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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> |
09fe3ef4 | 134 | #include <linux/freezer.h> |
1da177e4 LT |
135 | #include <linux/delay.h> |
136 | #include <linux/timer.h> | |
cdcdbe0b | 137 | #include <linux/list.h> |
1da177e4 LT |
138 | #include <linux/init.h> |
139 | #include <linux/skbuff.h> | |
140 | #include <linux/netdevice.h> | |
141 | #include <linux/inet.h> | |
142 | #include <linux/inetdevice.h> | |
143 | #include <linux/rtnetlink.h> | |
144 | #include <linux/if_arp.h> | |
34954ddc | 145 | #include <linux/if_vlan.h> |
1da177e4 LT |
146 | #include <linux/in.h> |
147 | #include <linux/ip.h> | |
148 | #include <linux/ipv6.h> | |
149 | #include <linux/udp.h> | |
150 | #include <linux/proc_fs.h> | |
d50a6b56 | 151 | #include <linux/seq_file.h> |
1da177e4 | 152 | #include <linux/wait.h> |
f404e9a6 | 153 | #include <linux/etherdevice.h> |
ee74baa7 | 154 | #include <linux/kthread.h> |
457c4cbc | 155 | #include <net/net_namespace.h> |
1da177e4 LT |
156 | #include <net/checksum.h> |
157 | #include <net/ipv6.h> | |
158 | #include <net/addrconf.h> | |
a553e4a6 JHS |
159 | #ifdef CONFIG_XFRM |
160 | #include <net/xfrm.h> | |
161 | #endif | |
1da177e4 LT |
162 | #include <asm/byteorder.h> |
163 | #include <linux/rcupdate.h> | |
1977f032 | 164 | #include <linux/bitops.h> |
1da177e4 LT |
165 | #include <asm/io.h> |
166 | #include <asm/dma.h> | |
167 | #include <asm/uaccess.h> | |
222f1806 | 168 | #include <asm/div64.h> /* do_div */ |
1da177e4 LT |
169 | #include <asm/timex.h> |
170 | ||
e6fce5b9 | 171 | #define VERSION "pktgen v2.70: Packet Generator for packet performance testing.\n" |
1da177e4 | 172 | |
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" | |
209 | static struct proc_dir_entry *pg_proc_dir = NULL; | |
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 */ | |
c26a8016 | 234 | struct list_head list; /* Used for chaining in the thread's run-queue */ |
1da177e4 | 235 | |
222f1806 | 236 | int running; /* if this changes to 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 LC |
248 | int nfrags; |
249 | __u32 delay_us; /* Default delay */ | |
250 | __u32 delay_ns; | |
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 */ | |
254 | __u64 errors; /* Errors when trying to transmit, pkts will be re-sent */ | |
255 | ||
256 | /* runtime counters relating to clone_skb */ | |
257 | __u64 next_tx_us; /* timestamp of when to tx next */ | |
258 | __u32 next_tx_ns; | |
259 | ||
260 | __u64 allocated_skbs; | |
261 | __u32 clone_count; | |
262 | int last_ok; /* Was last skb sent? | |
263 | * Or a failed transmit of some sort? This will keep | |
264 | * sequence numbers in order, for example. | |
265 | */ | |
266 | __u64 started_at; /* micro-seconds */ | |
267 | __u64 stopped_at; /* micro-seconds */ | |
268 | __u64 idle_acc; /* micro-seconds */ | |
269 | __u32 seq_num; | |
270 | ||
271 | int clone_skb; /* Use multiple SKBs during packet gen. If this number | |
272 | * is greater than 1, then that many copies of the same | |
273 | * packet will be sent before a new packet is allocated. | |
274 | * For instance, if you want to send 1024 identical packets | |
275 | * before creating a new packet, set clone_skb to 1024. | |
276 | */ | |
277 | ||
278 | char dst_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
279 | char dst_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
280 | char src_min[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
281 | char src_max[IP_NAME_SZ]; /* IP, ie 1.2.3.4 */ | |
282 | ||
283 | struct in6_addr in6_saddr; | |
284 | struct in6_addr in6_daddr; | |
285 | struct in6_addr cur_in6_daddr; | |
286 | struct in6_addr cur_in6_saddr; | |
1da177e4 | 287 | /* For ranges */ |
222f1806 LC |
288 | struct in6_addr min_in6_daddr; |
289 | struct in6_addr max_in6_daddr; | |
290 | struct in6_addr min_in6_saddr; | |
291 | struct in6_addr max_in6_saddr; | |
292 | ||
293 | /* If we're doing ranges, random or incremental, then this | |
294 | * defines the min/max for those ranges. | |
295 | */ | |
252e3346 AV |
296 | __be32 saddr_min; /* inclusive, source IP address */ |
297 | __be32 saddr_max; /* exclusive, source IP address */ | |
298 | __be32 daddr_min; /* inclusive, dest IP address */ | |
299 | __be32 daddr_max; /* exclusive, dest IP address */ | |
222f1806 LC |
300 | |
301 | __u16 udp_src_min; /* inclusive, source UDP port */ | |
302 | __u16 udp_src_max; /* exclusive, source UDP port */ | |
303 | __u16 udp_dst_min; /* inclusive, dest UDP port */ | |
304 | __u16 udp_dst_max; /* exclusive, dest UDP port */ | |
305 | ||
1ca7768c FF |
306 | /* DSCP + ECN */ |
307 | __u8 tos; /* six most significant bits of (former) IPv4 TOS are for dscp codepoint */ | |
308 | __u8 traffic_class; /* ditto for the (former) Traffic Class in IPv6 (see RFC 3260, sec. 4) */ | |
309 | ||
ca6549af SW |
310 | /* MPLS */ |
311 | unsigned nr_labels; /* Depth of stack, 0 = no MPLS */ | |
312 | __be32 labels[MAX_MPLS_LABELS]; | |
313 | ||
34954ddc FF |
314 | /* VLAN/SVLAN (802.1Q/Q-in-Q) */ |
315 | __u8 vlan_p; | |
316 | __u8 vlan_cfi; | |
317 | __u16 vlan_id; /* 0xffff means no vlan tag */ | |
318 | ||
319 | __u8 svlan_p; | |
320 | __u8 svlan_cfi; | |
321 | __u16 svlan_id; /* 0xffff means no svlan tag */ | |
322 | ||
222f1806 LC |
323 | __u32 src_mac_count; /* How many MACs to iterate through */ |
324 | __u32 dst_mac_count; /* How many MACs to iterate through */ | |
325 | ||
326 | unsigned char dst_mac[ETH_ALEN]; | |
327 | unsigned char src_mac[ETH_ALEN]; | |
328 | ||
329 | __u32 cur_dst_mac_offset; | |
330 | __u32 cur_src_mac_offset; | |
252e3346 AV |
331 | __be32 cur_saddr; |
332 | __be32 cur_daddr; | |
222f1806 LC |
333 | __u16 cur_udp_dst; |
334 | __u16 cur_udp_src; | |
45b270f8 | 335 | __u16 cur_queue_map; |
222f1806 LC |
336 | __u32 cur_pkt_size; |
337 | ||
338 | __u8 hh[14]; | |
339 | /* = { | |
340 | 0x00, 0x80, 0xC8, 0x79, 0xB3, 0xCB, | |
341 | ||
342 | We fill in SRC address later | |
343 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
344 | 0x08, 0x00 | |
345 | }; | |
346 | */ | |
347 | __u16 pad; /* pad out the hh struct to an even 16 bytes */ | |
348 | ||
349 | struct sk_buff *skb; /* skb we are to transmit next, mainly used for when we | |
350 | * are transmitting the same one multiple times | |
351 | */ | |
352 | struct net_device *odev; /* The out-going device. Note that the device should | |
353 | * have it's pg_info pointer pointing back to this | |
354 | * device. This will be set when the user specifies | |
355 | * the out-going device name (not when the inject is | |
356 | * started as it used to do.) | |
357 | */ | |
1da177e4 | 358 | struct flow_state *flows; |
222f1806 LC |
359 | unsigned cflows; /* Concurrent flows (config) */ |
360 | unsigned lflow; /* Flow length (config) */ | |
361 | unsigned nflows; /* accumulated flows (stats) */ | |
007a531b | 362 | unsigned curfl; /* current sequenced flow (state)*/ |
45b270f8 RO |
363 | |
364 | u16 queue_map_min; | |
365 | u16 queue_map_max; | |
366 | ||
a553e4a6 JHS |
367 | #ifdef CONFIG_XFRM |
368 | __u8 ipsmode; /* IPSEC mode (config) */ | |
369 | __u8 ipsproto; /* IPSEC type (config) */ | |
370 | #endif | |
39df232f | 371 | char result[512]; |
1da177e4 LT |
372 | }; |
373 | ||
374 | struct pktgen_hdr { | |
252e3346 AV |
375 | __be32 pgh_magic; |
376 | __be32 seq_num; | |
377 | __be32 tv_sec; | |
378 | __be32 tv_usec; | |
1da177e4 LT |
379 | }; |
380 | ||
381 | struct pktgen_thread { | |
222f1806 | 382 | spinlock_t if_lock; |
c26a8016 | 383 | struct list_head if_list; /* All device here */ |
cdcdbe0b | 384 | struct list_head th_list; |
ee74baa7 | 385 | struct task_struct *tsk; |
222f1806 | 386 | char result[512]; |
222f1806 LC |
387 | |
388 | /* Field for thread to receive "posted" events terminate, stop ifs etc. */ | |
389 | ||
390 | u32 control; | |
1da177e4 LT |
391 | int cpu; |
392 | ||
222f1806 | 393 | wait_queue_head_t queue; |
d3ede327 | 394 | struct completion start_done; |
1da177e4 LT |
395 | }; |
396 | ||
397 | #define REMOVE 1 | |
398 | #define FIND 0 | |
399 | ||
1da177e4 | 400 | /** Convert to micro-seconds */ |
222f1806 | 401 | static inline __u64 tv_to_us(const struct timeval *tv) |
1da177e4 | 402 | { |
222f1806 LC |
403 | __u64 us = tv->tv_usec; |
404 | us += (__u64) tv->tv_sec * (__u64) 1000000; | |
405 | return us; | |
1da177e4 LT |
406 | } |
407 | ||
6db105db | 408 | static __u64 getCurUs(void) |
1da177e4 | 409 | { |
222f1806 LC |
410 | struct timeval tv; |
411 | do_gettimeofday(&tv); | |
412 | return tv_to_us(&tv); | |
1da177e4 LT |
413 | } |
414 | ||
1da177e4 LT |
415 | /* old include end */ |
416 | ||
417 | static char version[] __initdata = VERSION; | |
418 | ||
222f1806 LC |
419 | static int pktgen_remove_device(struct pktgen_thread *t, struct pktgen_dev *i); |
420 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname); | |
421 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, | |
422 | const char *ifname); | |
1da177e4 LT |
423 | static int pktgen_device_event(struct notifier_block *, unsigned long, void *); |
424 | static void pktgen_run_all_threads(void); | |
425 | static void pktgen_stop_all_threads_ifs(void); | |
426 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev); | |
222f1806 | 427 | static void pktgen_stop(struct pktgen_thread *t); |
1da177e4 | 428 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev); |
39df232f | 429 | |
222f1806 LC |
430 | static unsigned int scan_ip6(const char *s, char ip[16]); |
431 | static unsigned int fmt_ip6(char *s, const char ip[16]); | |
1da177e4 LT |
432 | |
433 | /* Module parameters, defaults. */ | |
222f1806 | 434 | static int pg_count_d = 1000; /* 1000 pkts by default */ |
f34fbb97 JK |
435 | static int pg_delay_d; |
436 | static int pg_clone_skb_d; | |
437 | static int debug; | |
1da177e4 | 438 | |
222fa076 | 439 | static DEFINE_MUTEX(pktgen_thread_lock); |
cdcdbe0b | 440 | static LIST_HEAD(pktgen_threads); |
1da177e4 | 441 | |
1da177e4 LT |
442 | static struct notifier_block pktgen_notifier_block = { |
443 | .notifier_call = pktgen_device_event, | |
444 | }; | |
445 | ||
1da177e4 | 446 | /* |
4ec93edb | 447 | * /proc handling functions |
1da177e4 LT |
448 | * |
449 | */ | |
450 | ||
d50a6b56 | 451 | static int pgctrl_show(struct seq_file *seq, void *v) |
222f1806 | 452 | { |
d50a6b56 SH |
453 | seq_puts(seq, VERSION); |
454 | return 0; | |
1da177e4 LT |
455 | } |
456 | ||
222f1806 LC |
457 | static ssize_t pgctrl_write(struct file *file, const char __user * buf, |
458 | size_t count, loff_t * ppos) | |
1da177e4 | 459 | { |
1da177e4 | 460 | int err = 0; |
d50a6b56 | 461 | char data[128]; |
1da177e4 | 462 | |
222f1806 LC |
463 | if (!capable(CAP_NET_ADMIN)) { |
464 | err = -EPERM; | |
1da177e4 | 465 | goto out; |
222f1806 | 466 | } |
1da177e4 | 467 | |
d50a6b56 SH |
468 | if (count > sizeof(data)) |
469 | count = sizeof(data); | |
1da177e4 | 470 | |
1da177e4 | 471 | if (copy_from_user(data, buf, count)) { |
b4099fab | 472 | err = -EFAULT; |
d50a6b56 | 473 | goto out; |
222f1806 LC |
474 | } |
475 | data[count - 1] = 0; /* Make string */ | |
1da177e4 | 476 | |
222f1806 | 477 | if (!strcmp(data, "stop")) |
1da177e4 LT |
478 | pktgen_stop_all_threads_ifs(); |
479 | ||
222f1806 | 480 | else if (!strcmp(data, "start")) |
1da177e4 LT |
481 | pktgen_run_all_threads(); |
482 | ||
222f1806 | 483 | else |
25a8b254 | 484 | printk(KERN_WARNING "pktgen: Unknown command: %s\n", data); |
1da177e4 LT |
485 | |
486 | err = count; | |
487 | ||
222f1806 LC |
488 | out: |
489 | return err; | |
1da177e4 LT |
490 | } |
491 | ||
d50a6b56 SH |
492 | static int pgctrl_open(struct inode *inode, struct file *file) |
493 | { | |
494 | return single_open(file, pgctrl_show, PDE(inode)->data); | |
495 | } | |
496 | ||
9a32144e | 497 | static const struct file_operations pktgen_fops = { |
222f1806 LC |
498 | .owner = THIS_MODULE, |
499 | .open = pgctrl_open, | |
500 | .read = seq_read, | |
501 | .llseek = seq_lseek, | |
502 | .write = pgctrl_write, | |
503 | .release = single_release, | |
d50a6b56 SH |
504 | }; |
505 | ||
506 | static int pktgen_if_show(struct seq_file *seq, void *v) | |
1da177e4 | 507 | { |
222f1806 LC |
508 | struct pktgen_dev *pkt_dev = seq->private; |
509 | __u64 sa; | |
510 | __u64 stopped; | |
511 | __u64 now = getCurUs(); | |
512 | ||
513 | seq_printf(seq, | |
514 | "Params: count %llu min_pkt_size: %u max_pkt_size: %u\n", | |
515 | (unsigned long long)pkt_dev->count, pkt_dev->min_pkt_size, | |
516 | pkt_dev->max_pkt_size); | |
517 | ||
518 | seq_printf(seq, | |
519 | " frags: %d delay: %u clone_skb: %d ifname: %s\n", | |
520 | pkt_dev->nfrags, | |
521 | 1000 * pkt_dev->delay_us + pkt_dev->delay_ns, | |
39df232f | 522 | pkt_dev->clone_skb, pkt_dev->odev->name); |
222f1806 LC |
523 | |
524 | seq_printf(seq, " flows: %u flowlen: %u\n", pkt_dev->cflows, | |
525 | pkt_dev->lflow); | |
526 | ||
45b270f8 RO |
527 | seq_printf(seq, |
528 | " queue_map_min: %u queue_map_max: %u\n", | |
529 | pkt_dev->queue_map_min, | |
530 | pkt_dev->queue_map_max); | |
531 | ||
222f1806 LC |
532 | if (pkt_dev->flags & F_IPV6) { |
533 | char b1[128], b2[128], b3[128]; | |
534 | fmt_ip6(b1, pkt_dev->in6_saddr.s6_addr); | |
535 | fmt_ip6(b2, pkt_dev->min_in6_saddr.s6_addr); | |
536 | fmt_ip6(b3, pkt_dev->max_in6_saddr.s6_addr); | |
537 | seq_printf(seq, | |
538 | " saddr: %s min_saddr: %s max_saddr: %s\n", b1, | |
539 | b2, b3); | |
540 | ||
541 | fmt_ip6(b1, pkt_dev->in6_daddr.s6_addr); | |
542 | fmt_ip6(b2, pkt_dev->min_in6_daddr.s6_addr); | |
543 | fmt_ip6(b3, pkt_dev->max_in6_daddr.s6_addr); | |
544 | seq_printf(seq, | |
545 | " daddr: %s min_daddr: %s max_daddr: %s\n", b1, | |
546 | b2, b3); | |
547 | ||
548 | } else | |
549 | seq_printf(seq, | |
550 | " dst_min: %s dst_max: %s\n src_min: %s src_max: %s\n", | |
551 | pkt_dev->dst_min, pkt_dev->dst_max, pkt_dev->src_min, | |
552 | pkt_dev->src_max); | |
1da177e4 | 553 | |
222f1806 | 554 | seq_puts(seq, " src_mac: "); |
1da177e4 | 555 | |
e174961c JB |
556 | seq_printf(seq, "%pM ", |
557 | is_zero_ether_addr(pkt_dev->src_mac) ? | |
558 | pkt_dev->odev->dev_addr : pkt_dev->src_mac); | |
222f1806 LC |
559 | |
560 | seq_printf(seq, "dst_mac: "); | |
e174961c | 561 | seq_printf(seq, "%pM\n", pkt_dev->dst_mac); |
222f1806 LC |
562 | |
563 | seq_printf(seq, | |
564 | " udp_src_min: %d udp_src_max: %d udp_dst_min: %d udp_dst_max: %d\n", | |
565 | pkt_dev->udp_src_min, pkt_dev->udp_src_max, | |
566 | pkt_dev->udp_dst_min, pkt_dev->udp_dst_max); | |
567 | ||
568 | seq_printf(seq, | |
