |
3594 | |
3595 | if_lock(t); | |
3596 | ||
3597 | if (pkt_dev->pg_thread) { | |
25a8b254 DM |
3598 | printk(KERN_ERR "pktgen: ERROR: already assigned " |
3599 | "to a thread.\n"); | |
222f1806 LC |
3600 | rv = -EBUSY; |
3601 | goto out; | |
3602 | } | |
c26a8016 LC |
3603 | |
3604 | list_add(&pkt_dev->list, &t->if_list); | |
222f1806 | 3605 | pkt_dev->pg_thread = t; |
1da177e4 LT |
3606 | pkt_dev->running = 0; |
3607 | ||
222f1806 LC |
3608 | out: |
3609 | if_unlock(t); | |
3610 | return rv; | |
1da177e4 LT |
3611 | } |
3612 | ||
3613 | /* Called under thread lock */ | |
3614 | ||
222f1806 | 3615 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname) |
1da177e4 | 3616 | { |
222f1806 | 3617 | struct pktgen_dev *pkt_dev; |
39df232f | 3618 | int err; |
222f1806 | 3619 | |
1da177e4 LT |
3620 | /* We don't allow a device to be on several threads */ |
3621 | ||
d50a6b56 SH |
3622 | pkt_dev = __pktgen_NN_threads(ifname, FIND); |
3623 | if (pkt_dev) { | |
25a8b254 | 3624 | printk(KERN_ERR "pktgen: ERROR: interface already used.\n"); |
222f1806 LC |
3625 | return -EBUSY; |
3626 | } | |
d50a6b56 SH |
3627 | |
3628 | pkt_dev = kzalloc(sizeof(struct pktgen_dev), GFP_KERNEL); | |
3629 | if (!pkt_dev) | |
3630 | return -ENOMEM; | |
3631 | ||
222f1806 | 3632 | pkt_dev->flows = vmalloc(MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 SH |
3633 | if (pkt_dev->flows == NULL) { |
3634 | kfree(pkt_dev); | |
3635 | return -ENOMEM; | |
3636 | } | |
222f1806 | 3637 | memset(pkt_dev->flows, 0, MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 | 3638 | |
95ed63f7 | 3639 | pkt_dev->removal_mark = 0; |
d50a6b56 SH |
3640 | pkt_dev->min_pkt_size = ETH_ZLEN; |
3641 | pkt_dev->max_pkt_size = ETH_ZLEN; | |
3642 | pkt_dev->nfrags = 0; | |
3643 | pkt_dev->clone_skb = pg_clone_skb_d; | |
fd29cf72 | 3644 | pkt_dev->delay = pg_delay_d; |
d50a6b56 SH |
3645 | pkt_dev->count = pg_count_d; |
3646 | pkt_dev->sofar = 0; | |
222f1806 | 3647 | pkt_dev->udp_src_min = 9; /* sink port */ |
d50a6b56 SH |
3648 | pkt_dev->udp_src_max = 9; |
3649 | pkt_dev->udp_dst_min = 9; | |
3650 | pkt_dev->udp_dst_max = 9; | |
3651 | ||
34954ddc FF |
3652 | pkt_dev->vlan_p = 0; |
3653 | pkt_dev->vlan_cfi = 0; | |
3654 | pkt_dev->vlan_id = 0xffff; | |
3655 | pkt_dev->svlan_p = 0; | |
3656 | pkt_dev->svlan_cfi = 0; | |
3657 | pkt_dev->svlan_id = 0xffff; | |
3658 | ||
39df232f SH |
3659 | err = pktgen_setup_dev(pkt_dev, ifname); |
3660 | if (err) | |
3661 | goto out1; | |
d50a6b56 | 3662 | |
5efdccbc DL |
3663 | pkt_dev->entry = proc_create_data(ifname, 0600, pg_proc_dir, |
3664 | &pktgen_if_fops, pkt_dev); | |
39df232f | 3665 | if (!pkt_dev->entry) { |
25a8b254 | 3666 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
d50a6b56 | 3667 | PG_PROC_DIR, ifname); |
39df232f SH |
3668 | err = -EINVAL; |
3669 | goto out2; | |
d50a6b56 | 3670 | } |
a553e4a6 JHS |
3671 | #ifdef CONFIG_XFRM |
3672 | pkt_dev->ipsmode = XFRM_MODE_TRANSPORT; | |
3673 | pkt_dev->ipsproto = IPPROTO_ESP; | |
3674 | #endif | |
d50a6b56 SH |
3675 | |
3676 | return add_dev_to_thread(t, pkt_dev); | |
39df232f SH |
3677 | out2: |
3678 | dev_put(pkt_dev->odev); | |
3679 | out1: | |
a553e4a6 JHS |
3680 | #ifdef CONFIG_XFRM |
3681 | free_SAs(pkt_dev); | |
3682 | #endif | |
1d0ebfe7 | 3683 | vfree(pkt_dev->flows); |
39df232f SH |
3684 | kfree(pkt_dev); |
3685 | return err; | |
1da177e4 LT |
3686 | } |
3687 | ||
ee74baa7 | 3688 | static int __init pktgen_create_thread(int cpu) |
1da177e4 | 3689 | { |
cdcdbe0b | 3690 | struct pktgen_thread *t; |