ca6549af | 569 | " src_mac_count: %d dst_mac_count: %d\n", |
222f1806 | 570 | pkt_dev->src_mac_count, pkt_dev->dst_mac_count); |
1da177e4 | 571 | |
ca6549af SW |
572 | if (pkt_dev->nr_labels) { |
573 | unsigned i; | |
574 | seq_printf(seq, " mpls: "); | |
e71a4783 | 575 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
576 | seq_printf(seq, "%08x%s", ntohl(pkt_dev->labels[i]), |
577 | i == pkt_dev->nr_labels-1 ? "\n" : ", "); | |
578 | } | |
579 | ||
34954ddc FF |
580 | if (pkt_dev->vlan_id != 0xffff) { |
581 | seq_printf(seq, " vlan_id: %u vlan_p: %u vlan_cfi: %u\n", | |
582 | pkt_dev->vlan_id, pkt_dev->vlan_p, pkt_dev->vlan_cfi); | |
583 | } | |
584 | ||
585 | if (pkt_dev->svlan_id != 0xffff) { | |
586 | seq_printf(seq, " svlan_id: %u vlan_p: %u vlan_cfi: %u\n", | |
587 | pkt_dev->svlan_id, pkt_dev->svlan_p, pkt_dev->svlan_cfi); | |
588 | } | |
589 | ||
1ca7768c FF |
590 | if (pkt_dev->tos) { |
591 | seq_printf(seq, " tos: 0x%02x\n", pkt_dev->tos); | |
592 | } | |
593 | ||
594 | if (pkt_dev->traffic_class) { | |
595 | seq_printf(seq, " traffic_class: 0x%02x\n", pkt_dev->traffic_class); | |
596 | } | |
597 | ||
ca6549af SW |
598 | seq_printf(seq, " Flags: "); |
599 | ||
222f1806 LC |
600 | if (pkt_dev->flags & F_IPV6) |
601 | seq_printf(seq, "IPV6 "); | |
1da177e4 | 602 | |
222f1806 LC |
603 | if (pkt_dev->flags & F_IPSRC_RND) |
604 | seq_printf(seq, "IPSRC_RND "); | |
1da177e4 | 605 | |
222f1806 LC |
606 | if (pkt_dev->flags & F_IPDST_RND) |
607 | seq_printf(seq, "IPDST_RND "); | |
1da177e4 | 608 | |
222f1806 LC |
609 | if (pkt_dev->flags & F_TXSIZE_RND) |
610 | seq_printf(seq, "TXSIZE_RND "); | |
1da177e4 | 611 | |
222f1806 LC |
612 | if (pkt_dev->flags & F_UDPSRC_RND) |
613 | seq_printf(seq, "UDPSRC_RND "); | |
1da177e4 | 614 | |
222f1806 LC |
615 | if (pkt_dev->flags & F_UDPDST_RND) |
616 | seq_printf(seq, "UDPDST_RND "); | |
1da177e4 | 617 | |
ca6549af SW |
618 | if (pkt_dev->flags & F_MPLS_RND) |
619 | seq_printf(seq, "MPLS_RND "); | |
620 | ||
45b270f8 RO |
621 | if (pkt_dev->flags & F_QUEUE_MAP_RND) |
622 | seq_printf(seq, "QUEUE_MAP_RND "); | |
623 | ||
e6fce5b9 RO |
624 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) |
625 | seq_printf(seq, "QUEUE_MAP_CPU "); | |
626 | ||
007a531b JHS |
627 | if (pkt_dev->cflows) { |
628 | if (pkt_dev->flags & F_FLOW_SEQ) | |
629 | seq_printf(seq, "FLOW_SEQ "); /*in sequence flows*/ | |
630 | else | |
631 | seq_printf(seq, "FLOW_RND "); | |
632 | } | |
633 | ||
a553e4a6 JHS |
634 | #ifdef CONFIG_XFRM |
635 | if (pkt_dev->flags & F_IPSEC_ON) | |
636 | seq_printf(seq, "IPSEC "); | |
637 | #endif | |
638 | ||
222f1806 LC |
639 | if (pkt_dev->flags & F_MACSRC_RND) |
640 | seq_printf(seq, "MACSRC_RND "); | |
1da177e4 | 641 | |
222f1806 LC |
642 | if (pkt_dev->flags & F_MACDST_RND) |
643 | seq_printf(seq, "MACDST_RND "); | |
1da177e4 | 644 | |
34954ddc FF |
645 | if (pkt_dev->flags & F_VID_RND) |
646 | seq_printf(seq, "VID_RND "); | |
647 | ||
648 | if (pkt_dev->flags & F_SVID_RND) | |
649 | seq_printf(seq, "SVID_RND "); | |
650 | ||
222f1806 LC |
651 | seq_puts(seq, "\n"); |
652 | ||
653 | sa = pkt_dev->started_at; | |
654 | stopped = pkt_dev->stopped_at; | |
655 | if (pkt_dev->running) | |
656 | stopped = now; /* not really stopped, more like last-running-at */ | |
1da177e4 | 657 | |
222f1806 LC |
658 | seq_printf(seq, |
659 | "Current:\n pkts-sofar: %llu errors: %llu\n started: %lluus stopped: %lluus idle: %lluus\n", | |
660 | (unsigned long long)pkt_dev->sofar, | |
661 | (unsigned long long)pkt_dev->errors, (unsigned long long)sa, | |
662 | (unsigned long long)stopped, | |
663 | (unsigned long long)pkt_dev->idle_acc); | |
1da177e4 | 664 | |
222f1806 LC |
665 | seq_printf(seq, |
666 | " seq_num: %d cur_dst_mac_offset: %d cur_src_mac_offset: %d\n", | |
d50a6b56 SH |
667 | pkt_dev->seq_num, pkt_dev->cur_dst_mac_offset, |
668 | pkt_dev->cur_src_mac_offset); | |
1da177e4 | 669 | |
222f1806 | 670 | if (pkt_dev->flags & F_IPV6) { |
1da177e4 | 671 | char b1[128], b2[128]; |
222f1806 LC |
672 | fmt_ip6(b1, pkt_dev->cur_in6_daddr.s6_addr); |
673 | fmt_ip6(b2, pkt_dev->cur_in6_saddr.s6_addr); | |
674 | seq_printf(seq, " cur_saddr: %s cur_daddr: %s\n", b2, b1); | |
675 | } else | |
676 | seq_printf(seq, " cur_saddr: 0x%x cur_daddr: 0x%x\n", | |
d50a6b56 | 677 | pkt_dev->cur_saddr, pkt_dev->cur_daddr); |
1da177e4 | 678 | |
222f1806 | 679 | seq_printf(seq, " cur_udp_dst: %d cur_udp_src: %d\n", |
d50a6b56 | 680 | pkt_dev->cur_udp_dst, pkt_dev->cur_udp_src); |
1da177e4 | 681 | |
45b270f8 RO |
682 | seq_printf(seq, " cur_queue_map: %u\n", pkt_dev->cur_queue_map); |
683 | ||
222f1806 | 684 | seq_printf(seq, " flows: %u\n", pkt_dev->nflows); |
1da177e4 LT |
685 | |
686 | if (pkt_dev->result[0]) | |
222f1806 | 687 | seq_printf(seq, "Result: %s\n", pkt_dev->result); |
1da177e4 | 688 | else |
222f1806 | 689 | seq_printf(seq, "Result: Idle\n"); |
1da177e4 | 690 | |
d50a6b56 | 691 | return 0; |
1da177e4 LT |
692 | } |
693 | ||
ca6549af | 694 | |
1ca7768c | 695 | static int hex32_arg(const char __user *user_buffer, unsigned long maxlen, __u32 *num) |
ca6549af SW |
696 | { |
697 | int i = 0; | |
698 | *num = 0; | |
699 | ||
e71a4783 | 700 | for (; i < maxlen; i++) { |
ca6549af SW |
701 | char c; |
702 | *num <<= 4; | |
703 | if (get_user(c, &user_buffer[i])) | |
704 | return -EFAULT; | |
705 | if ((c >= '0') && (c <= '9')) | |
706 | *num |= c - '0'; | |
707 | else if ((c >= 'a') && (c <= 'f')) | |
708 | *num |= c - 'a' + 10; | |
709 | else if ((c >= 'A') && (c <= 'F')) | |
710 | *num |= c - 'A' + 10; | |
711 | else | |
712 | break; | |
713 | } | |
714 | return i; | |
715 | } | |
716 | ||
222f1806 LC |
717 | static int count_trail_chars(const char __user * user_buffer, |
718 | unsigned int maxlen) | |
1da177e4 LT |
719 | { |
720 | int i; | |
721 | ||
722 | for (i = 0; i < maxlen; i++) { | |
222f1806 LC |
723 | char c; |
724 | if (get_user(c, &user_buffer[i])) | |
725 | return -EFAULT; | |
726 | switch (c) { | |
1da177e4 LT |
727 | case '\"': |
728 | case '\n': | |
729 | case '\r': | |
730 | case '\t': | |
731 | case ' ': | |
732 | case '=': | |
733 | break; | |
734 | default: | |
735 | goto done; | |
3ff50b79 | 736 | } |
1da177e4 LT |
737 | } |
738 | done: | |
739 | return i; | |
740 | } | |
741 | ||
222f1806 LC |
742 | static unsigned long num_arg(const char __user * user_buffer, |
743 | unsigned long maxlen, unsigned long *num) | |
1da177e4 LT |
744 | { |
745 | int i = 0; | |
746 | *num = 0; | |
222f1806 LC |
747 | |
748 | for (; i < maxlen; i++) { | |
749 | char c; | |
750 | if (get_user(c, &user_buffer[i])) | |
751 | return -EFAULT; | |
752 | if ((c >= '0') && (c <= '9')) { | |
1da177e4 | 753 | *num *= 10; |
222f1806 | 754 | *num += c - '0'; |
1da177e4 LT |
755 | } else |
756 | break; | |
757 | } | |
758 | return i; | |
759 | } | |
760 | ||
222f1806 | 761 | static int strn_len(const char __user * user_buffer, unsigned int maxlen) |
1da177e4 LT |
762 | { |
763 | int i = 0; | |
764 | ||
222f1806 LC |
765 | for (; i < maxlen; i++) { |
766 | char c; | |
767 | if (get_user(c, &user_buffer[i])) | |
768 | return -EFAULT; | |
769 | switch (c) { | |
1da177e4 LT |
770 | case '\"': |
771 | case '\n': | |
772 | case '\r': | |
773 | case '\t': | |
774 | case ' ': | |
775 | goto done_str; | |
776 | break; | |
777 | default: | |
778 | break; | |
3ff50b79 | 779 | } |
1da177e4 LT |
780 | } |
781 | done_str: | |
1da177e4 LT |
782 | return i; |
783 | } | |
784 | ||
ca6549af SW |
785 | static ssize_t get_labels(const char __user *buffer, struct pktgen_dev *pkt_dev) |
786 | { | |
787 | unsigned n = 0; | |
788 | char c; | |
789 | ssize_t i = 0; | |
790 | int len; | |
791 | ||
792 | pkt_dev->nr_labels = 0; | |
793 | do { | |
794 | __u32 tmp; | |
1ca7768c | 795 | len = hex32_arg(&buffer[i], 8, &tmp); |
ca6549af SW |
796 | if (len <= 0) |
797 | return len; | |
798 | pkt_dev->labels[n] = htonl(tmp); | |
799 | if (pkt_dev->labels[n] & MPLS_STACK_BOTTOM) | |
800 | pkt_dev->flags |= F_MPLS_RND; | |
801 | i += len; | |
802 | if (get_user(c, &buffer[i])) | |
803 | return -EFAULT; | |
804 | i++; | |
805 | n++; | |
806 | if (n >= MAX_MPLS_LABELS) | |
807 | return -E2BIG; | |
e71a4783 | 808 | } while (c == ','); |
ca6549af SW |
809 | |
810 | pkt_dev->nr_labels = n; | |
811 | return i; | |
812 | } | |
813 | ||
222f1806 LC |
814 | static ssize_t pktgen_if_write(struct file *file, |
815 | const char __user * user_buffer, size_t count, | |
816 | loff_t * offset) | |
1da177e4 | 817 | { |
222f1806 LC |
818 | struct seq_file *seq = (struct seq_file *)file->private_data; |
819 | struct pktgen_dev *pkt_dev = seq->private; | |
1da177e4 LT |
820 | int i = 0, max, len; |
821 | char name[16], valstr[32]; | |
822 | unsigned long value = 0; | |
222f1806 LC |
823 | char *pg_result = NULL; |
824 | int tmp = 0; | |
1da177e4 | 825 | char buf[128]; |
222f1806 LC |
826 | |
827 | pg_result = &(pkt_dev->result[0]); | |
828 | ||
1da177e4 | 829 | if (count < 1) { |
25a8b254 | 830 | printk(KERN_WARNING "pktgen: wrong command format\n"); |
1da177e4 LT |
831 | return -EINVAL; |
832 | } | |
222f1806 | 833 | |
1da177e4 LT |
834 | max = count - i; |
835 | tmp = count_trail_chars(&user_buffer[i], max); | |
222f1806 | 836 | if (tmp < 0) { |
25a8b254 | 837 | printk(KERN_WARNING "pktgen: illegal format\n"); |
222f1806 | 838 | return tmp; |
1da177e4 | 839 | } |
222f1806 LC |
840 | i += tmp; |
841 | ||
1da177e4 LT |
842 | /* Read variable name */ |
843 | ||
844 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 LC |
845 | if (len < 0) { |
846 | return len; | |
847 | } | |
1da177e4 | 848 | memset(name, 0, sizeof(name)); |
222f1806 | 849 | if (copy_from_user(name, &user_buffer[i], len)) |
1da177e4 LT |
850 | return -EFAULT; |
851 | i += len; | |
222f1806 LC |
852 | |
853 | max = count - i; | |
1da177e4 | 854 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 LC |
855 | if (len < 0) |
856 | return len; | |
857 | ||
1da177e4 LT |
858 | i += len; |
859 | ||
860 | if (debug) { | |
222f1806 LC |
861 | char tb[count + 1]; |
862 | if (copy_from_user(tb, user_buffer, count)) | |
1da177e4 | 863 | return -EFAULT; |
222f1806 | 864 | tb[count] = 0; |
25a8b254 | 865 | printk(KERN_DEBUG "pktgen: %s,%lu buffer -:%s:-\n", name, |
222f1806 LC |
866 | (unsigned long)count, tb); |
867 | } | |
1da177e4 LT |
868 | |
869 | if (!strcmp(name, "min_pkt_size")) { | |
870 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
871 | if (len < 0) { |
872 | return len; | |
873 | } | |
1da177e4 | 874 | i += len; |
222f1806 LC |
875 | if (value < 14 + 20 + 8) |
876 | value = 14 + 20 + 8; | |
877 | if (value != pkt_dev->min_pkt_size) { | |
878 | pkt_dev->min_pkt_size = value; | |
879 | pkt_dev->cur_pkt_size = value; | |
880 | } | |
881 | sprintf(pg_result, "OK: min_pkt_size=%u", | |
882 | pkt_dev->min_pkt_size); | |
1da177e4 LT |
883 | return count; |
884 | } | |
885 | ||
222f1806 | 886 | if (!strcmp(name, "max_pkt_size")) { |
1da177e4 | 887 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
888 | if (len < 0) { |
889 | return len; | |
890 | } | |
1da177e4 | 891 | i += len; |
222f1806 LC |
892 | if (value < 14 + 20 + 8) |
893 | value = 14 + 20 + 8; | |
894 | if (value != pkt_dev->max_pkt_size) { | |
895 | pkt_dev->max_pkt_size = value; | |
896 | pkt_dev->cur_pkt_size = value; | |
897 | } | |
898 | sprintf(pg_result, "OK: max_pkt_size=%u", | |
899 | pkt_dev->max_pkt_size); | |
1da177e4 LT |
900 | return count; |
901 | } | |
902 | ||
222f1806 | 903 | /* Shortcut for min = max */ |
1da177e4 LT |
904 | |
905 | if (!strcmp(name, "pkt_size")) { | |
906 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
907 | if (len < 0) { |
908 | return len; | |
909 | } | |
1da177e4 | 910 | i += len; |
222f1806 LC |
911 | if (value < 14 + 20 + 8) |
912 | value = 14 + 20 + 8; | |
913 | if (value != pkt_dev->min_pkt_size) { | |
914 | pkt_dev->min_pkt_size = value; | |
915 | pkt_dev->max_pkt_size = value; | |
916 | pkt_dev->cur_pkt_size = value; | |
917 | } | |
1da177e4 LT |
918 | sprintf(pg_result, "OK: pkt_size=%u", pkt_dev->min_pkt_size); |
919 | return count; | |
920 | } | |
921 | ||
222f1806 | 922 | if (!strcmp(name, "debug")) { |
1da177e4 | 923 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
924 | if (len < 0) { |
925 | return len; | |
926 | } | |
1da177e4 | 927 | i += len; |
222f1806 | 928 | debug = value; |
1da177e4 LT |
929 | sprintf(pg_result, "OK: debug=%u", debug); |
930 | return count; | |
931 | } | |
932 | ||
222f1806 | 933 | if (!strcmp(name, "frags")) { |
1da177e4 | 934 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
935 | if (len < 0) { |
936 | return len; | |
937 | } | |
1da177e4 LT |
938 | i += len; |
939 | pkt_dev->nfrags = value; | |
940 | sprintf(pg_result, "OK: frags=%u", pkt_dev->nfrags); | |
941 | return count; | |
942 | } | |
943 | if (!strcmp(name, "delay")) { | |
944 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
945 | if (len < 0) { |
946 | return len; | |
947 | } | |
1da177e4 LT |
948 | i += len; |
949 | if (value == 0x7FFFFFFF) { | |
950 | pkt_dev->delay_us = 0x7FFFFFFF; | |
951 | pkt_dev->delay_ns = 0; | |
952 | } else { | |
953 | pkt_dev->delay_us = value / 1000; | |
954 | pkt_dev->delay_ns = value % 1000; | |
955 | } | |
222f1806 LC |
956 | sprintf(pg_result, "OK: delay=%u", |
957 | 1000 * pkt_dev->delay_us + pkt_dev->delay_ns); | |
1da177e4 LT |
958 | return count; |
959 | } | |
222f1806 | 960 | if (!strcmp(name, "udp_src_min")) { |
1da177e4 | 961 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
962 | if (len < 0) { |
963 | return len; | |
964 | } | |
1da177e4 | 965 | i += len; |
222f1806 LC |
966 | if (value != pkt_dev->udp_src_min) { |
967 | pkt_dev->udp_src_min = value; | |
968 | pkt_dev->cur_udp_src = value; | |
969 | } | |
1da177e4 LT |
970 | sprintf(pg_result, "OK: udp_src_min=%u", pkt_dev->udp_src_min); |
971 | return count; | |
972 | } | |
222f1806 | 973 | if (!strcmp(name, "udp_dst_min")) { |
1da177e4 | 974 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
975 | if (len < 0) { |
976 | return len; | |
977 | } | |
1da177e4 | 978 | i += len; |
222f1806 LC |
979 | if (value != pkt_dev->udp_dst_min) { |
980 | pkt_dev->udp_dst_min = value; | |
981 | pkt_dev->cur_udp_dst = value; | |
982 | } | |
1da177e4 LT |
983 | sprintf(pg_result, "OK: udp_dst_min=%u", pkt_dev->udp_dst_min); |
984 | return count; | |
985 | } | |
222f1806 | 986 | if (!strcmp(name, "udp_src_max")) { |
1da177e4 | 987 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
988 | if (len < 0) { |
989 | return len; | |
990 | } | |
1da177e4 | 991 | i += len; |
222f1806 LC |
992 | if (value != pkt_dev->udp_src_max) { |
993 | pkt_dev->udp_src_max = value; | |
994 | pkt_dev->cur_udp_src = value; | |
995 | } | |
1da177e4 LT |
996 | sprintf(pg_result, "OK: udp_src_max=%u", pkt_dev->udp_src_max); |
997 | return count; | |
998 | } | |
222f1806 | 999 | if (!strcmp(name, "udp_dst_max")) { |
1da177e4 | 1000 | len = num_arg(&user_buffer[i], 10, &value); |
222f1806 LC |
1001 | if (len < 0) { |
1002 | return len; | |
1003 | } | |
1da177e4 | 1004 | i += len; |
222f1806 LC |
1005 | if (value != pkt_dev->udp_dst_max) { |
1006 | pkt_dev->udp_dst_max = value; | |
1007 | pkt_dev->cur_udp_dst = value; | |
1008 | } | |
1da177e4 LT |
1009 | sprintf(pg_result, "OK: udp_dst_max=%u", pkt_dev->udp_dst_max); |
1010 | return count; | |
1011 | } | |
1012 | if (!strcmp(name, "clone_skb")) { | |
1013 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1014 | if (len < 0) { |
1015 | return len; | |
1016 | } | |
1da177e4 | 1017 | i += len; |
222f1806 LC |
1018 | pkt_dev->clone_skb = value; |
1019 | ||
1da177e4 LT |
1020 | sprintf(pg_result, "OK: clone_skb=%d", pkt_dev->clone_skb); |
1021 | return count; | |
1022 | } | |
1023 | if (!strcmp(name, "count")) { | |
1024 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1025 | if (len < 0) { |
1026 | return len; | |
1027 | } | |
1da177e4 LT |
1028 | i += len; |
1029 | pkt_dev->count = value; | |
1030 | sprintf(pg_result, "OK: count=%llu", | |
222f1806 | 1031 | (unsigned long long)pkt_dev->count); |
1da177e4 LT |
1032 | return count; |
1033 | } | |
1034 | if (!strcmp(name, "src_mac_count")) { | |
1035 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1036 | if (len < 0) { |
1037 | return len; | |
1038 | } | |
1da177e4 LT |
1039 | i += len; |
1040 | if (pkt_dev->src_mac_count != value) { | |
222f1806 LC |
1041 | pkt_dev->src_mac_count = value; |
1042 | pkt_dev->cur_src_mac_offset = 0; | |
1043 | } | |
1044 | sprintf(pg_result, "OK: src_mac_count=%d", | |
1045 | pkt_dev->src_mac_count); | |
1da177e4 LT |
1046 | return count; |
1047 | } | |
1048 | if (!strcmp(name, "dst_mac_count")) { | |
1049 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1050 | if (len < 0) { |
1051 | return len; | |
1052 | } | |
1da177e4 LT |
1053 | i += len; |
1054 | if (pkt_dev->dst_mac_count != value) { | |
222f1806 LC |
1055 | pkt_dev->dst_mac_count = value; |
1056 | pkt_dev->cur_dst_mac_offset = 0; | |
1057 | } | |
1058 | sprintf(pg_result, "OK: dst_mac_count=%d", | |
1059 | pkt_dev->dst_mac_count); | |
1da177e4 LT |
1060 | return count; |
1061 | } | |
1062 | if (!strcmp(name, "flag")) { | |
222f1806 LC |
1063 | char f[32]; |
1064 | memset(f, 0, 32); | |
1da177e4 | 1065 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1066 | if (len < 0) { |
1067 | return len; | |
1068 | } | |
1da177e4 LT |
1069 | if (copy_from_user(f, &user_buffer[i], len)) |
1070 | return -EFAULT; | |
1071 | i += len; | |
222f1806 LC |
1072 | if (strcmp(f, "IPSRC_RND") == 0) |
1073 | pkt_dev->flags |= F_IPSRC_RND; | |
1074 | ||
1075 | else if (strcmp(f, "!IPSRC_RND") == 0) | |
1076 | pkt_dev->flags &= ~F_IPSRC_RND; | |
1077 | ||
1078 | else if (strcmp(f, "TXSIZE_RND") == 0) | |
1079 | pkt_dev->flags |= F_TXSIZE_RND; | |
1080 | ||
1081 | else if (strcmp(f, "!TXSIZE_RND") == 0) | |
1082 | pkt_dev->flags &= ~F_TXSIZE_RND; | |
1083 | ||
1084 | else if (strcmp(f, "IPDST_RND") == 0) | |
1085 | pkt_dev->flags |= F_IPDST_RND; | |
1086 | ||
1087 | else if (strcmp(f, "!IPDST_RND") == 0) | |
1088 | pkt_dev->flags &= ~F_IPDST_RND; | |
1089 | ||
1090 | else if (strcmp(f, "UDPSRC_RND") == 0) | |
1091 | pkt_dev->flags |= F_UDPSRC_RND; | |
1092 | ||
1093 | else if (strcmp(f, "!UDPSRC_RND") == 0) | |
1094 | pkt_dev->flags &= ~F_UDPSRC_RND; | |
1095 | ||
1096 | else if (strcmp(f, "UDPDST_RND") == 0) | |
1097 | pkt_dev->flags |= F_UDPDST_RND; | |
1098 | ||
1099 | else if (strcmp(f, "!UDPDST_RND") == 0) | |
1100 | pkt_dev->flags &= ~F_UDPDST_RND; | |
1101 | ||
1102 | else if (strcmp(f, "MACSRC_RND") == 0) | |
1103 | pkt_dev->flags |= F_MACSRC_RND; | |
1104 | ||
1105 | else if (strcmp(f, "!MACSRC_RND") == 0) | |
1106 | pkt_dev->flags &= ~F_MACSRC_RND; | |
1107 | ||
1108 | else if (strcmp(f, "MACDST_RND") == 0) | |
1109 | pkt_dev->flags |= F_MACDST_RND; | |
1110 | ||
1111 | else if (strcmp(f, "!MACDST_RND") == 0) | |
1112 | pkt_dev->flags &= ~F_MACDST_RND; | |
1113 | ||
ca6549af SW |
1114 | else if (strcmp(f, "MPLS_RND") == 0) |
1115 | pkt_dev->flags |= F_MPLS_RND; | |
1116 | ||
1117 | else if (strcmp(f, "!MPLS_RND") == 0) | |
1118 | pkt_dev->flags &= ~F_MPLS_RND; | |
1119 | ||
34954ddc FF |
1120 | else if (strcmp(f, "VID_RND") == 0) |
1121 | pkt_dev->flags |= F_VID_RND; | |
1122 | ||
1123 | else if (strcmp(f, "!VID_RND") == 0) | |
1124 | pkt_dev->flags &= ~F_VID_RND; | |
1125 | ||
1126 | else if (strcmp(f, "SVID_RND") == 0) | |
1127 | pkt_dev->flags |= F_SVID_RND; | |
1128 | ||
1129 | else if (strcmp(f, "!SVID_RND") == 0) | |
1130 | pkt_dev->flags &= ~F_SVID_RND; | |
1131 | ||
007a531b JHS |
1132 | else if (strcmp(f, "FLOW_SEQ") == 0) |
1133 | pkt_dev->flags |= F_FLOW_SEQ; | |
1134 | ||
45b270f8 RO |
1135 | else if (strcmp(f, "QUEUE_MAP_RND") == 0) |
1136 | pkt_dev->flags |= F_QUEUE_MAP_RND; | |
1137 | ||
1138 | else if (strcmp(f, "!QUEUE_MAP_RND") == 0) | |
1139 | pkt_dev->flags &= ~F_QUEUE_MAP_RND; | |
e6fce5b9 RO |
1140 | |
1141 | else if (strcmp(f, "QUEUE_MAP_CPU") == 0) | |
1142 | pkt_dev->flags |= F_QUEUE_MAP_CPU; | |
1143 | ||
1144 | else if (strcmp(f, "!QUEUE_MAP_CPU") == 0) | |
1145 | pkt_dev->flags &= ~F_QUEUE_MAP_CPU; | |
a553e4a6 JHS |
1146 | #ifdef CONFIG_XFRM |
1147 | else if (strcmp(f, "IPSEC") == 0) | |
1148 | pkt_dev->flags |= F_IPSEC_ON; | |
1149 | #endif | |
1150 | ||
1ca7768c FF |
1151 | else if (strcmp(f, "!IPV6") == 0) |
1152 | pkt_dev->flags &= ~F_IPV6; | |
1153 | ||
222f1806 LC |
1154 | else { |
1155 | sprintf(pg_result, | |
1156 | "Flag -:%s:- unknown\nAvailable flags, (prepend ! to un-set flag):\n%s", | |
1157 | f, | |
1ca7768c | 1158 | "IPSRC_RND, IPDST_RND, UDPSRC_RND, UDPDST_RND, " |
a553e4a6 | 1159 | "MACSRC_RND, MACDST_RND, TXSIZE_RND, IPV6, MPLS_RND, VID_RND, SVID_RND, FLOW_SEQ, IPSEC\n"); |
222f1806 LC |
1160 | return count; |
1161 | } | |
1da177e4 LT |
1162 | sprintf(pg_result, "OK: flags=0x%x", pkt_dev->flags); |
1163 | return count; | |
1164 | } | |
1165 | if (!strcmp(name, "dst_min") || !strcmp(name, "dst")) { | |
1166 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_min) - 1); | |
222f1806 LC |
1167 | if (len < 0) { |
1168 | return len; | |
1169 | } | |
1da177e4 | 1170 | |
222f1806 | 1171 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1172 | return -EFAULT; |
222f1806 LC |
1173 | buf[len] = 0; |
1174 | if (strcmp(buf, pkt_dev->dst_min) != 0) { | |
1175 | memset(pkt_dev->dst_min, 0, sizeof(pkt_dev->dst_min)); | |
1176 | strncpy(pkt_dev->dst_min, buf, len); | |
1177 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
1178 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
1179 | } | |
1180 | if (debug) | |
25a8b254 | 1181 | printk(KERN_DEBUG "pktgen: dst_min set to: %s\n", |
222f1806 LC |
1182 | pkt_dev->dst_min); |
1183 | i += len; | |
1da177e4 LT |
1184 | sprintf(pg_result, "OK: dst_min=%s", pkt_dev->dst_min); |
1185 | return count; | |
1186 | } | |
1187 | if (!strcmp(name, "dst_max")) { | |
1188 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->dst_max) - 1); | |
222f1806 LC |
1189 | if (len < 0) { |
1190 | return len; | |
1191 | } | |
1da177e4 | 1192 | |
222f1806 | 1193 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 LT |
1194 | return -EFAULT; |
1195 | ||
222f1806 LC |
1196 | buf[len] = 0; |
1197 | if (strcmp(buf, pkt_dev->dst_max) != 0) { | |
1198 | memset(pkt_dev->dst_max, 0, sizeof(pkt_dev->dst_max)); | |
1199 | strncpy(pkt_dev->dst_max, buf, len); | |
1200 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
1201 | pkt_dev->cur_daddr = pkt_dev->daddr_max; | |
1202 | } | |
1203 | if (debug) | |
25a8b254 | 1204 | printk(KERN_DEBUG "pktgen: dst_max set to: %s\n", |
222f1806 | 1205 | pkt_dev->dst_max); |
1da177e4 LT |
1206 | i += len; |
1207 | sprintf(pg_result, "OK: dst_max=%s", pkt_dev->dst_max); | |
1208 | return count; | |
1209 | } | |
1210 | if (!strcmp(name, "dst6")) { | |
1211 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1212 | if (len < 0) |
1213 | return len; | |
1da177e4 LT |
1214 | |
1215 | pkt_dev->flags |= F_IPV6; | |
1216 | ||
222f1806 | 1217 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1218 | return -EFAULT; |
222f1806 | 1219 | buf[len] = 0; |
1da177e4 LT |
1220 | |
1221 | scan_ip6(buf, pkt_dev->in6_daddr.s6_addr); | |
222f1806 | 1222 | fmt_ip6(buf, pkt_dev->in6_daddr.s6_addr); |
1da177e4 LT |
1223 | |
1224 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, &pkt_dev->in6_daddr); | |
1225 | ||
222f1806 | 1226 | if (debug) |
25a8b254 | 1227 | printk(KERN_DEBUG "pktgen: dst6 set to: %s\n", buf); |
1da177e4 | 1228 | |
222f1806 | 1229 | i += len; |
1da177e4 LT |
1230 | sprintf(pg_result, "OK: dst6=%s", buf); |
1231 | return count; | |
1232 | } | |
1233 | if (!strcmp(name, "dst6_min")) { | |
1234 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1235 | if (len < 0) |
1236 | return len; | |
1da177e4 LT |
1237 | |
1238 | pkt_dev->flags |= F_IPV6; | |
1239 | ||
222f1806 | 1240 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1241 | return -EFAULT; |
222f1806 | 1242 | buf[len] = 0; |
1da177e4 LT |
1243 | |
1244 | scan_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); | |
222f1806 | 1245 | fmt_ip6(buf, pkt_dev->min_in6_daddr.s6_addr); |
1da177e4 | 1246 | |
222f1806 LC |
1247 | ipv6_addr_copy(&pkt_dev->cur_in6_daddr, |
1248 | &pkt_dev->min_in6_daddr); | |
1249 | if (debug) | |
25a8b254 | 1250 | printk(KERN_DEBUG "pktgen: dst6_min set to: %s\n", buf); |
1da177e4 | 1251 | |
222f1806 | 1252 | i += len; |
1da177e4 LT |
1253 | sprintf(pg_result, "OK: dst6_min=%s", buf); |
1254 | return count; | |
1255 | } | |
1256 | if (!strcmp(name, "dst6_max")) { | |
1257 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1258 | if (len < 0) |
1259 | return len; | |
1da177e4 LT |
1260 | |
1261 | pkt_dev->flags |= F_IPV6; | |
1262 | ||
222f1806 | 1263 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1264 | return -EFAULT; |
222f1806 | 1265 | buf[len] = 0; |
1da177e4 LT |
1266 | |
1267 | scan_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); | |
222f1806 | 1268 | fmt_ip6(buf, pkt_dev->max_in6_daddr.s6_addr); |
1da177e4 | 1269 | |
222f1806 | 1270 | if (debug) |
25a8b254 | 1271 | printk(KERN_DEBUG "pktgen: dst6_max set to: %s\n", buf); |
1da177e4 | 1272 | |
222f1806 | 1273 | i += len; |
1da177e4 LT |
1274 | sprintf(pg_result, "OK: dst6_max=%s", buf); |
1275 | return count; | |
1276 | } | |
1277 | if (!strcmp(name, "src6")) { | |
1278 | len = strn_len(&user_buffer[i], sizeof(buf) - 1); | |
222f1806 LC |
1279 | if (len < 0) |
1280 | return len; | |
1da177e4 LT |
1281 | |
1282 | pkt_dev->flags |= F_IPV6; | |
1283 | ||
222f1806 | 1284 | if (copy_from_user(buf, &user_buffer[i], len)) |
1da177e4 | 1285 | return -EFAULT; |
222f1806 | 1286 | buf[len] = 0; |
1da177e4 LT |
1287 | |
1288 | scan_ip6(buf, pkt_dev->in6_saddr.s6_addr); | |
222f1806 | 1289 | fmt_ip6(buf, pkt_dev->in6_saddr.s6_addr); |
1da177e4 LT |
1290 | |
1291 | ipv6_addr_copy(&pkt_dev->cur_in6_saddr, &pkt_dev->in6_saddr); | |
1292 | ||
222f1806 | 1293 | if (debug) |
25a8b254 | 1294 | printk(KERN_DEBUG "pktgen: src6 set to: %s\n", buf); |
222f1806 LC |
1295 | |
1296 | i += len; | |
1da177e4 LT |
1297 | sprintf(pg_result, "OK: src6=%s", buf); |
1298 | return count; | |
1299 | } | |
1300 | if (!strcmp(name, "src_min")) { | |
1301 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_min) - 1); | |
222f1806 LC |
1302 | if (len < 0) { |
1303 | return len; | |
1304 | } | |
1305 | if (copy_from_user(buf, &user_buffer[i], len)) | |
1da177e4 | 1306 | return -EFAULT; |
222f1806 LC |
1307 | buf[len] = 0; |
1308 | if (strcmp(buf, pkt_dev->src_min) != 0) { | |
1309 | memset(pkt_dev->src_min, 0, sizeof(pkt_dev->src_min)); | |
1310 | strncpy(pkt_dev->src_min, buf, len); | |
1311 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); | |
1312 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
1313 | } | |
1314 | if (debug) | |
25a8b254 | 1315 | printk(KERN_DEBUG "pktgen: src_min set to: %s\n", |
222f1806 | 1316 | pkt_dev->src_min); |
1da177e4 LT |
1317 | i += len; |
1318 | sprintf(pg_result, "OK: src_min=%s", pkt_dev->src_min); | |
1319 | return count; | |
1320 | } | |
1321 | if (!strcmp(name, "src_max")) { | |
1322 | len = strn_len(&user_buffer[i], sizeof(pkt_dev->src_max) - 1); | |
222f1806 LC |
1323 | if (len < 0) { |
1324 | return len; | |
1325 | } | |
1326 | if (copy_from_user(buf, &user_buffer[i], len)) | |
1da177e4 | 1327 | return -EFAULT; |
222f1806 LC |
1328 | buf[len] = 0; |
1329 | if (strcmp(buf, pkt_dev->src_max) != 0) { | |
1330 | memset(pkt_dev->src_max, 0, sizeof(pkt_dev->src_max)); | |
1331 | strncpy(pkt_dev->src_max, buf, len); | |
1332 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
1333 | pkt_dev->cur_saddr = pkt_dev->saddr_max; | |
1334 | } | |
1335 | if (debug) | |
25a8b254 | 1336 | printk(KERN_DEBUG "pktgen: src_max set to: %s\n", |
222f1806 | 1337 | pkt_dev->src_max); |
1da177e4 LT |
1338 | i += len; |
1339 | sprintf(pg_result, "OK: src_max=%s", pkt_dev->src_max); | |
1340 | return count; | |
1341 | } | |
1342 | if (!strcmp(name, "dst_mac")) { | |
1343 | char *v = valstr; | |
f404e9a6 | 1344 | unsigned char old_dmac[ETH_ALEN]; |
1da177e4 | 1345 | unsigned char *m = pkt_dev->dst_mac; |
f404e9a6 | 1346 | memcpy(old_dmac, pkt_dev->dst_mac, ETH_ALEN); |
222f1806 | 1347 | |
1da177e4 | 1348 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
222f1806 LC |
1349 | if (len < 0) { |
1350 | return len; | |
1351 | } | |
1da177e4 | 1352 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1353 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1354 | return -EFAULT; |
1355 | i += len; | |
1356 | ||
222f1806 | 1357 | for (*m = 0; *v && m < pkt_dev->dst_mac + 6; v++) { |
1da177e4 LT |
1358 | if (*v >= '0' && *v <= '9') { |
1359 | *m *= 16; | |
1360 | *m += *v - '0'; | |
1361 | } | |
1362 | if (*v >= 'A' && *v <= 'F') { | |
1363 | *m *= 16; | |
1364 | *m += *v - 'A' + 10; | |
1365 | } | |
1366 | if (*v >= 'a' && *v <= 'f') { | |
1367 | *m *= 16; | |
1368 | *m += *v - 'a' + 10; | |
1369 | } | |
1370 | if (*v == ':') { | |
1371 | m++; | |
1372 | *m = 0; | |
1373 | } | |
1374 | } | |
1375 | ||
1376 | /* Set up Dest MAC */ | |
f404e9a6 KK |
1377 | if (compare_ether_addr(old_dmac, pkt_dev->dst_mac)) |