d50a6b56 | 3691 | struct proc_dir_entry *pe; |
ee74baa7 | 3692 | struct task_struct *p; |
222f1806 LC |
3693 | |
3694 | t = kzalloc(sizeof(struct pktgen_thread), GFP_KERNEL); | |
3695 | if (!t) { | |
25a8b254 DM |
3696 | printk(KERN_ERR "pktgen: ERROR: out of memory, can't " |
3697 | "create new thread.\n"); | |
222f1806 LC |
3698 | return -ENOMEM; |
3699 | } | |
3700 | ||
222f1806 | 3701 | spin_lock_init(&t->if_lock); |
1da177e4 | 3702 | t->cpu = cpu; |
222f1806 | 3703 | |
ee74baa7 DM |
3704 | INIT_LIST_HEAD(&t->if_list); |
3705 | ||
3706 | list_add_tail(&t->th_list, &pktgen_threads); | |
d3ede327 | 3707 | init_completion(&t->start_done); |
ee74baa7 DM |
3708 | |
3709 | p = kthread_create(pktgen_thread_worker, t, "kpktgend_%d", cpu); | |
3710 | if (IS_ERR(p)) { | |
25a8b254 DM |
3711 | printk(KERN_ERR "pktgen: kernel_thread() failed " |
3712 | "for cpu %d\n", t->cpu); | |
ee74baa7 DM |
3713 | list_del(&t->th_list); |
3714 | kfree(t); | |
3715 | return PTR_ERR(p); | |
3716 | } | |
3717 | kthread_bind(p, cpu); | |
3718 | t->tsk = p; | |
3719 | ||
5efdccbc DL |
3720 | pe = proc_create_data(t->tsk->comm, 0600, pg_proc_dir, |
3721 | &pktgen_thread_fops, t); | |
222f1806 | 3722 | if (!pe) { |
25a8b254 | 3723 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
ee74baa7 DM |
3724 | PG_PROC_DIR, t->tsk->comm); |
3725 | kthread_stop(p); | |
3726 | list_del(&t->th_list); | |
222f1806 LC |
3727 | kfree(t); |
3728 | return -EINVAL; | |
3729 | } | |
d50a6b56 | 3730 | |
ee74baa7 | 3731 | wake_up_process(p); |
d3ede327 | 3732 | wait_for_completion(&t->start_done); |
1da177e4 LT |
3733 | |
3734 | return 0; | |
3735 | } | |
3736 | ||
4ec93edb YH |
3737 | /* |
3738 | * Removes a device from the thread if_list. | |
1da177e4 | 3739 | */ |
222f1806 LC |
3740 | static void _rem_dev_from_if_list(struct pktgen_thread *t, |
3741 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3742 | { |
c26a8016 LC |
3743 | struct list_head *q, *n; |
3744 | struct pktgen_dev *p; | |
1da177e4 | 3745 | |
c26a8016 LC |
3746 | list_for_each_safe(q, n, &t->if_list) { |
3747 | p = list_entry(q, struct pktgen_dev, list); | |
3748 | if (p == pkt_dev) | |
3749 | list_del(&p->list); | |
1da177e4 LT |
3750 | } |
3751 | } | |
3752 | ||
222f1806 LC |
3753 | static int pktgen_remove_device(struct pktgen_thread *t, |
3754 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3755 | { |
3756 | ||
25c4e53a | 3757 | pr_debug("pktgen: remove_device pkt_dev=%p\n", pkt_dev); |
1da177e4 | 3758 | |
222f1806 | 3759 | if (pkt_dev->running) { |
25a8b254 DM |
3760 | printk(KERN_WARNING "pktgen: WARNING: trying to remove a " |
3761 | "running interface, stopping it now.\n"); | |
222f1806 LC |
3762 | pktgen_stop_device(pkt_dev); |
3763 | } | |
3764 | ||
3765 | /* Dis-associate from the interface */ | |
1da177e4 LT |
3766 | |
3767 | if (pkt_dev->odev) { | |
3768 | dev_put(pkt_dev->odev); | |
222f1806 LC |
3769 | pkt_dev->odev = NULL; |
3770 | } | |
3771 | ||
1da177e4 LT |
3772 | /* And update the thread if_list */ |
3773 | ||
3774 | _rem_dev_from_if_list(t, pkt_dev); | |
3775 | ||
39df232f SH |
3776 | if (pkt_dev->entry) |
3777 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1da177e4 | 3778 | |
a553e4a6 JHS |
3779 | #ifdef CONFIG_XFRM |
3780 | free_SAs(pkt_dev); | |
3781 | #endif | |
1d0ebfe7 | 3782 | vfree(pkt_dev->flows); |
1da177e4 | 3783 | kfree(pkt_dev); |
222f1806 | 3784 | return 0; |
1da177e4 LT |
3785 | } |
3786 | ||
222f1806 | 3787 | static int __init pg_init(void) |