1378 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); | |
222f1806 | 1379 | |
1da177e4 LT |
1380 | sprintf(pg_result, "OK: dstmac"); |
1381 | return count; | |
1382 | } | |
1383 | if (!strcmp(name, "src_mac")) { | |
1384 | char *v = valstr; | |
ce5d0b47 | 1385 | unsigned char old_smac[ETH_ALEN]; |
1da177e4 LT |
1386 | unsigned char *m = pkt_dev->src_mac; |
1387 | ||
ce5d0b47 AR |
1388 | memcpy(old_smac, pkt_dev->src_mac, ETH_ALEN); |
1389 | ||
1da177e4 | 1390 | len = strn_len(&user_buffer[i], sizeof(valstr) - 1); |
222f1806 LC |
1391 | if (len < 0) { |
1392 | return len; | |
1393 | } | |
1da177e4 | 1394 | memset(valstr, 0, sizeof(valstr)); |
222f1806 | 1395 | if (copy_from_user(valstr, &user_buffer[i], len)) |
1da177e4 LT |
1396 | return -EFAULT; |
1397 | i += len; | |
1398 | ||
222f1806 | 1399 | for (*m = 0; *v && m < pkt_dev->src_mac + 6; v++) { |
1da177e4 LT |
1400 | if (*v >= '0' && *v <= '9') { |
1401 | *m *= 16; | |
1402 | *m += *v - '0'; | |
1403 | } | |
1404 | if (*v >= 'A' && *v <= 'F') { | |
1405 | *m *= 16; | |
1406 | *m += *v - 'A' + 10; | |
1407 | } | |
1408 | if (*v >= 'a' && *v <= 'f') { | |
1409 | *m *= 16; | |
1410 | *m += *v - 'a' + 10; | |
1411 | } | |
1412 | if (*v == ':') { | |
1413 | m++; | |
1414 | *m = 0; | |
1415 | } | |
222f1806 | 1416 | } |
1da177e4 | 1417 | |
ce5d0b47 AR |
1418 | /* Set up Src MAC */ |
1419 | if (compare_ether_addr(old_smac, pkt_dev->src_mac)) | |
1420 | memcpy(&(pkt_dev->hh[6]), pkt_dev->src_mac, ETH_ALEN); | |
1421 | ||
222f1806 | 1422 | sprintf(pg_result, "OK: srcmac"); |
1da177e4 LT |
1423 | return count; |
1424 | } | |
1425 | ||
222f1806 LC |
1426 | if (!strcmp(name, "clear_counters")) { |
1427 | pktgen_clear_counters(pkt_dev); | |
1428 | sprintf(pg_result, "OK: Clearing counters.\n"); | |
1429 | return count; | |
1430 | } | |
1da177e4 LT |
1431 | |
1432 | if (!strcmp(name, "flows")) { | |
1433 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1434 | if (len < 0) { |
1435 | return len; | |
1436 | } | |
1da177e4 LT |
1437 | i += len; |
1438 | if (value > MAX_CFLOWS) | |
1439 | value = MAX_CFLOWS; | |
1440 | ||
1441 | pkt_dev->cflows = value; | |
1442 | sprintf(pg_result, "OK: flows=%u", pkt_dev->cflows); | |
1443 | return count; | |
1444 | } | |
1445 | ||
1446 | if (!strcmp(name, "flowlen")) { | |
1447 | len = num_arg(&user_buffer[i], 10, &value); | |
222f1806 LC |
1448 | if (len < 0) { |
1449 | return len; | |
1450 | } | |
1da177e4 LT |
1451 | i += len; |
1452 | pkt_dev->lflow = value; | |
1453 | sprintf(pg_result, "OK: flowlen=%u", pkt_dev->lflow); | |
1454 | return count; | |
1455 | } | |
222f1806 | 1456 | |
45b270f8 RO |
1457 | if (!strcmp(name, "queue_map_min")) { |
1458 | len = num_arg(&user_buffer[i], 5, &value); | |
1459 | if (len < 0) { | |
1460 | return len; | |
1461 | } | |
1462 | i += len; | |
1463 | pkt_dev->queue_map_min = value; | |
1464 | sprintf(pg_result, "OK: queue_map_min=%u", pkt_dev->queue_map_min); | |
1465 | return count; | |
1466 | } | |
1467 | ||
1468 | if (!strcmp(name, "queue_map_max")) { | |
1469 | len = num_arg(&user_buffer[i], 5, &value); | |
1470 | if (len < 0) { | |
1471 | return len; | |
1472 | } | |
1473 | i += len; | |
1474 | pkt_dev->queue_map_max = value; | |
1475 | sprintf(pg_result, "OK: queue_map_max=%u", pkt_dev->queue_map_max); | |
1476 | return count; | |
1477 | } | |
1478 | ||
ca6549af | 1479 | if (!strcmp(name, "mpls")) { |
cfcabdcc SH |
1480 | unsigned n, cnt; |
1481 | ||
ca6549af | 1482 | len = get_labels(&user_buffer[i], pkt_dev); |
cfcabdcc SH |
1483 | if (len < 0) |
1484 | return len; | |
ca6549af | 1485 | i += len; |
cfcabdcc | 1486 | cnt = sprintf(pg_result, "OK: mpls="); |
e71a4783 | 1487 | for (n = 0; n < pkt_dev->nr_labels; n++) |
cfcabdcc SH |
1488 | cnt += sprintf(pg_result + cnt, |
1489 | "%08x%s", ntohl(pkt_dev->labels[n]), | |
1490 | n == pkt_dev->nr_labels-1 ? "" : ","); | |
34954ddc FF |
1491 | |
1492 | if (pkt_dev->nr_labels && pkt_dev->vlan_id != 0xffff) { | |
1493 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1494 | pkt_dev->svlan_id = 0xffff; | |
1495 | ||
1496 | if (debug) | |
25a8b254 | 1497 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN auto turned off\n"); |
34954ddc FF |
1498 | } |
1499 | return count; | |
1500 | } | |
1501 | ||
1502 | if (!strcmp(name, "vlan_id")) { | |
1503 | len = num_arg(&user_buffer[i], 4, &value); | |
1504 | if (len < 0) { | |
1505 | return len; | |
1506 | } | |
1507 | i += len; | |
1508 | if (value <= 4095) { | |
1509 | pkt_dev->vlan_id = value; /* turn on VLAN */ | |
1510 | ||
1511 | if (debug) | |
25a8b254 | 1512 | printk(KERN_DEBUG "pktgen: VLAN turned on\n"); |
34954ddc FF |
1513 | |
1514 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1515 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1516 | |
1517 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1518 | sprintf(pg_result, "OK: vlan_id=%u", pkt_dev->vlan_id); | |
1519 | } else { | |
1520 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1521 | pkt_dev->svlan_id = 0xffff; | |
1522 | ||
1523 | if (debug) | |
25a8b254 | 1524 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1525 | } |
1526 | return count; | |
1527 | } | |
1528 | ||
1529 | if (!strcmp(name, "vlan_p")) { | |
1530 | len = num_arg(&user_buffer[i], 1, &value); | |
1531 | if (len < 0) { | |
1532 | return len; | |
1533 | } | |
1534 | i += len; | |
1535 | if ((value <= 7) && (pkt_dev->vlan_id != 0xffff)) { | |
1536 | pkt_dev->vlan_p = value; | |
1537 | sprintf(pg_result, "OK: vlan_p=%u", pkt_dev->vlan_p); | |
1538 | } else { | |
1539 | sprintf(pg_result, "ERROR: vlan_p must be 0-7"); | |
1540 | } | |
1541 | return count; | |
1542 | } | |
1543 | ||
1544 | if (!strcmp(name, "vlan_cfi")) { | |
1545 | len = num_arg(&user_buffer[i], 1, &value); | |
1546 | if (len < 0) { | |
1547 | return len; | |
1548 | } | |
1549 | i += len; | |
1550 | if ((value <= 1) && (pkt_dev->vlan_id != 0xffff)) { | |
1551 | pkt_dev->vlan_cfi = value; | |
1552 | sprintf(pg_result, "OK: vlan_cfi=%u", pkt_dev->vlan_cfi); | |
1553 | } else { | |
1554 | sprintf(pg_result, "ERROR: vlan_cfi must be 0-1"); | |
1555 | } | |
1556 | return count; | |
1557 | } | |
1558 | ||
1559 | if (!strcmp(name, "svlan_id")) { | |
1560 | len = num_arg(&user_buffer[i], 4, &value); | |
1561 | if (len < 0) { | |
1562 | return len; | |
1563 | } | |
1564 | i += len; | |
1565 | if ((value <= 4095) && ((pkt_dev->vlan_id != 0xffff))) { | |
1566 | pkt_dev->svlan_id = value; /* turn on SVLAN */ | |
1567 | ||
1568 | if (debug) | |
25a8b254 | 1569 | printk(KERN_DEBUG "pktgen: SVLAN turned on\n"); |
34954ddc FF |
1570 | |
1571 | if (debug && pkt_dev->nr_labels) | |
25a8b254 | 1572 | printk(KERN_DEBUG "pktgen: MPLS auto turned off\n"); |
34954ddc FF |
1573 | |
1574 | pkt_dev->nr_labels = 0; /* turn off MPLS */ | |
1575 | sprintf(pg_result, "OK: svlan_id=%u", pkt_dev->svlan_id); | |
1576 | } else { | |
1577 | pkt_dev->vlan_id = 0xffff; /* turn off VLAN/SVLAN */ | |
1578 | pkt_dev->svlan_id = 0xffff; | |
1579 | ||
1580 | if (debug) | |
25a8b254 | 1581 | printk(KERN_DEBUG "pktgen: VLAN/SVLAN turned off\n"); |
34954ddc FF |
1582 | } |
1583 | return count; | |
1584 | } | |
1585 | ||
1586 | if (!strcmp(name, "svlan_p")) { | |
1587 | len = num_arg(&user_buffer[i], 1, &value); | |
1588 | if (len < 0) { | |
1589 | return len; | |
1590 | } | |
1591 | i += len; | |
1592 | if ((value <= 7) && (pkt_dev->svlan_id != 0xffff)) { | |
1593 | pkt_dev->svlan_p = value; | |
1594 | sprintf(pg_result, "OK: svlan_p=%u", pkt_dev->svlan_p); | |
1595 | } else { | |
1596 | sprintf(pg_result, "ERROR: svlan_p must be 0-7"); | |
1597 | } | |
1598 | return count; | |
1599 | } | |
1600 | ||
1601 | if (!strcmp(name, "svlan_cfi")) { | |
1602 | len = num_arg(&user_buffer[i], 1, &value); | |
1603 | if (len < 0) { | |
1604 | return len; | |
1605 | } | |
1606 | i += len; | |
1607 | if ((value <= 1) && (pkt_dev->svlan_id != 0xffff)) { | |
1608 | pkt_dev->svlan_cfi = value; | |
1609 | sprintf(pg_result, "OK: svlan_cfi=%u", pkt_dev->svlan_cfi); | |
1610 | } else { | |
1611 | sprintf(pg_result, "ERROR: svlan_cfi must be 0-1"); | |
1612 | } | |
ca6549af SW |
1613 | return count; |
1614 | } | |
1615 | ||
1ca7768c FF |
1616 | if (!strcmp(name, "tos")) { |
1617 | __u32 tmp_value = 0; | |
1618 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
1619 | if (len < 0) { | |
1620 | return len; | |
1621 | } | |
1622 | i += len; | |
1623 | if (len == 2) { | |
1624 | pkt_dev->tos = tmp_value; | |
1625 | sprintf(pg_result, "OK: tos=0x%02x", pkt_dev->tos); | |
1626 | } else { | |
1627 | sprintf(pg_result, "ERROR: tos must be 00-ff"); | |
1628 | } | |
1629 | return count; | |
1630 | } | |
1631 | ||
1632 | if (!strcmp(name, "traffic_class")) { | |
1633 | __u32 tmp_value = 0; | |
1634 | len = hex32_arg(&user_buffer[i], 2, &tmp_value); | |
1635 | if (len < 0) { | |
1636 | return len; | |
1637 | } | |
1638 | i += len; | |
1639 | if (len == 2) { | |
1640 | pkt_dev->traffic_class = tmp_value; | |
1641 | sprintf(pg_result, "OK: traffic_class=0x%02x", pkt_dev->traffic_class); | |
1642 | } else { | |
1643 | sprintf(pg_result, "ERROR: traffic_class must be 00-ff"); | |
1644 | } | |
1645 | return count; | |
1646 | } | |
1647 | ||
1da177e4 LT |
1648 | sprintf(pkt_dev->result, "No such parameter \"%s\"", name); |
1649 | return -EINVAL; | |
1650 | } | |
1651 | ||
d50a6b56 | 1652 | static int pktgen_if_open(struct inode *inode, struct file *file) |
1da177e4 | 1653 | { |
d50a6b56 SH |
1654 | return single_open(file, pktgen_if_show, PDE(inode)->data); |
1655 | } | |
1da177e4 | 1656 | |
9a32144e | 1657 | static const struct file_operations pktgen_if_fops = { |
222f1806 LC |
1658 | .owner = THIS_MODULE, |
1659 | .open = pktgen_if_open, | |
1660 | .read = seq_read, | |
1661 | .llseek = seq_lseek, | |
1662 | .write = pktgen_if_write, | |
1663 | .release = single_release, | |
d50a6b56 | 1664 | }; |
1da177e4 | 1665 | |
d50a6b56 SH |
1666 | static int pktgen_thread_show(struct seq_file *seq, void *v) |
1667 | { | |
222f1806 | 1668 | struct pktgen_thread *t = seq->private; |
c26a8016 | 1669 | struct pktgen_dev *pkt_dev; |
d50a6b56 SH |
1670 | |
1671 | BUG_ON(!t); | |
1da177e4 | 1672 | |
222f1806 | 1673 | seq_printf(seq, "Running: "); |
1da177e4 | 1674 | |
222f1806 | 1675 | if_lock(t); |
c26a8016 | 1676 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1677 | if (pkt_dev->running) |
39df232f | 1678 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 | 1679 | |
222f1806 LC |
1680 | seq_printf(seq, "\nStopped: "); |
1681 | ||
c26a8016 | 1682 | list_for_each_entry(pkt_dev, &t->if_list, list) |
222f1806 | 1683 | if (!pkt_dev->running) |
39df232f | 1684 | seq_printf(seq, "%s ", pkt_dev->odev->name); |
1da177e4 LT |
1685 | |
1686 | if (t->result[0]) | |
d50a6b56 | 1687 | seq_printf(seq, "\nResult: %s\n", t->result); |
1da177e4 | 1688 | else |
d50a6b56 | 1689 | seq_printf(seq, "\nResult: NA\n"); |
1da177e4 | 1690 | |
222f1806 | 1691 | if_unlock(t); |
1da177e4 | 1692 | |
d50a6b56 | 1693 | return 0; |
1da177e4 LT |
1694 | } |
1695 | ||
d50a6b56 | 1696 | static ssize_t pktgen_thread_write(struct file *file, |
222f1806 LC |
1697 | const char __user * user_buffer, |
1698 | size_t count, loff_t * offset) | |
1da177e4 | 1699 | { |
222f1806 LC |
1700 | struct seq_file *seq = (struct seq_file *)file->private_data; |
1701 | struct pktgen_thread *t = seq->private; | |
1da177e4 LT |
1702 | int i = 0, max, len, ret; |
1703 | char name[40]; | |
222f1806 | 1704 | char *pg_result; |
d50a6b56 | 1705 | |
1da177e4 | 1706 | if (count < 1) { |
222f1806 | 1707 | // sprintf(pg_result, "Wrong command format"); |
1da177e4 LT |
1708 | return -EINVAL; |
1709 | } | |
d50a6b56 | 1710 | |
1da177e4 | 1711 | max = count - i; |
222f1806 LC |
1712 | len = count_trail_chars(&user_buffer[i], max); |
1713 | if (len < 0) | |
d50a6b56 SH |
1714 | return len; |
1715 | ||
1da177e4 | 1716 | i += len; |
d50a6b56 | 1717 | |
1da177e4 LT |
1718 | /* Read variable name */ |
1719 | ||
1720 | len = strn_len(&user_buffer[i], sizeof(name) - 1); | |
222f1806 | 1721 | if (len < 0) |
d50a6b56 | 1722 | return len; |
222f1806 | 1723 | |
1da177e4 LT |
1724 | memset(name, 0, sizeof(name)); |
1725 | if (copy_from_user(name, &user_buffer[i], len)) | |
1726 | return -EFAULT; | |
1727 | i += len; | |
d50a6b56 | 1728 | |
222f1806 | 1729 | max = count - i; |
1da177e4 | 1730 | len = count_trail_chars(&user_buffer[i], max); |
222f1806 | 1731 | if (len < 0) |
d50a6b56 SH |
1732 | return len; |
1733 | ||
1da177e4 LT |
1734 | i += len; |
1735 | ||
d50a6b56 | 1736 | if (debug) |
25a8b254 DM |
1737 | printk(KERN_DEBUG "pktgen: t=%s, count=%lu\n", |
1738 | name, (unsigned long)count); | |
1da177e4 | 1739 | |
222f1806 | 1740 | if (!t) { |
25a8b254 | 1741 | printk(KERN_ERR "pktgen: ERROR: No thread\n"); |
1da177e4 LT |
1742 | ret = -EINVAL; |
1743 | goto out; | |
1744 | } | |
1745 | ||
1746 | pg_result = &(t->result[0]); | |
1747 | ||
222f1806 LC |
1748 | if (!strcmp(name, "add_device")) { |
1749 | char f[32]; | |
1750 | memset(f, 0, 32); | |
1da177e4 | 1751 | len = strn_len(&user_buffer[i], sizeof(f) - 1); |
222f1806 LC |
1752 | if (len < 0) { |
1753 | ret = len; | |
1da177e4 LT |
1754 | goto out; |
1755 | } | |
222f1806 | 1756 | if (copy_from_user(f, &user_buffer[i], len)) |
1da177e4 LT |
1757 | return -EFAULT; |
1758 | i += len; | |
6146e6a4 | 1759 | mutex_lock(&pktgen_thread_lock); |
222f1806 | 1760 | pktgen_add_device(t, f); |
6146e6a4 | 1761 | mutex_unlock(&pktgen_thread_lock); |
222f1806 LC |
1762 | ret = count; |
1763 | sprintf(pg_result, "OK: add_device=%s", f); | |
1da177e4 LT |
1764 | goto out; |
1765 | } | |
1766 | ||
222f1806 | 1767 | if (!strcmp(name, "rem_device_all")) { |
6146e6a4 | 1768 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 | 1769 | t->control |= T_REMDEVALL; |
6146e6a4 | 1770 | mutex_unlock(&pktgen_thread_lock); |
222f1806 | 1771 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
1da177e4 | 1772 | ret = count; |
222f1806 | 1773 | sprintf(pg_result, "OK: rem_device_all"); |
1da177e4 LT |
1774 | goto out; |
1775 | } | |
1776 | ||
222f1806 | 1777 | if (!strcmp(name, "max_before_softirq")) { |
b163911f | 1778 | sprintf(pg_result, "OK: Note! max_before_softirq is obsoleted -- Do not use"); |
222f1806 | 1779 | ret = count; |
1da177e4 LT |
1780 | goto out; |
1781 | } | |
1782 | ||
1783 | ret = -EINVAL; | |
222f1806 | 1784 | out: |
1da177e4 LT |
1785 | return ret; |
1786 | } | |
1787 | ||
d50a6b56 | 1788 | static int pktgen_thread_open(struct inode *inode, struct file *file) |
1da177e4 | 1789 | { |
d50a6b56 | 1790 | return single_open(file, pktgen_thread_show, PDE(inode)->data); |
1da177e4 LT |
1791 | } |
1792 | ||
9a32144e | 1793 | static const struct file_operations pktgen_thread_fops = { |
222f1806 LC |
1794 | .owner = THIS_MODULE, |
1795 | .open = pktgen_thread_open, | |
1796 | .read = seq_read, | |
1797 | .llseek = seq_lseek, | |
1798 | .write = pktgen_thread_write, | |
1799 | .release = single_release, | |
d50a6b56 | 1800 | }; |
1da177e4 LT |
1801 | |
1802 | /* Think find or remove for NN */ | |
222f1806 | 1803 | static struct pktgen_dev *__pktgen_NN_threads(const char *ifname, int remove) |
1da177e4 LT |
1804 | { |
1805 | struct pktgen_thread *t; | |
1806 | struct pktgen_dev *pkt_dev = NULL; | |
1807 | ||
cdcdbe0b | 1808 | list_for_each_entry(t, &pktgen_threads, th_list) { |
1da177e4 LT |
1809 | pkt_dev = pktgen_find_dev(t, ifname); |
1810 | if (pkt_dev) { | |
222f1806 LC |
1811 | if (remove) { |
1812 | if_lock(t); | |
1813 | pkt_dev->removal_mark = 1; | |
1814 | t->control |= T_REMDEV; | |
1815 | if_unlock(t); | |
1816 | } | |
1da177e4 LT |
1817 | break; |
1818 | } | |
1da177e4 | 1819 | } |
222f1806 | 1820 | return pkt_dev; |
1da177e4 LT |
1821 | } |
1822 | ||
95ed63f7 AK |
1823 | /* |
1824 | * mark a device for removal | |
1825 | */ | |
39df232f | 1826 | static void pktgen_mark_device(const char *ifname) |
1da177e4 LT |
1827 | { |
1828 | struct pktgen_dev *pkt_dev = NULL; | |
95ed63f7 AK |
1829 | const int max_tries = 10, msec_per_try = 125; |
1830 | int i = 0; | |
95ed63f7 | 1831 | |
6146e6a4 | 1832 | mutex_lock(&pktgen_thread_lock); |
25c4e53a | 1833 | pr_debug("pktgen: pktgen_mark_device marking %s for removal\n", ifname); |
95ed63f7 | 1834 | |
222f1806 | 1835 | while (1) { |
95ed63f7 AK |
1836 | |
1837 | pkt_dev = __pktgen_NN_threads(ifname, REMOVE); | |
222f1806 LC |
1838 | if (pkt_dev == NULL) |
1839 | break; /* success */ | |
95ed63f7 | 1840 | |
6146e6a4 | 1841 | mutex_unlock(&pktgen_thread_lock); |
25c4e53a SH |
1842 | pr_debug("pktgen: pktgen_mark_device waiting for %s " |
1843 | "to disappear....\n", ifname); | |
95ed63f7 | 1844 | schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try)); |
6146e6a4 | 1845 | mutex_lock(&pktgen_thread_lock); |
95ed63f7 AK |
1846 | |
1847 | if (++i >= max_tries) { | |
25a8b254 DM |
1848 | printk(KERN_ERR "pktgen_mark_device: timed out after " |
1849 | "waiting %d msec for device %s to be removed\n", | |
222f1806 | 1850 | msec_per_try * i, ifname); |
95ed63f7 AK |
1851 | break; |
1852 | } | |
1853 | ||
1854 | } | |
1855 | ||
6146e6a4 | 1856 | mutex_unlock(&pktgen_thread_lock); |
39df232f | 1857 | } |
95ed63f7 | 1858 | |
39df232f SH |
1859 | static void pktgen_change_name(struct net_device *dev) |
1860 | { | |
1861 | struct pktgen_thread *t; | |
1862 | ||
1863 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1864 | struct pktgen_dev *pkt_dev; | |
1865 | ||
1866 | list_for_each_entry(pkt_dev, &t->if_list, list) { | |
1867 | if (pkt_dev->odev != dev) | |
1868 | continue; | |
1869 | ||
1870 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1871 | ||
1872 | pkt_dev->entry = create_proc_entry(dev->name, 0600, | |
1873 | pg_proc_dir); | |
1874 | if (!pkt_dev->entry) | |
1875 | printk(KERN_ERR "pktgen: can't move proc " | |
1876 | " entry for '%s'\n", dev->name); | |
1877 | break; | |
1878 | } | |
1879 | } | |
1da177e4 LT |
1880 | } |
1881 | ||
222f1806 LC |
1882 | static int pktgen_device_event(struct notifier_block *unused, |
1883 | unsigned long event, void *ptr) | |
1da177e4 | 1884 | { |
39df232f | 1885 | struct net_device *dev = ptr; |
1da177e4 | 1886 | |
721499e8 | 1887 | if (!net_eq(dev_net(dev), &init_net)) |
e9dc8653 EB |
1888 | return NOTIFY_DONE; |
1889 | ||
1da177e4 LT |
1890 | /* It is OK that we do not hold the group lock right now, |
1891 | * as we run under the RTNL lock. | |
1892 | */ | |
1893 | ||
1894 | switch (event) { | |
39df232f SH |
1895 | case NETDEV_CHANGENAME: |
1896 | pktgen_change_name(dev); | |
1da177e4 | 1897 | break; |
222f1806 | 1898 | |
1da177e4 | 1899 | case NETDEV_UNREGISTER: |
222f1806 | 1900 | pktgen_mark_device(dev->name); |
1da177e4 | 1901 | break; |
3ff50b79 | 1902 | } |
1da177e4 LT |
1903 | |
1904 | return NOTIFY_DONE; | |
1905 | } | |
1906 | ||
e6fce5b9 RO |
1907 | static struct net_device *pktgen_dev_get_by_name(struct pktgen_dev *pkt_dev, const char *ifname) |
1908 | { | |
1909 | char b[IFNAMSIZ+5]; | |
1910 | int i = 0; | |
1911 | ||
1912 | for(i=0; ifname[i] != '@'; i++) { | |
1913 | if(i == IFNAMSIZ) | |
1914 | break; | |
1915 | ||
1916 | b[i] = ifname[i]; | |
1917 | } | |
1918 | b[i] = 0; | |
1919 | ||
1920 | return dev_get_by_name(&init_net, b); | |
1921 | } | |
1922 | ||
1923 | ||
1da177e4 LT |
1924 | /* Associate pktgen_dev with a device. */ |
1925 | ||
39df232f | 1926 | static int pktgen_setup_dev(struct pktgen_dev *pkt_dev, const char *ifname) |
222f1806 | 1927 | { |
1da177e4 | 1928 | struct net_device *odev; |
39df232f | 1929 | int err; |
1da177e4 LT |
1930 | |
1931 | /* Clean old setups */ | |
1da177e4 LT |
1932 | if (pkt_dev->odev) { |
1933 | dev_put(pkt_dev->odev); | |
222f1806 LC |
1934 | pkt_dev->odev = NULL; |
1935 | } | |
1da177e4 | 1936 | |
e6fce5b9 | 1937 | odev = pktgen_dev_get_by_name(pkt_dev, ifname); |
1da177e4 | 1938 | if (!odev) { |
25a8b254 | 1939 | printk(KERN_ERR "pktgen: no such netdevice: \"%s\"\n", ifname); |
39df232f | 1940 | return -ENODEV; |
1da177e4 | 1941 | } |
39df232f | 1942 | |
1da177e4 | 1943 | if (odev->type != ARPHRD_ETHER) { |
25a8b254 | 1944 | printk(KERN_ERR "pktgen: not an ethernet device: \"%s\"\n", ifname); |
39df232f SH |
1945 | err = -EINVAL; |
1946 | } else if (!netif_running(odev)) { | |
25a8b254 | 1947 | printk(KERN_ERR "pktgen: device is down: \"%s\"\n", ifname); |
39df232f SH |
1948 | err = -ENETDOWN; |
1949 | } else { | |
1950 | pkt_dev->odev = odev; | |
1951 | return 0; | |
1da177e4 | 1952 | } |
1da177e4 | 1953 | |
1da177e4 | 1954 | dev_put(odev); |
39df232f | 1955 | return err; |
1da177e4 LT |
1956 | } |
1957 | ||
1958 | /* Read pkt_dev from the interface and set up internal pktgen_dev | |
1959 | * structure to have the right information to create/send packets | |
1960 | */ | |
1961 | static void pktgen_setup_inject(struct pktgen_dev *pkt_dev) | |
1962 | { | |
64c00d81 AG |
1963 | int ntxq; |
1964 | ||
222f1806 | 1965 | if (!pkt_dev->odev) { |
25a8b254 DM |
1966 | printk(KERN_ERR "pktgen: ERROR: pkt_dev->odev == NULL in " |
1967 | "setup_inject.\n"); | |
222f1806 LC |
1968 | sprintf(pkt_dev->result, |
1969 | "ERROR: pkt_dev->odev == NULL in setup_inject.\n"); | |
1970 | return; | |
1971 | } | |
1972 | ||
64c00d81 AG |
1973 | /* make sure that we don't pick a non-existing transmit queue */ |
1974 | ntxq = pkt_dev->odev->real_num_tx_queues; | |
88271660 | 1975 | if (ntxq > num_online_cpus() && (pkt_dev->flags & F_QUEUE_MAP_CPU)) { |
64c00d81 | 1976 | printk(KERN_WARNING "pktgen: WARNING: QUEUE_MAP_CPU " |
88271660 JB |
1977 | "disabled because CPU count (%d) exceeds number " |
1978 | "of tx queues (%d) on %s\n", num_online_cpus(), ntxq, | |
1979 | pkt_dev->odev->name); | |
64c00d81 AG |
1980 | pkt_dev->flags &= ~F_QUEUE_MAP_CPU; |
1981 | } | |
1982 | if (ntxq <= pkt_dev->queue_map_min) { | |
1983 | printk(KERN_WARNING "pktgen: WARNING: Requested " | |
88271660 JB |
1984 | "queue_map_min (zero-based) (%d) exceeds valid range " |
1985 | "[0 - %d] for (%d) queues on %s, resetting\n", | |
1986 | pkt_dev->queue_map_min, (ntxq ?: 1)- 1, ntxq, | |
1987 | pkt_dev->odev->name); | |
64c00d81 AG |
1988 | pkt_dev->queue_map_min = ntxq - 1; |
1989 | } | |
88271660 | 1990 | if (pkt_dev->queue_map_max >= ntxq) { |
64c00d81 | 1991 | printk(KERN_WARNING "pktgen: WARNING: Requested " |
88271660 JB |
1992 | "queue_map_max (zero-based) (%d) exceeds valid range " |
1993 | "[0 - %d] for (%d) queues on %s, resetting\n", | |
1994 | pkt_dev->queue_map_max, (ntxq ?: 1)- 1, ntxq, | |
1995 | pkt_dev->odev->name); | |
64c00d81 AG |
1996 | pkt_dev->queue_map_max = ntxq - 1; |
1997 | } | |
1998 | ||
222f1806 | 1999 | /* Default to the interface's mac if not explicitly set. */ |
1da177e4 | 2000 | |
f404e9a6 | 2001 | if (is_zero_ether_addr(pkt_dev->src_mac)) |
222f1806 | 2002 | memcpy(&(pkt_dev->hh[6]), pkt_dev->odev->dev_addr, ETH_ALEN); |
1da177e4 | 2003 | |
222f1806 | 2004 | /* Set up Dest MAC */ |
f404e9a6 | 2005 | memcpy(&(pkt_dev->hh[0]), pkt_dev->dst_mac, ETH_ALEN); |
1da177e4 | 2006 | |
222f1806 LC |
2007 | /* Set up pkt size */ |
2008 | pkt_dev->cur_pkt_size = pkt_dev->min_pkt_size; | |
2009 | ||
2010 | if (pkt_dev->flags & F_IPV6) { | |
1da177e4 | 2011 | /* |
4ec93edb | 2012 | * Skip this automatic address setting until locks or functions |
1da177e4 LT |
2013 | * gets exported |
2014 | */ | |
2015 | ||
2016 | #ifdef NOTNOW | |
222f1806 | 2017 | int i, set = 0, err = 1; |
1da177e4 LT |
2018 | struct inet6_dev *idev; |
2019 | ||
222f1806 LC |
2020 | for (i = 0; i < IN6_ADDR_HSIZE; i++) |
2021 | if (pkt_dev->cur_in6_saddr.s6_addr[i]) { | |
1da177e4 LT |
2022 | set = 1; |
2023 | break; | |
2024 | } | |
2025 | ||
222f1806 LC |
2026 | if (!set) { |
2027 | ||
1da177e4 LT |
2028 | /* |
2029 | * Use linklevel address if unconfigured. | |
2030 | * | |
2031 | * use ipv6_get_lladdr if/when it's get exported | |
2032 | */ | |
2033 | ||
8814c4b5 | 2034 | rcu_read_lock(); |
1da177e4 LT |
2035 | if ((idev = __in6_dev_get(pkt_dev->odev)) != NULL) { |
2036 | struct inet6_ifaddr *ifp; | |
2037 | ||
2038 | read_lock_bh(&idev->lock); | |
222f1806 LC |
2039 | for (ifp = idev->addr_list; ifp; |
2040 | ifp = ifp->if_next) { | |
2041 | if (ifp->scope == IFA_LINK | |
2042 | && !(ifp-> | |
2043 | flags & IFA_F_TENTATIVE)) { | |
2044 | ipv6_addr_copy(&pkt_dev-> | |
2045 | cur_in6_saddr, | |
2046 | &ifp->addr); | |
1da177e4 LT |
2047 | err = 0; |
2048 | break; | |
2049 | } | |
2050 | } | |
2051 | read_unlock_bh(&idev->lock); | |
2052 | } | |
8814c4b5 | 2053 | rcu_read_unlock(); |
222f1806 | 2054 | if (err) |
25a8b254 DM |
2055 | printk(KERN_ERR "pktgen: ERROR: IPv6 link " |
2056 | "address not availble.\n"); | |
1da177e4 LT |
2057 | } |
2058 | #endif | |
222f1806 | 2059 | } else { |
1da177e4 LT |
2060 | pkt_dev->saddr_min = 0; |
2061 | pkt_dev->saddr_max = 0; | |
2062 | if (strlen(pkt_dev->src_min) == 0) { | |
222f1806 LC |
2063 | |
2064 | struct in_device *in_dev; | |
1da177e4 LT |
2065 | |
2066 | rcu_read_lock(); | |
e5ed6399 | 2067 | in_dev = __in_dev_get_rcu(pkt_dev->odev); |
1da177e4 LT |
2068 | if (in_dev) { |
2069 | if (in_dev->ifa_list) { | |
222f1806 LC |
2070 | pkt_dev->saddr_min = |
2071 | in_dev->ifa_list->ifa_address; | |
1da177e4 LT |
2072 | pkt_dev->saddr_max = pkt_dev->saddr_min; |
2073 | } | |
1da177e4 LT |
2074 | } |
2075 | rcu_read_unlock(); | |
222f1806 | 2076 | } else { |
1da177e4 LT |
2077 | pkt_dev->saddr_min = in_aton(pkt_dev->src_min); |
2078 | pkt_dev->saddr_max = in_aton(pkt_dev->src_max); | |
2079 | } | |
2080 | ||
2081 | pkt_dev->daddr_min = in_aton(pkt_dev->dst_min); | |
2082 | pkt_dev->daddr_max = in_aton(pkt_dev->dst_max); | |
2083 | } | |
222f1806 LC |
2084 | /* Initialize current values. */ |
2085 | pkt_dev->cur_dst_mac_offset = 0; | |
2086 | pkt_dev->cur_src_mac_offset = 0; | |
2087 | pkt_dev->cur_saddr = pkt_dev->saddr_min; | |
2088 | pkt_dev->cur_daddr = pkt_dev->daddr_min; | |
2089 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; | |
2090 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
1da177e4 LT |
2091 | pkt_dev->nflows = 0; |
2092 | } | |
2093 | ||
2094 | static void spin(struct pktgen_dev *pkt_dev, __u64 spin_until_us) | |
2095 | { | |
2096 | __u64 start; | |
2097 | __u64 now; | |
2098 | ||
2099 | start = now = getCurUs(); | |
1da177e4 | 2100 | while (now < spin_until_us) { |
b4099fab | 2101 | /* TODO: optimize sleeping behavior */ |
222f1806 | 2102 | if (spin_until_us - now > jiffies_to_usecs(1) + 1) |
121caf57 NA |
2103 | schedule_timeout_interruptible(1); |
2104 | else if (spin_until_us - now > 100) { | |
1da177e4 LT |
2105 | if (!pkt_dev->running) |
2106 | return; | |
2107 | if (need_resched()) | |
2108 | schedule(); | |
2109 | } | |
2110 | ||
2111 | now = getCurUs(); | |
2112 | } | |
2113 | ||
2114 | pkt_dev->idle_acc += now - start; | |
2115 | } | |
2116 | ||
16dab72f JHS |
2117 | static inline void set_pkt_overhead(struct pktgen_dev *pkt_dev) |
2118 | { | |
a553e4a6 | 2119 | pkt_dev->pkt_overhead = 0; |
16dab72f JHS |
2120 | pkt_dev->pkt_overhead += pkt_dev->nr_labels*sizeof(u32); |
2121 | pkt_dev->pkt_overhead += VLAN_TAG_SIZE(pkt_dev); | |
2122 | pkt_dev->pkt_overhead += SVLAN_TAG_SIZE(pkt_dev); | |
2123 | } | |
2124 | ||
007a531b JHS |
2125 | static inline int f_seen(struct pktgen_dev *pkt_dev, int flow) |
2126 | { | |
2127 | ||
2128 | if (pkt_dev->flows[flow].flags & F_INIT) | |
2129 | return 1; | |
2130 | else | |
2131 | return 0; | |
2132 | } | |
2133 | ||
2134 | static inline int f_pick(struct pktgen_dev *pkt_dev) | |
2135 | { | |
2136 | int flow = pkt_dev->curfl; | |
2137 | ||
2138 | if (pkt_dev->flags & F_FLOW_SEQ) { | |
2139 | if (pkt_dev->flows[flow].count >= pkt_dev->lflow) { | |
2140 | /* reset time */ | |
2141 | pkt_dev->flows[flow].count = 0; | |
1211a645 | 2142 | pkt_dev->flows[flow].flags = 0; |
007a531b JHS |
2143 | pkt_dev->curfl += 1; |
2144 | if (pkt_dev->curfl >= pkt_dev->cflows) | |
2145 | pkt_dev->curfl = 0; /*reset */ | |
2146 | } | |
2147 | } else { | |
2148 | flow = random32() % pkt_dev->cflows; | |
1211a645 | 2149 | pkt_dev->curfl = flow; |
007a531b | 2150 | |
1211a645 | 2151 | if (pkt_dev->flows[flow].count > pkt_dev->lflow) { |
007a531b | 2152 | pkt_dev->flows[flow].count = 0; |
1211a645 RO |
2153 | pkt_dev->flows[flow].flags = 0; |
2154 | } | |
007a531b JHS |
2155 | } |
2156 | ||
2157 | return pkt_dev->curfl; | |
2158 | } | |
2159 | ||
a553e4a6 JHS |
2160 | |
2161 | #ifdef CONFIG_XFRM | |
2162 | /* If there was already an IPSEC SA, we keep it as is, else | |
2163 | * we go look for it ... | |
2164 | */ | |
fea1ab0f | 2165 | static void get_ipsec_sa(struct pktgen_dev *pkt_dev, int flow) |
a553e4a6 JHS |
2166 | { |
2167 | struct xfrm_state *x = pkt_dev->flows[flow].x; | |
2168 | if (!x) { | |
2169 | /*slow path: we dont already have xfrm_state*/ | |
2170 | x = xfrm_stateonly_find((xfrm_address_t *)&pkt_dev->cur_daddr, | |
2171 | (xfrm_address_t *)&pkt_dev->cur_saddr, | |
2172 | AF_INET, | |
2173 | pkt_dev->ipsmode, | |
2174 | pkt_dev->ipsproto, 0); | |
2175 | if (x) { | |
2176 | pkt_dev->flows[flow].x = x; | |
2177 | set_pkt_overhead(pkt_dev); | |
2178 | pkt_dev->pkt_overhead+=x->props.header_len; | |
2179 | } | |
2180 | ||
2181 | } | |
2182 | } | |
2183 | #endif | |
fd2ea0a7 DM |