1da177e4 LT |
3788 | { |
3789 | int cpu; | |
d50a6b56 | 3790 | struct proc_dir_entry *pe; |
1da177e4 | 3791 | |
25a8b254 | 3792 | printk(KERN_INFO "%s", version); |
1da177e4 | 3793 | |
457c4cbc | 3794 | pg_proc_dir = proc_mkdir(PG_PROC_DIR, init_net.proc_net); |
d50a6b56 SH |
3795 | if (!pg_proc_dir) |
3796 | return -ENODEV; | |
1da177e4 | 3797 | |
25296d59 | 3798 | pe = proc_create(PGCTRL, 0600, pg_proc_dir, &pktgen_fops); |
222f1806 | 3799 | if (pe == NULL) { |
25a8b254 DM |
3800 | printk(KERN_ERR "pktgen: ERROR: cannot create %s " |
3801 | "procfs entry.\n", PGCTRL); | |
457c4cbc | 3802 | proc_net_remove(&init_net, PG_PROC_DIR); |
222f1806 LC |
3803 | return -EINVAL; |
3804 | } | |
1da177e4 | 3805 | |
1da177e4 LT |
3806 | /* Register us to receive netdevice events */ |
3807 | register_netdevice_notifier(&pktgen_notifier_block); | |
222f1806 | 3808 | |
670c02c2 | 3809 | for_each_online_cpu(cpu) { |
8024bb24 | 3810 | int err; |
1da177e4 | 3811 | |
ee74baa7 | 3812 | err = pktgen_create_thread(cpu); |
8024bb24 | 3813 | if (err) |
25a8b254 DM |
3814 | printk(KERN_WARNING "pktgen: WARNING: Cannot create " |
3815 | "thread for cpu %d (%d)\n", cpu, err); | |
222f1806 | 3816 | } |
8024bb24 LC |
3817 | |
3818 | if (list_empty(&pktgen_threads)) { | |
25a8b254 DM |
3819 | printk(KERN_ERR "pktgen: ERROR: Initialization failed for " |
3820 | "all threads\n"); | |
8024bb24 LC |
3821 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3822 | remove_proc_entry(PGCTRL, pg_proc_dir); | |
457c4cbc | 3823 | proc_net_remove(&init_net, PG_PROC_DIR); |
8024bb24 LC |
3824 | return -ENODEV; |
3825 | } | |
3826 | ||
222f1806 | 3827 | return 0; |
1da177e4 LT |
3828 | } |
3829 | ||
3830 | static void __exit pg_cleanup(void) | |
3831 | { | |
cdcdbe0b LC |
3832 | struct pktgen_thread *t; |
3833 | struct list_head *q, *n; | |
1da177e4 LT |
3834 | wait_queue_head_t queue; |
3835 | init_waitqueue_head(&queue); | |
3836 | ||
222f1806 | 3837 | /* Stop all interfaces & threads */ |
1da177e4 | 3838 | |
cdcdbe0b LC |
3839 | list_for_each_safe(q, n, &pktgen_threads) { |
3840 | t = list_entry(q, struct pktgen_thread, th_list); | |
ee74baa7 DM |
3841 | kthread_stop(t->tsk); |
3842 | kfree(t); | |
222f1806 | 3843 | } |
1da177e4 | 3844 | |
222f1806 | 3845 | /* Un-register us from receiving netdevice events */ |
1da177e4 LT |
3846 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3847 | ||
222f1806 | 3848 | /* Clean up proc file system */ |
d50a6b56 | 3849 | remove_proc_entry(PGCTRL, pg_proc_dir); |
457c4cbc | 3850 | proc_net_remove(&init_net, PG_PROC_DIR); |
1da177e4 LT |
3851 | } |
3852 | ||
1da177e4 LT |
3853 | module_init(pg_init); |
3854 | module_exit(pg_cleanup); | |
3855 | ||
c3d2f52d | 3856 | MODULE_AUTHOR("Robert Olsson <robert.olsson@its.uu.se>"); |
1da177e4 LT |
3857 | MODULE_DESCRIPTION("Packet Generator tool"); |
3858 | MODULE_LICENSE("GPL"); | |
c3d2f52d | 3859 | MODULE_VERSION(VERSION); |
1da177e4 | 3860 | module_param(pg_count_d, int, 0); |
c3d2f52d | 3861 | MODULE_PARM_DESC(pg_count_d, "Default number of packets to inject"); |
1da177e4 | 3862 | module_param(pg_delay_d, int, 0); |
c3d2f52d | 3863 | MODULE_PARM_DESC(pg_delay_d, "Default delay between packets (nanoseconds)"); |
1da177e4 | 3864 | module_param(pg_clone_skb_d, int, 0); |
c3d2f52d | 3865 | MODULE_PARM_DESC(pg_clone_skb_d, "Default number of copies of the same packet"); |
1da177e4 | 3866 | module_param(debug, int, 0); |
c3d2f52d | 3867 | MODULE_PARM_DESC(debug, "Enable debugging of pktgen module"); |