2184 | static void set_cur_queue_map(struct pktgen_dev *pkt_dev) |
2185 | { | |
e6fce5b9 RO |
2186 | |
2187 | if (pkt_dev->flags & F_QUEUE_MAP_CPU) | |
2188 | pkt_dev->cur_queue_map = smp_processor_id(); | |
2189 | ||
2190 | else if (pkt_dev->queue_map_min < pkt_dev->queue_map_max) { | |
fd2ea0a7 DM |
2191 | __u16 t; |
2192 | if (pkt_dev->flags & F_QUEUE_MAP_RND) { | |
2193 | t = random32() % | |
2194 | (pkt_dev->queue_map_max - | |
2195 | pkt_dev->queue_map_min + 1) | |
2196 | + pkt_dev->queue_map_min; | |
2197 | } else { | |
2198 | t = pkt_dev->cur_queue_map + 1; | |
2199 | if (t > pkt_dev->queue_map_max) | |
2200 | t = pkt_dev->queue_map_min; | |
2201 | } | |
2202 | pkt_dev->cur_queue_map = t; | |
2203 | } | |
2204 | } | |
2205 | ||
1da177e4 LT |
2206 | /* Increment/randomize headers according to flags and current values |
2207 | * for IP src/dest, UDP src/dst port, MAC-Addr src/dst | |
2208 | */ | |
222f1806 LC |
2209 | static void mod_cur_headers(struct pktgen_dev *pkt_dev) |
2210 | { | |
2211 | __u32 imn; | |
2212 | __u32 imx; | |
2213 | int flow = 0; | |
1da177e4 | 2214 | |
007a531b JHS |
2215 | if (pkt_dev->cflows) |
2216 | flow = f_pick(pkt_dev); | |
1da177e4 LT |
2217 | |
2218 | /* Deal with source MAC */ | |
222f1806 LC |
2219 | if (pkt_dev->src_mac_count > 1) { |
2220 | __u32 mc; | |
2221 | __u32 tmp; | |
2222 | ||
2223 | if (pkt_dev->flags & F_MACSRC_RND) | |
5fa6fc76 | 2224 | mc = random32() % pkt_dev->src_mac_count; |
222f1806 LC |
2225 | else { |
2226 | mc = pkt_dev->cur_src_mac_offset++; | |
ff2a79a5 | 2227 | if (pkt_dev->cur_src_mac_offset >= |
222f1806 LC |
2228 | pkt_dev->src_mac_count) |
2229 | pkt_dev->cur_src_mac_offset = 0; | |
2230 | } | |
2231 | ||
2232 | tmp = pkt_dev->src_mac[5] + (mc & 0xFF); | |
2233 | pkt_dev->hh[11] = tmp; | |
2234 | tmp = (pkt_dev->src_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2235 | pkt_dev->hh[10] = tmp; | |
2236 | tmp = (pkt_dev->src_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2237 | pkt_dev->hh[9] = tmp; | |
2238 | tmp = (pkt_dev->src_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2239 | pkt_dev->hh[8] = tmp; | |
2240 | tmp = (pkt_dev->src_mac[1] + (tmp >> 8)); | |
2241 | pkt_dev->hh[7] = tmp; | |
2242 | } | |
2243 | ||
2244 | /* Deal with Destination MAC */ | |
2245 | if (pkt_dev->dst_mac_count > 1) { | |
2246 | __u32 mc; | |
2247 | __u32 tmp; | |
2248 | ||
2249 | if (pkt_dev->flags & F_MACDST_RND) | |
5fa6fc76 | 2250 | mc = random32() % pkt_dev->dst_mac_count; |
222f1806 LC |
2251 | |
2252 | else { | |
2253 | mc = pkt_dev->cur_dst_mac_offset++; | |
ff2a79a5 | 2254 | if (pkt_dev->cur_dst_mac_offset >= |
222f1806 LC |
2255 | pkt_dev->dst_mac_count) { |
2256 | pkt_dev->cur_dst_mac_offset = 0; | |
2257 | } | |
2258 | } | |
2259 | ||
2260 | tmp = pkt_dev->dst_mac[5] + (mc & 0xFF); | |
2261 | pkt_dev->hh[5] = tmp; | |
2262 | tmp = (pkt_dev->dst_mac[4] + ((mc >> 8) & 0xFF) + (tmp >> 8)); | |
2263 | pkt_dev->hh[4] = tmp; | |
2264 | tmp = (pkt_dev->dst_mac[3] + ((mc >> 16) & 0xFF) + (tmp >> 8)); | |
2265 | pkt_dev->hh[3] = tmp; | |
2266 | tmp = (pkt_dev->dst_mac[2] + ((mc >> 24) & 0xFF) + (tmp >> 8)); | |
2267 | pkt_dev->hh[2] = tmp; | |
2268 | tmp = (pkt_dev->dst_mac[1] + (tmp >> 8)); | |
2269 | pkt_dev->hh[1] = tmp; | |
2270 | } | |
2271 | ||
ca6549af SW |
2272 | if (pkt_dev->flags & F_MPLS_RND) { |
2273 | unsigned i; | |
e71a4783 | 2274 | for (i = 0; i < pkt_dev->nr_labels; i++) |
ca6549af SW |
2275 | if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM) |
2276 | pkt_dev->labels[i] = MPLS_STACK_BOTTOM | | |
5fa6fc76 | 2277 | ((__force __be32)random32() & |
ca6549af SW |
2278 | htonl(0x000fffff)); |
2279 | } | |
2280 | ||
34954ddc | 2281 | if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) { |
5fa6fc76 | 2282 | pkt_dev->vlan_id = random32() & (4096-1); |
34954ddc FF |
2283 | } |
2284 | ||
2285 | if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) { | |
5fa6fc76 | 2286 | pkt_dev->svlan_id = random32() & (4096 - 1); |
34954ddc FF |
2287 | } |
2288 | ||
222f1806 LC |
2289 | if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) { |
2290 | if (pkt_dev->flags & F_UDPSRC_RND) | |
5fa6fc76 SH |
2291 | pkt_dev->cur_udp_src = random32() % |
2292 | (pkt_dev->udp_src_max - pkt_dev->udp_src_min) | |
2293 | + pkt_dev->udp_src_min; | |
222f1806 LC |
2294 | |
2295 | else { | |
1da177e4 LT |
2296 | pkt_dev->cur_udp_src++; |
2297 | if (pkt_dev->cur_udp_src >= pkt_dev->udp_src_max) | |
2298 | pkt_dev->cur_udp_src = pkt_dev->udp_src_min; | |
222f1806 LC |
2299 | } |
2300 | } | |
2301 | ||
2302 | if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) { | |
2303 | if (pkt_dev->flags & F_UDPDST_RND) { | |
5fa6fc76 SH |
2304 | pkt_dev->cur_udp_dst = random32() % |
2305 | (pkt_dev->udp_dst_max - pkt_dev->udp_dst_min) | |
2306 | + pkt_dev->udp_dst_min; | |
222f1806 | 2307 | } else { |
1da177e4 | 2308 | pkt_dev->cur_udp_dst++; |
222f1806 | 2309 | if (pkt_dev->cur_udp_dst >= pkt_dev->udp_dst_max) |
1da177e4 | 2310 | pkt_dev->cur_udp_dst = pkt_dev->udp_dst_min; |
222f1806 LC |
2311 | } |
2312 | } | |
1da177e4 LT |
2313 | |
2314 | if (!(pkt_dev->flags & F_IPV6)) { | |
2315 | ||
222f1806 LC |
2316 | if ((imn = ntohl(pkt_dev->saddr_min)) < (imx = |
2317 | ntohl(pkt_dev-> | |
2318 | saddr_max))) { | |
1da177e4 | 2319 | __u32 t; |
222f1806 | 2320 | if (pkt_dev->flags & F_IPSRC_RND) |
5fa6fc76 | 2321 | t = random32() % (imx - imn) + imn; |
1da177e4 LT |
2322 | else { |
2323 | t = ntohl(pkt_dev->cur_saddr); | |
2324 | t++; | |
2325 | if (t > imx) { | |
2326 | t = imn; | |
2327 | } | |
2328 | } | |
2329 | pkt_dev->cur_saddr = htonl(t); | |
2330 | } | |
222f1806 | 2331 | |
007a531b | 2332 | if (pkt_dev->cflows && f_seen(pkt_dev, flow)) { |
1da177e4 LT |
2333 | pkt_dev->cur_daddr = pkt_dev->flows[flow].cur_daddr; |
2334 | } else { | |
252e3346 AV |
2335 | imn = ntohl(pkt_dev->daddr_min); |
2336 | imx = ntohl(pkt_dev->daddr_max); | |
2337 | if (imn < imx) { | |
1da177e4 | 2338 | __u32 t; |
252e3346 | 2339 | __be32 s; |
1da177e4 LT |
2340 | if (pkt_dev->flags & F_IPDST_RND) { |
2341 | ||
5fa6fc76 | 2342 | t = random32() % (imx - imn) + imn; |
252e3346 | 2343 | s = htonl(t); |
1da177e4 | 2344 | |
21cf2253 JP |
2345 | while (ipv4_is_loopback(s) || |
2346 | ipv4_is_multicast(s) || | |
1e637c74 | 2347 | ipv4_is_lbcast(s) || |
21cf2253 JP |
2348 | ipv4_is_zeronet(s) || |
2349 | ipv4_is_local_multicast(s)) { | |
5fa6fc76 | 2350 | t = random32() % (imx - imn) + imn; |
252e3346 | 2351 | s = htonl(t); |
1da177e4 | 2352 | } |
252e3346 AV |
2353 | pkt_dev->cur_daddr = s; |
2354 | } else { | |
1da177e4 LT |
2355 | t = ntohl(pkt_dev->cur_daddr); |
2356 | t++; | |
2357 | if (t > imx) { | |
2358 | t = imn; | |
2359 | } | |
2360 | pkt_dev->cur_daddr = htonl(t); | |
2361 | } | |
2362 | } | |
222f1806 | 2363 | if (pkt_dev->cflows) { |
007a531b | 2364 | pkt_dev->flows[flow].flags |= F_INIT; |
222f1806 LC |
2365 | pkt_dev->flows[flow].cur_daddr = |
2366 | pkt_dev->cur_daddr; | |
a553e4a6 JHS |
2367 | #ifdef CONFIG_XFRM |
2368 | if (pkt_dev->flags & F_IPSEC_ON) | |
2369 | get_ipsec_sa(pkt_dev, flow); | |
2370 | #endif | |
1da177e4 LT |
2371 | pkt_dev->nflows++; |
2372 | } | |
2373 | } | |
222f1806 LC |
2374 | } else { /* IPV6 * */ |
2375 | ||
2376 | if (pkt_dev->min_in6_daddr.s6_addr32[0] == 0 && | |
2377 | pkt_dev->min_in6_daddr.s6_addr32[1] == 0 && | |
2378 | pkt_dev->min_in6_daddr.s6_addr32[2] == 0 && | |
2379 | pkt_dev->min_in6_daddr.s6_addr32[3] == 0) ; | |
1da177e4 LT |
2380 | else { |
2381 | int i; | |
2382 | ||
2383 | /* Only random destinations yet */ | |
2384 | ||
222f1806 | 2385 | for (i = 0; i < 4; i++) { |
1da177e4 | 2386 | pkt_dev->cur_in6_daddr.s6_addr32[i] = |
5fa6fc76 | 2387 | (((__force __be32)random32() | |
222f1806 LC |
2388 | pkt_dev->min_in6_daddr.s6_addr32[i]) & |
2389 | pkt_dev->max_in6_daddr.s6_addr32[i]); | |
1da177e4 | 2390 | } |
222f1806 | 2391 | } |
1da177e4 LT |
2392 | } |
2393 | ||
222f1806 LC |
2394 | if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) { |
2395 | __u32 t; | |
2396 | if (pkt_dev->flags & F_TXSIZE_RND) { | |
5fa6fc76 SH |
2397 | t = random32() % |
2398 | (pkt_dev->max_pkt_size - pkt_dev->min_pkt_size) | |
2399 | + pkt_dev->min_pkt_size; | |
222f1806 | 2400 | } else { |
1da177e4 | 2401 | t = pkt_dev->cur_pkt_size + 1; |
222f1806 | 2402 | if (t > pkt_dev->max_pkt_size) |
1da177e4 | 2403 | t = pkt_dev->min_pkt_size; |
222f1806 LC |
2404 | } |
2405 | pkt_dev->cur_pkt_size = t; | |
2406 | } | |
1da177e4 | 2407 | |
fd2ea0a7 | 2408 | set_cur_queue_map(pkt_dev); |
45b270f8 | 2409 | |
1da177e4 LT |
2410 | pkt_dev->flows[flow].count++; |
2411 | } | |
2412 | ||
a553e4a6 JHS |
2413 | |
2414 | #ifdef CONFIG_XFRM | |
2415 | static int pktgen_output_ipsec(struct sk_buff *skb, struct pktgen_dev *pkt_dev) | |
2416 | { | |
2417 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2418 | int err = 0; | |
2419 | struct iphdr *iph; | |
2420 | ||
2421 | if (!x) | |
2422 | return 0; | |
2423 | /* XXX: we dont support tunnel mode for now until | |
2424 | * we resolve the dst issue */ | |
2425 | if (x->props.mode != XFRM_MODE_TRANSPORT) | |
2426 | return 0; | |
2427 | ||
2428 | spin_lock(&x->lock); | |
2429 | iph = ip_hdr(skb); | |
2430 | ||
13996378 | 2431 | err = x->outer_mode->output(x, skb); |
a553e4a6 JHS |
2432 | if (err) |
2433 | goto error; | |
2434 | err = x->type->output(x, skb); | |
2435 | if (err) | |
2436 | goto error; | |
2437 | ||
2438 | x->curlft.bytes +=skb->len; | |
2439 | x->curlft.packets++; | |
a553e4a6 JHS |
2440 | error: |
2441 | spin_unlock(&x->lock); | |
2442 | return err; | |
2443 | } | |
2444 | ||
2445 | static inline void free_SAs(struct pktgen_dev *pkt_dev) | |
2446 | { | |
2447 | if (pkt_dev->cflows) { | |
2448 | /* let go of the SAs if we have them */ | |
2449 | int i = 0; | |
2450 | for (; i < pkt_dev->nflows; i++){ | |
2451 | struct xfrm_state *x = pkt_dev->flows[i].x; | |
2452 | if (x) { | |
2453 | xfrm_state_put(x); | |
2454 | pkt_dev->flows[i].x = NULL; | |
2455 | } | |
2456 | } | |
2457 | } | |
2458 | } | |
2459 | ||
2460 | static inline int process_ipsec(struct pktgen_dev *pkt_dev, | |
2461 | struct sk_buff *skb, __be16 protocol) | |
2462 | { | |
2463 | if (pkt_dev->flags & F_IPSEC_ON) { | |
2464 | struct xfrm_state *x = pkt_dev->flows[pkt_dev->curfl].x; | |
2465 | int nhead = 0; | |
2466 | if (x) { | |
2467 | int ret; | |
2468 | __u8 *eth; | |
2469 | nhead = x->props.header_len - skb_headroom(skb); | |
2470 | if (nhead >0) { | |
2471 | ret = pskb_expand_head(skb, nhead, 0, GFP_ATOMIC); | |
2472 | if (ret < 0) { | |
25a8b254 DM |
2473 | printk(KERN_ERR "Error expanding " |
2474 | "ipsec packet %d\n",ret); | |
b4bb4ac8 | 2475 | goto err; |
a553e4a6 JHS |
2476 | } |
2477 | } | |
2478 | ||
2479 | /* ipsec is not expecting ll header */ | |
2480 | skb_pull(skb, ETH_HLEN); | |
2481 | ret = pktgen_output_ipsec(skb, pkt_dev); | |
2482 | if (ret) { | |
25a8b254 DM |
2483 | printk(KERN_ERR "Error creating ipsec " |
2484 | "packet %d\n",ret); | |
b4bb4ac8 | 2485 | goto err; |
a553e4a6 JHS |
2486 | } |
2487 | /* restore ll */ | |
2488 | eth = (__u8 *) skb_push(skb, ETH_HLEN); | |
2489 | memcpy(eth, pkt_dev->hh, 12); | |
2490 | *(u16 *) & eth[12] = protocol; | |
2491 | } | |
2492 | } | |
2493 | return 1; | |
b4bb4ac8 IJ |
2494 | err: |
2495 | kfree_skb(skb); | |
2496 | return 0; | |
a553e4a6 JHS |
2497 | } |
2498 | #endif | |
2499 | ||
ca6549af SW |
2500 | static void mpls_push(__be32 *mpls, struct pktgen_dev *pkt_dev) |
2501 | { | |
2502 | unsigned i; | |
e71a4783 | 2503 | for (i = 0; i < pkt_dev->nr_labels; i++) { |
ca6549af SW |
2504 | *mpls++ = pkt_dev->labels[i] & ~MPLS_STACK_BOTTOM; |
2505 | } | |
2506 | mpls--; | |
2507 | *mpls |= MPLS_STACK_BOTTOM; | |
2508 | } | |
2509 | ||
0f37c605 AV |
2510 | static inline __be16 build_tci(unsigned int id, unsigned int cfi, |
2511 | unsigned int prio) | |
2512 | { | |
2513 | return htons(id | (cfi << 12) | (prio << 13)); | |
2514 | } | |
2515 | ||
222f1806 LC |
2516 | static struct sk_buff *fill_packet_ipv4(struct net_device *odev, |
2517 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2518 | { |
2519 | struct sk_buff *skb = NULL; | |
2520 | __u8 *eth; | |
2521 | struct udphdr *udph; | |
2522 | int datalen, iplen; | |
2523 | struct iphdr *iph; | |
222f1806 | 2524 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2525 | __be16 protocol = htons(ETH_P_IP); |
ca6549af | 2526 | __be32 *mpls; |
34954ddc FF |
2527 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2528 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2529 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2530 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2531 | u16 queue_map; |
ca6549af SW |
2532 | |
2533 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2534 | protocol = htons(ETH_P_MPLS_UC); |
222f1806 | 2535 | |
34954ddc | 2536 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2537 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2538 | |
64053bee RO |
2539 | /* Update any of the values, used when we're incrementing various |
2540 | * fields. | |
2541 | */ | |
fd2ea0a7 | 2542 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2543 | mod_cur_headers(pkt_dev); |
2544 | ||
7ac5459e | 2545 | datalen = (odev->hard_header_len + 16) & ~0xf; |
ca6549af | 2546 | skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + datalen + |
16dab72f | 2547 | pkt_dev->pkt_overhead, GFP_ATOMIC); |
1da177e4 LT |
2548 | if (!skb) { |
2549 | sprintf(pkt_dev->result, "No memory"); | |
2550 | return NULL; | |
2551 | } | |
2552 | ||
7ac5459e | 2553 | skb_reserve(skb, datalen); |
1da177e4 LT |
2554 | |
2555 | /* Reserve for ethernet and IP header */ | |
2556 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2557 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2558 | if (pkt_dev->nr_labels) | |
2559 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2560 | |
2561 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2562 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2563 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2564 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2565 | pkt_dev->svlan_cfi, | |
2566 | pkt_dev->svlan_p); | |
34954ddc | 2567 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2568 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2569 | } |
2570 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2571 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2572 | pkt_dev->vlan_cfi, | |
2573 | pkt_dev->vlan_p); | |
34954ddc | 2574 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2575 | *vlan_encapsulated_proto = htons(ETH_P_IP); |
34954ddc FF |
2576 | } |
2577 | ||
27a884dc | 2578 | skb->network_header = skb->tail; |
b0e380b1 | 2579 | skb->transport_header = skb->network_header + sizeof(struct iphdr); |
ddc7b8e3 | 2580 | skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2581 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
2582 | iph = ip_hdr(skb); |
2583 | udph = udp_hdr(skb); | |
1da177e4 | 2584 | |
1da177e4 | 2585 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2586 | *(__be16 *) & eth[12] = protocol; |
1da177e4 | 2587 | |
ca6549af SW |
2588 | /* Eth + IPh + UDPh + mpls */ |
2589 | datalen = pkt_dev->cur_pkt_size - 14 - 20 - 8 - | |
16dab72f | 2590 | pkt_dev->pkt_overhead; |
222f1806 | 2591 | if (datalen < sizeof(struct pktgen_hdr)) |
1da177e4 | 2592 | datalen = sizeof(struct pktgen_hdr); |
222f1806 | 2593 | |
1da177e4 LT |
2594 | udph->source = htons(pkt_dev->cur_udp_src); |
2595 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2596 | udph->len = htons(datalen + 8); /* DATA + udphdr */ |
2597 | udph->check = 0; /* No checksum */ | |
1da177e4 LT |
2598 | |
2599 | iph->ihl = 5; | |
2600 | iph->version = 4; | |
2601 | iph->ttl = 32; | |
1ca7768c | 2602 | iph->tos = pkt_dev->tos; |
222f1806 | 2603 | iph->protocol = IPPROTO_UDP; /* UDP */ |
1da177e4 LT |
2604 | iph->saddr = pkt_dev->cur_saddr; |
2605 | iph->daddr = pkt_dev->cur_daddr; | |
2606 | iph->frag_off = 0; | |
2607 | iplen = 20 + 8 + datalen; | |
2608 | iph->tot_len = htons(iplen); | |
2609 | iph->check = 0; | |
222f1806 | 2610 | iph->check = ip_fast_csum((void *)iph, iph->ihl); |
ca6549af | 2611 | skb->protocol = protocol; |
b0e380b1 | 2612 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2613 | pkt_dev->pkt_overhead); |
1da177e4 LT |
2614 | skb->dev = odev; |
2615 | skb->pkt_type = PACKET_HOST; | |
2616 | ||
222f1806 LC |
2617 | if (pkt_dev->nfrags <= 0) |
2618 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2619 | else { |
2620 | int frags = pkt_dev->nfrags; | |
2621 | int i; | |
2622 | ||
222f1806 LC |
2623 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2624 | ||
1da177e4 LT |
2625 | if (frags > MAX_SKB_FRAGS) |
2626 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
2627 | if (datalen > frags * PAGE_SIZE) { |
2628 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
2629 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
2630 | } |
2631 | ||
2632 | i = 0; | |
2633 | while (datalen > 0) { | |
2634 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
2635 | skb_shinfo(skb)->frags[i].page = page; | |
2636 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2637 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2638 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2639 | datalen -= skb_shinfo(skb)->frags[i].size; |
2640 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2641 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2642 | i++; | |
2643 | skb_shinfo(skb)->nr_frags = i; | |
2644 | } | |
2645 | ||
2646 | while (i < frags) { | |
2647 | int rem; | |
2648 | ||
2649 | if (i == 0) | |
2650 | break; | |
2651 | ||
2652 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
2653 | if (rem == 0) | |
2654 | break; | |
2655 | ||
2656 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
2657 | ||
222f1806 LC |
2658 | skb_shinfo(skb)->frags[i] = |
2659 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 2660 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
2661 | skb_shinfo(skb)->frags[i].page = |
2662 | skb_shinfo(skb)->frags[i - 1].page; | |
2663 | skb_shinfo(skb)->frags[i].page_offset += | |
2664 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
2665 | skb_shinfo(skb)->frags[i].size = rem; |
2666 | i++; | |
2667 | skb_shinfo(skb)->nr_frags = i; | |
2668 | } | |
2669 | } | |
2670 | ||
222f1806 LC |
2671 | /* Stamp the time, and sequence number, convert them to network byte order */ |
2672 | ||
2673 | if (pgh) { | |
2674 | struct timeval timestamp; | |
2675 | ||
2676 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
2677 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
2678 | ||
2679 | do_gettimeofday(×tamp); | |
2680 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
2681 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
2682 | } | |
1da177e4 | 2683 | |
a553e4a6 JHS |
2684 | #ifdef CONFIG_XFRM |
2685 | if (!process_ipsec(pkt_dev, skb, protocol)) | |
2686 | return NULL; | |
2687 | #endif | |
2688 | ||
1da177e4 LT |
2689 | return skb; |
2690 | } | |
2691 | ||
2692 | /* | |
4ec93edb | 2693 | * scan_ip6, fmt_ip taken from dietlibc-0.21 |
1da177e4 LT |
2694 | * Author Felix von Leitner <felix-dietlibc@fefe.de> |
2695 | * | |
4ec93edb | 2696 | * Slightly modified for kernel. |
1da177e4 LT |
2697 | * Should be candidate for net/ipv4/utils.c |
2698 | * --ro | |
2699 | */ | |
2700 | ||
222f1806 | 2701 | static unsigned int scan_ip6(const char *s, char ip[16]) |
1da177e4 LT |
2702 | { |
2703 | unsigned int i; | |
222f1806 | 2704 | unsigned int len = 0; |
1da177e4 LT |
2705 | unsigned long u; |
2706 | char suffix[16]; | |
222f1806 LC |
2707 | unsigned int prefixlen = 0; |
2708 | unsigned int suffixlen = 0; | |
252e3346 | 2709 | __be32 tmp; |
cfcabdcc | 2710 | char *pos; |
1da177e4 | 2711 | |
222f1806 LC |
2712 | for (i = 0; i < 16; i++) |
2713 | ip[i] = 0; | |
1da177e4 LT |
2714 | |
2715 | for (;;) { | |
2716 | if (*s == ':') { | |
2717 | len++; | |
222f1806 LC |
2718 | if (s[1] == ':') { /* Found "::", skip to part 2 */ |
2719 | s += 2; | |
1da177e4 LT |
2720 | len++; |
2721 | break; | |
2722 | } | |
2723 | s++; | |
2724 | } | |
1da177e4 | 2725 | |
cfcabdcc SH |
2726 | u = simple_strtoul(s, &pos, 16); |
2727 | i = pos - s; | |
222f1806 LC |
2728 | if (!i) |
2729 | return 0; | |
2730 | if (prefixlen == 12 && s[i] == '.') { | |
1da177e4 LT |
2731 | |
2732 | /* the last 4 bytes may be written as IPv4 address */ | |
2733 | ||
2734 | tmp = in_aton(s); | |
222f1806 LC |
2735 | memcpy((struct in_addr *)(ip + 12), &tmp, sizeof(tmp)); |
2736 | return i + len; | |
1da177e4 LT |
2737 | } |
2738 | ip[prefixlen++] = (u >> 8); | |
2739 | ip[prefixlen++] = (u & 255); | |
222f1806 LC |
2740 | s += i; |
2741 | len += i; | |
2742 | if (prefixlen == 16) | |
1da177e4 LT |
2743 | return len; |
2744 | } | |
2745 | ||
2746 | /* part 2, after "::" */ | |
2747 | for (;;) { | |
2748 | if (*s == ':') { | |
222f1806 | 2749 | if (suffixlen == 0) |
1da177e4 LT |
2750 | break; |
2751 | s++; | |
2752 | len++; | |
222f1806 | 2753 | } else if (suffixlen != 0) |
1da177e4 | 2754 | break; |
cfcabdcc SH |
2755 | |
2756 | u = simple_strtol(s, &pos, 16); | |
2757 | i = pos - s; | |
1da177e4 | 2758 | if (!i) { |
222f1806 LC |
2759 | if (*s) |
2760 | len--; | |
1da177e4 LT |
2761 | break; |
2762 | } | |
222f1806 | 2763 | if (suffixlen + prefixlen <= 12 && s[i] == '.') { |
1da177e4 | 2764 | tmp = in_aton(s); |
222f1806 LC |
2765 | memcpy((struct in_addr *)(suffix + suffixlen), &tmp, |
2766 | sizeof(tmp)); | |
2767 | suffixlen += 4; | |
2768 | len += strlen(s); | |
1da177e4 LT |
2769 | break; |
2770 | } | |
2771 | suffix[suffixlen++] = (u >> 8); | |
2772 | suffix[suffixlen++] = (u & 255); | |
222f1806 LC |
2773 | s += i; |
2774 | len += i; | |
2775 | if (prefixlen + suffixlen == 16) | |
1da177e4 LT |
2776 | break; |
2777 | } | |
222f1806 LC |
2778 | for (i = 0; i < suffixlen; i++) |
2779 | ip[16 - suffixlen + i] = suffix[i]; | |
1da177e4 LT |
2780 | return len; |
2781 | } | |
2782 | ||
222f1806 LC |
2783 | static char tohex(char hexdigit) |
2784 | { | |
2785 | return hexdigit > 9 ? hexdigit + 'a' - 10 : hexdigit + '0'; | |
1da177e4 LT |
2786 | } |
2787 | ||
222f1806 LC |
2788 | static int fmt_xlong(char *s, unsigned int i) |
2789 | { | |
2790 | char *bak = s; | |
2791 | *s = tohex((i >> 12) & 0xf); | |
2792 | if (s != bak || *s != '0') | |
2793 | ++s; | |
2794 | *s = tohex((i >> 8) & 0xf); | |
2795 | if (s != bak || *s != '0') | |
2796 | ++s; | |
2797 | *s = tohex((i >> 4) & 0xf); | |
2798 | if (s != bak || *s != '0') | |
2799 | ++s; | |
2800 | *s = tohex(i & 0xf); | |
2801 | return s - bak + 1; | |
1da177e4 LT |
2802 | } |
2803 | ||
222f1806 LC |
2804 | static unsigned int fmt_ip6(char *s, const char ip[16]) |
2805 | { | |
1da177e4 LT |
2806 | unsigned int len; |
2807 | unsigned int i; | |
2808 | unsigned int temp; | |
2809 | unsigned int compressing; | |
2810 | int j; | |
2811 | ||
222f1806 LC |
2812 | len = 0; |
2813 | compressing = 0; | |
2814 | for (j = 0; j < 16; j += 2) { | |
1da177e4 LT |
2815 | |
2816 | #ifdef V4MAPPEDPREFIX | |
222f1806 LC |
2817 | if (j == 12 && !memcmp(ip, V4mappedprefix, 12)) { |
2818 | inet_ntoa_r(*(struct in_addr *)(ip + 12), s); | |
2819 | temp = strlen(s); | |
2820 | return len + temp; | |
1da177e4 LT |
2821 | } |
2822 | #endif | |
222f1806 LC |
2823 | temp = ((unsigned long)(unsigned char)ip[j] << 8) + |
2824 | (unsigned long)(unsigned char)ip[j + 1]; | |
1da177e4 LT |
2825 | if (temp == 0) { |
2826 | if (!compressing) { | |
222f1806 LC |
2827 | compressing = 1; |
2828 | if (j == 0) { | |
2829 | *s++ = ':'; | |
2830 | ++len; | |
1da177e4 LT |
2831 | } |
2832 | } | |
2833 | } else { | |
2834 | if (compressing) { | |
222f1806 LC |
2835 | compressing = 0; |
2836 | *s++ = ':'; | |
2837 | ++len; | |
1da177e4 | 2838 | } |
222f1806 LC |
2839 | i = fmt_xlong(s, temp); |
2840 | len += i; | |
2841 | s += i; | |
2842 | if (j < 14) { | |
1da177e4 LT |
2843 | *s++ = ':'; |
2844 | ++len; | |
2845 | } | |
2846 | } | |
2847 | } | |
2848 | if (compressing) { | |
222f1806 LC |
2849 | *s++ = ':'; |
2850 | ++len; | |
1da177e4 | 2851 | } |
222f1806 | 2852 | *s = 0; |
1da177e4 LT |
2853 | return len; |
2854 | } | |
2855 | ||
222f1806 LC |
2856 | static struct sk_buff *fill_packet_ipv6(struct net_device *odev, |
2857 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
2858 | { |
2859 | struct sk_buff *skb = NULL; | |
2860 | __u8 *eth; | |
2861 | struct udphdr *udph; | |
2862 | int datalen; | |
2863 | struct ipv6hdr *iph; | |
222f1806 | 2864 | struct pktgen_hdr *pgh = NULL; |
d5f1ce9a | 2865 | __be16 protocol = htons(ETH_P_IPV6); |
ca6549af | 2866 | __be32 *mpls; |
34954ddc FF |
2867 | __be16 *vlan_tci = NULL; /* Encapsulates priority and VLAN ID */ |
2868 | __be16 *vlan_encapsulated_proto = NULL; /* packet type ID field (or len) for VLAN tag */ | |
2869 | __be16 *svlan_tci = NULL; /* Encapsulates priority and SVLAN ID */ | |
2870 | __be16 *svlan_encapsulated_proto = NULL; /* packet type ID field (or len) for SVLAN tag */ | |
fd2ea0a7 | 2871 | u16 queue_map; |
ca6549af SW |
2872 | |
2873 | if (pkt_dev->nr_labels) | |
d5f1ce9a | 2874 | protocol = htons(ETH_P_MPLS_UC); |
64053bee | 2875 | |
34954ddc | 2876 | if (pkt_dev->vlan_id != 0xffff) |
d5f1ce9a | 2877 | protocol = htons(ETH_P_8021Q); |
34954ddc | 2878 | |
64053bee RO |
2879 | /* Update any of the values, used when we're incrementing various |
2880 | * fields. | |
2881 | */ | |
fd2ea0a7 | 2882 | queue_map = pkt_dev->cur_queue_map; |
64053bee RO |
2883 | mod_cur_headers(pkt_dev); |
2884 | ||
ca6549af | 2885 | skb = alloc_skb(pkt_dev->cur_pkt_size + 64 + 16 + |
16dab72f | 2886 | pkt_dev->pkt_overhead, GFP_ATOMIC); |
1da177e4 LT |
2887 | if (!skb) { |
2888 | sprintf(pkt_dev->result, "No memory"); | |
2889 | return NULL; | |
2890 | } | |
2891 | ||
2892 | skb_reserve(skb, 16); | |
2893 | ||
2894 | /* Reserve for ethernet and IP header */ | |
2895 | eth = (__u8 *) skb_push(skb, 14); | |
ca6549af SW |
2896 | mpls = (__be32 *)skb_put(skb, pkt_dev->nr_labels*sizeof(__u32)); |
2897 | if (pkt_dev->nr_labels) | |
2898 | mpls_push(mpls, pkt_dev); | |
34954ddc FF |
2899 | |
2900 | if (pkt_dev->vlan_id != 0xffff) { | |
e71a4783 | 2901 | if (pkt_dev->svlan_id != 0xffff) { |
34954ddc | 2902 | svlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); |
0f37c605 AV |
2903 | *svlan_tci = build_tci(pkt_dev->svlan_id, |
2904 | pkt_dev->svlan_cfi, | |
2905 | pkt_dev->svlan_p); | |
34954ddc | 2906 | svlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2907 | *svlan_encapsulated_proto = htons(ETH_P_8021Q); |
34954ddc FF |
2908 | } |
2909 | vlan_tci = (__be16 *)skb_put(skb, sizeof(__be16)); | |
0f37c605 AV |
2910 | *vlan_tci = build_tci(pkt_dev->vlan_id, |
2911 | pkt_dev->vlan_cfi, | |
2912 | pkt_dev->vlan_p); | |
34954ddc | 2913 | vlan_encapsulated_proto = (__be16 *)skb_put(skb, sizeof(__be16)); |
d5f1ce9a | 2914 | *vlan_encapsulated_proto = htons(ETH_P_IPV6); |
34954ddc FF |
2915 | } |
2916 | ||
27a884dc | 2917 | skb->network_header = skb->tail; |
b0e380b1 | 2918 | skb->transport_header = skb->network_header + sizeof(struct ipv6hdr); |
ddc7b8e3 | 2919 | skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr)); |
fd2ea0a7 | 2920 | skb_set_queue_mapping(skb, queue_map); |
ddc7b8e3 ACM |
2921 | iph = ipv6_hdr(skb); |
2922 | udph = udp_hdr(skb); | |
1da177e4 | 2923 | |
1da177e4 | 2924 | memcpy(eth, pkt_dev->hh, 12); |
252e3346 | 2925 | *(__be16 *) & eth[12] = protocol; |
64053bee | 2926 | |
ca6549af SW |
2927 | /* Eth + IPh + UDPh + mpls */ |
2928 | datalen = pkt_dev->cur_pkt_size - 14 - | |
2929 | sizeof(struct ipv6hdr) - sizeof(struct udphdr) - | |
16dab72f | 2930 | pkt_dev->pkt_overhead; |
1da177e4 | 2931 | |
222f1806 | 2932 | if (datalen < sizeof(struct pktgen_hdr)) { |
1da177e4 LT |
2933 | datalen = sizeof(struct pktgen_hdr); |
2934 | if (net_ratelimit()) | |
222f1806 LC |
2935 | printk(KERN_INFO "pktgen: increased datalen to %d\n", |
2936 | datalen); | |
1da177e4 LT |
2937 | } |
2938 | ||
2939 | udph->source = htons(pkt_dev->cur_udp_src); | |
2940 | udph->dest = htons(pkt_dev->cur_udp_dst); | |
222f1806 LC |
2941 | udph->len = htons(datalen + sizeof(struct udphdr)); |
2942 | udph->check = 0; /* No checksum */ | |
1da177e4 | 2943 | |
d5f1ce9a | 2944 | *(__be32 *) iph = htonl(0x60000000); /* Version + flow */ |
1da177e4 | 2945 | |
1ca7768c FF |
2946 | if (pkt_dev->traffic_class) { |
2947 | /* Version + traffic class + flow (0) */ | |
252e3346 | 2948 | *(__be32 *)iph |= htonl(0x60000000 | (pkt_dev->traffic_class << 20)); |
1ca7768c FF |
2949 | } |
2950 | ||
1da177e4 LT |
2951 | iph->hop_limit = 32; |
2952 | ||
2953 | iph->payload_len = htons(sizeof(struct udphdr) + datalen); | |
2954 | iph->nexthdr = IPPROTO_UDP; | |
2955 | ||
2956 | ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr); | |
2957 | ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr); | |
2958 | ||
b0e380b1 | 2959 | skb->mac_header = (skb->network_header - ETH_HLEN - |
16dab72f | 2960 | pkt_dev->pkt_overhead); |
ca6549af | 2961 | skb->protocol = protocol; |
1da177e4 LT |
2962 | skb->dev = odev; |
2963 | skb->pkt_type = PACKET_HOST; | |
2964 | ||
222f1806 LC |
2965 | if (pkt_dev->nfrags <= 0) |
2966 | pgh = (struct pktgen_hdr *)skb_put(skb, datalen); | |
1da177e4 LT |
2967 | else { |
2968 | int frags = pkt_dev->nfrags; | |
2969 | int i; | |
2970 | ||
222f1806 LC |
2971 | pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8); |
2972 | ||
1da177e4 LT |
2973 | if (frags > MAX_SKB_FRAGS) |
2974 | frags = MAX_SKB_FRAGS; | |
222f1806 LC |
2975 | if (datalen > frags * PAGE_SIZE) { |
2976 | skb_put(skb, datalen - frags * PAGE_SIZE); | |
2977 | datalen = frags * PAGE_SIZE; | |
1da177e4 LT |
2978 | } |
2979 | ||
2980 | i = 0; | |
2981 | while (datalen > 0) { | |
2982 | struct page *page = alloc_pages(GFP_KERNEL, 0); | |
2983 | skb_shinfo(skb)->frags[i].page = page; | |
2984 | skb_shinfo(skb)->frags[i].page_offset = 0; | |
2985 | skb_shinfo(skb)->frags[i].size = | |
222f1806 | 2986 | (datalen < PAGE_SIZE ? datalen : PAGE_SIZE); |
1da177e4 LT |
2987 | datalen -= skb_shinfo(skb)->frags[i].size; |
2988 | skb->len += skb_shinfo(skb)->frags[i].size; | |
2989 | skb->data_len += skb_shinfo(skb)->frags[i].size; | |
2990 | i++; | |
2991 | skb_shinfo(skb)->nr_frags = i; | |
2992 | } | |
2993 | ||
2994 | while (i < frags) { | |
2995 | int rem; | |
2996 | ||
2997 | if (i == 0) | |
2998 | break; | |
2999 | ||
3000 | rem = skb_shinfo(skb)->frags[i - 1].size / 2; | |
3001 | if (rem == 0) | |
3002 | break; | |
3003 | ||
3004 | skb_shinfo(skb)->frags[i - 1].size -= rem; | |
3005 | ||
222f1806 LC |
3006 | skb_shinfo(skb)->frags[i] = |
3007 | skb_shinfo(skb)->frags[i - 1]; | |
1da177e4 | 3008 | get_page(skb_shinfo(skb)->frags[i].page); |
222f1806 LC |
3009 | skb_shinfo(skb)->frags[i].page = |
3010 | skb_shinfo(skb)->frags[i - 1].page; | |
3011 | skb_shinfo(skb)->frags[i].page_offset += | |
3012 | skb_shinfo(skb)->frags[i - 1].size; | |
1da177e4 LT |
3013 | skb_shinfo(skb)->frags[i].size = rem; |
3014 | i++; | |
3015 | skb_shinfo(skb)->nr_frags = i; | |
3016 | } | |
3017 | } | |
3018 | ||
222f1806 | 3019 | /* Stamp the time, and sequence number, convert them to network byte order */ |
1da177e4 | 3020 | /* should we update cloned packets too ? */ |
222f1806 LC |
3021 | if (pgh) { |
3022 | struct timeval timestamp; | |
3023 | ||
3024 | pgh->pgh_magic = htonl(PKTGEN_MAGIC); | |
3025 | pgh->seq_num = htonl(pkt_dev->seq_num); | |
3026 | ||
3027 | do_gettimeofday(×tamp); | |
3028 | pgh->tv_sec = htonl(timestamp.tv_sec); | |
3029 | pgh->tv_usec = htonl(timestamp.tv_usec); | |
3030 | } | |
34954ddc | 3031 | /* pkt_dev->seq_num++; FF: you really mean this? */ |
222f1806 | 3032 | |
1da177e4 LT |
3033 | return skb; |
3034 | } | |
3035 | ||
222f1806 LC |
3036 | static inline struct sk_buff *fill_packet(struct net_device *odev, |
3037 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3038 | { |
222f1806 | 3039 | if (pkt_dev->flags & F_IPV6) |
1da177e4 LT |
3040 | return fill_packet_ipv6(odev, pkt_dev); |
3041 | else | |
3042 | return fill_packet_ipv4(odev, pkt_dev); | |
3043 | } | |
3044 | ||
222f1806 | 3045 | static void pktgen_clear_counters(struct pktgen_dev *pkt_dev) |
1da177e4 | 3046 | { |
222f1806 LC |
3047 | pkt_dev->seq_num = 1; |
3048 | pkt_dev->idle_acc = 0; | |
1da177e4 | 3049 | pkt_dev->sofar = 0; |
222f1806 LC |
3050 | pkt_dev->tx_bytes = 0; |
3051 | pkt_dev->errors = 0; | |
1da177e4 LT |
3052 | } |
3053 | ||
3054 | /* Set up structure for sending pkts, clear counters */ | |
3055 | ||
3056 | static void pktgen_run(struct pktgen_thread *t) | |
3057 | { | |
c26a8016 | 3058 | struct pktgen_dev *pkt_dev; |
1da177e4 LT |
3059 | int started = 0; |
3060 | ||
25c4e53a | 3061 | pr_debug("pktgen: entering pktgen_run. %p\n", t); |
1da177e4 LT |
3062 | |
3063 | if_lock(t); | |
c26a8016 | 3064 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
1da177e4 LT |
3065 | |
3066 | /* | |
3067 | * setup odev and create initial packet. | |
3068 | */ | |
3069 | pktgen_setup_inject(pkt_dev); | |
3070 | ||
222f1806 | 3071 | if (pkt_dev->odev) { |
1da177e4 | 3072 | pktgen_clear_counters(pkt_dev); |
222f1806 | 3073 | pkt_dev->running = 1; /* Cranke yeself! */ |
1da177e4 LT |
3074 | pkt_dev->skb = NULL; |
3075 | pkt_dev->started_at = getCurUs(); | |
222f1806 | 3076 | pkt_dev->next_tx_us = getCurUs(); /* Transmit immediately */ |
1da177e4 | 3077 | pkt_dev->next_tx_ns = 0; |
16dab72f | 3078 | set_pkt_overhead(pkt_dev); |
222f1806 | 3079 | |
1da177e4 LT |
3080 | strcpy(pkt_dev->result, "Starting"); |
3081 | started++; | |
222f1806 | 3082 | } else |
1da177e4 LT |
3083 | strcpy(pkt_dev->result, "Error starting"); |
3084 | } | |
3085 | if_unlock(t); | |
222f1806 LC |
3086 | if (started) |
3087 | t->control &= ~(T_STOP); | |
1da177e4 LT |
3088 | } |
3089 | ||
3090 | static void pktgen_stop_all_threads_ifs(void) | |
3091 | { | |
cdcdbe0b | 3092 | struct pktgen_thread *t; |
1da177e4 | 3093 | |
25c4e53a | 3094 | pr_debug("pktgen: entering pktgen_stop_all_threads_ifs.\n"); |
1da177e4 | 3095 | |
6146e6a4 | 3096 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3097 | |
3098 | list_for_each_entry(t, &pktgen_threads, th_list) | |
95ed63f7 | 3099 | t->control |= T_STOP; |
cdcdbe0b | 3100 | |
6146e6a4 | 3101 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3102 | } |
3103 | ||
222f1806 | 3104 | static int thread_is_running(struct pktgen_thread *t) |
1da177e4 | 3105 | { |
c26a8016 | 3106 | struct pktgen_dev *pkt_dev; |
222f1806 | 3107 | int res = 0; |
1da177e4 | 3108 | |
c26a8016 LC |
3109 | list_for_each_entry(pkt_dev, &t->if_list, list) |
3110 | if (pkt_dev->running) { | |
1da177e4 LT |
3111 | res = 1; |
3112 | break; | |
3113 | } | |
222f1806 | 3114 | return res; |
1da177e4 LT |
3115 | } |
3116 | ||
222f1806 | 3117 | static int pktgen_wait_thread_run(struct pktgen_thread *t) |
1da177e4 | 3118 | { |
222f1806 | 3119 | if_lock(t); |
1da177e4 | 3120 | |
222f1806 | 3121 | while (thread_is_running(t)) { |
1da177e4 | 3122 | |
222f1806 | 3123 | if_unlock(t); |
1da177e4 | 3124 | |
222f1806 | 3125 | msleep_interruptible(100); |
1da177e4 | 3126 | |
222f1806 LC |
3127 | if (signal_pending(current)) |
3128 | goto signal; | |
3129 | if_lock(t); | |
3130 | } | |
3131 | if_unlock(t); | |
3132 | return 1; | |
3133 | signal: | |
3134 | return 0; | |
1da177e4 LT |
3135 | } |
3136 | ||
3137 | static int pktgen_wait_all_threads_run(void) | |
3138 | { | |
cdcdbe0b | 3139 | struct pktgen_thread *t; |
1da177e4 | 3140 | int sig = 1; |
222f1806 | 3141 | |
6146e6a4 | 3142 | mutex_lock(&pktgen_thread_lock); |
cdcdbe0b LC |
3143 | |
3144 | list_for_each_entry(t, &pktgen_threads, th_list) { | |
1da177e4 | 3145 | sig = pktgen_wait_thread_run(t); |
222f1806 LC |
3146 | if (sig == 0) |
3147 | break; | |
1da177e4 | 3148 | } |
cdcdbe0b LC |
3149 | |
3150 | if (sig == 0) | |
3151 | list_for_each_entry(t, &pktgen_threads, th_list) | |
1da177e4 | 3152 | t->control |= (T_STOP); |
cdcdbe0b | 3153 | |
6146e6a4 | 3154 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3155 | return sig; |
3156 | } | |
3157 | ||
3158 | static void pktgen_run_all_threads(void) | |
3159 | { | |
cdcdbe0b | 3160 | struct pktgen_thread *t; |
1da177e4 | 3161 | |
25c4e53a | 3162 | pr_debug("pktgen: entering pktgen_run_all_threads.\n"); |
1da177e4 | 3163 | |
6146e6a4 | 3164 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3165 | |
cdcdbe0b | 3166 | list_for_each_entry(t, &pktgen_threads, th_list) |
1da177e4 | 3167 | t->control |= (T_RUN); |
cdcdbe0b | 3168 | |
6146e6a4 | 3169 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 | 3170 | |
222f1806 LC |
3171 | schedule_timeout_interruptible(msecs_to_jiffies(125)); /* Propagate thread->control */ |
3172 | ||
1da177e4 LT |
3173 | pktgen_wait_all_threads_run(); |
3174 | } | |
3175 | ||
1da177e4 LT |
3176 | static void show_results(struct pktgen_dev *pkt_dev, int nr_frags) |
3177 | { | |
222f1806 LC |
3178 | __u64 total_us, bps, mbps, pps, idle; |
3179 | char *p = pkt_dev->result; | |
3180 | ||
3181 | total_us = pkt_dev->stopped_at - pkt_dev->started_at; | |
3182 | ||
3183 | idle = pkt_dev->idle_acc; | |
3184 | ||
3185 | p += sprintf(p, "OK: %llu(c%llu+d%llu) usec, %llu (%dbyte,%dfrags)\n", | |
3186 | (unsigned long long)total_us, | |
3187 | (unsigned long long)(total_us - idle), | |
3188 | (unsigned long long)idle, | |
3189 | (unsigned long long)pkt_dev->sofar, | |
3190 | pkt_dev->cur_pkt_size, nr_frags); | |
3191 | ||
3192 | pps = pkt_dev->sofar * USEC_PER_SEC; | |
3193 | ||
3194 | while ((total_us >> 32) != 0) { | |
3195 | pps >>= 1; | |
3196 | total_us >>= 1; | |
3197 | } | |
3198 | ||
3199 | do_div(pps, total_us); | |
3200 | ||
3201 | bps = pps * 8 * pkt_dev->cur_pkt_size; | |
3202 | ||
3203 | mbps = bps; | |
3204 | do_div(mbps, 1000000); | |
3205 | p += sprintf(p, " %llupps %lluMb/sec (%llubps) errors: %llu", | |
3206 | (unsigned long long)pps, | |
3207 | (unsigned long long)mbps, | |
3208 | (unsigned long long)bps, | |
3209 | (unsigned long long)pkt_dev->errors); | |
1da177e4 | 3210 | } |
1da177e4 LT |
3211 | |
3212 | /* Set stopped-at timer, remove from running list, do counters & statistics */ | |
3213 | ||
222f1806 | 3214 | static int pktgen_stop_device(struct pktgen_dev *pkt_dev) |
1da177e4 | 3215 | { |
222f1806 | 3216 | int nr_frags = pkt_dev->skb ? skb_shinfo(pkt_dev->skb)->nr_frags : -1; |
95ed63f7 | 3217 | |
222f1806 | 3218 | if (!pkt_dev->running) { |
25a8b254 DM |
3219 | printk(KERN_WARNING "pktgen: interface: %s is already " |
3220 | "stopped\n", pkt_dev->odev->name); | |
222f1806 LC |
3221 | return -EINVAL; |
3222 | } | |
1da177e4 | 3223 | |
222f1806 LC |
3224 | pkt_dev->stopped_at = getCurUs(); |
3225 | pkt_dev->running = 0; | |
1da177e4 | 3226 | |
95ed63f7 | 3227 | show_results(pkt_dev, nr_frags); |
1da177e4 | 3228 | |
222f1806 | 3229 | return 0; |
1da177e4 LT |
3230 | } |
3231 | ||
222f1806 | 3232 | static struct pktgen_dev *next_to_run(struct pktgen_thread *t) |
1da177e4 | 3233 | { |
c26a8016 | 3234 | struct pktgen_dev *pkt_dev, *best = NULL; |
222f1806 | 3235 | |
1da177e4 LT |
3236 | if_lock(t); |
3237 | ||
c26a8016 LC |
3238 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3239 | if (!pkt_dev->running) | |
222f1806 LC |
3240 | continue; |
3241 | if (best == NULL) | |
c26a8016 LC |
3242 | best = pkt_dev; |
3243 | else if (pkt_dev->next_tx_us < best->next_tx_us) | |
3244 | best = pkt_dev; | |
1da177e4 LT |
3245 | } |
3246 | if_unlock(t); | |
222f1806 | 3247 | return best; |
1da177e4 LT |
3248 | } |
3249 | ||
222f1806 LC |
3250 | static void pktgen_stop(struct pktgen_thread *t) |
3251 | { | |
c26a8016 | 3252 | struct pktgen_dev *pkt_dev; |
1da177e4 | 3253 | |
25c4e53a | 3254 | pr_debug("pktgen: entering pktgen_stop\n"); |
1da177e4 | 3255 | |
222f1806 | 3256 | if_lock(t); |
1da177e4 | 3257 | |
c26a8016 LC |
3258 | list_for_each_entry(pkt_dev, &t->if_list, list) { |
3259 | pktgen_stop_device(pkt_dev); | |
3260 | if (pkt_dev->skb) | |
3261 | kfree_skb(pkt_dev->skb); | |
95ed63f7 | 3262 | |
c26a8016 | 3263 | pkt_dev->skb = NULL; |
95ed63f7 | 3264 | } |
1da177e4 | 3265 | |
222f1806 | 3266 | if_unlock(t); |
1da177e4 LT |
3267 | } |
3268 | ||
95ed63f7 AK |
3269 | /* |
3270 | * one of our devices needs to be removed - find it | |
3271 | * and remove it | |
3272 | */ | |
3273 | static void pktgen_rem_one_if(struct pktgen_thread *t) | |
3274 | { | |
c26a8016 LC |
3275 | struct list_head *q, *n; |
3276 | struct pktgen_dev *cur; | |
95ed63f7 | 3277 | |
25c4e53a | 3278 | pr_debug("pktgen: entering pktgen_rem_one_if\n"); |
95ed63f7 AK |
3279 | |
3280 | if_lock(t); | |
3281 | ||
c26a8016 LC |
3282 | list_for_each_safe(q, n, &t->if_list) { |
3283 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 | 3284 | |
222f1806 LC |
3285 | if (!cur->removal_mark) |
3286 | continue; | |
95ed63f7 AK |
3287 | |
3288 | if (cur->skb) | |
3289 | kfree_skb(cur->skb); | |
3290 | cur->skb = NULL; | |
3291 | ||
3292 | pktgen_remove_device(t, cur); | |
3293 | ||
3294 | break; | |
3295 | } | |
3296 | ||
3297 | if_unlock(t); | |
3298 | } | |
3299 | ||
222f1806 | 3300 | static void pktgen_rem_all_ifs(struct pktgen_thread *t) |
1da177e4 | 3301 | { |
c26a8016 LC |
3302 | struct list_head *q, *n; |
3303 | struct pktgen_dev *cur; | |
222f1806 LC |
3304 | |
3305 | /* Remove all devices, free mem */ | |
95ed63f7 | 3306 | |
25c4e53a | 3307 | pr_debug("pktgen: entering pktgen_rem_all_ifs\n"); |
222f1806 | 3308 | if_lock(t); |
1da177e4 | 3309 | |
c26a8016 LC |
3310 | list_for_each_safe(q, n, &t->if_list) { |
3311 | cur = list_entry(q, struct pktgen_dev, list); | |
95ed63f7 AK |
3312 | |
3313 | if (cur->skb) | |
3314 | kfree_skb(cur->skb); | |
3315 | cur->skb = NULL; | |
3316 | ||
1da177e4 LT |
3317 | pktgen_remove_device(t, cur); |
3318 | } | |
3319 | ||
222f1806 | 3320 | if_unlock(t); |
1da177e4 LT |
3321 | } |
3322 | ||
222f1806 | 3323 | static void pktgen_rem_thread(struct pktgen_thread *t) |
1da177e4 | 3324 | { |
222f1806 | 3325 | /* Remove from the thread list */ |
1da177e4 | 3326 | |
ee74baa7 | 3327 | remove_proc_entry(t->tsk->comm, pg_proc_dir); |
1da177e4 | 3328 | |
6146e6a4 | 3329 | mutex_lock(&pktgen_thread_lock); |
1da177e4 | 3330 | |
cdcdbe0b LC |
3331 | list_del(&t->th_list); |
3332 | ||
6146e6a4 | 3333 | mutex_unlock(&pktgen_thread_lock); |
1da177e4 LT |
3334 | } |
3335 | ||
3336 | static __inline__ void pktgen_xmit(struct pktgen_dev *pkt_dev) | |
3337 | { | |
3338 | struct net_device *odev = NULL; | |
fd2ea0a7 | 3339 | struct netdev_queue *txq; |
1da177e4 | 3340 | __u64 idle_start = 0; |
fd2ea0a7 | 3341 | u16 queue_map; |
1da177e4 LT |
3342 | int ret; |
3343 | ||
3344 | odev = pkt_dev->odev; | |
222f1806 | 3345 | |
1da177e4 LT |
3346 | if (pkt_dev->delay_us || pkt_dev->delay_ns) { |
3347 | u64 now; | |
3348 | ||
3349 | now = getCurUs(); | |
3350 | if (now < pkt_dev->next_tx_us) | |
3351 | spin(pkt_dev, pkt_dev->next_tx_us); | |
3352 | ||
3353 | /* This is max DELAY, this has special meaning of | |
3354 | * "never transmit" | |
3355 | */ | |
3356 | if (pkt_dev->delay_us == 0x7FFFFFFF) { | |
3357 | pkt_dev->next_tx_us = getCurUs() + pkt_dev->delay_us; | |
3358 | pkt_dev->next_tx_ns = pkt_dev->delay_ns; | |
3359 | goto out; | |
3360 | } | |
3361 | } | |
222f1806 | 3362 | |
fd2ea0a7 DM |
3363 | if (!pkt_dev->skb) { |
3364 | set_cur_queue_map(pkt_dev); | |
3365 | queue_map = pkt_dev->cur_queue_map; | |
3366 | } else { | |
3367 | queue_map = skb_get_queue_mapping(pkt_dev->skb); | |
3368 | } | |
3369 | ||
3370 | txq = netdev_get_tx_queue(odev, queue_map); | |
3371 | if (netif_tx_queue_stopped(txq) || | |
c3f26a26 | 3372 | netif_tx_queue_frozen(txq) || |
378be2c0 | 3373 | need_resched()) { |
1da177e4 | 3374 | idle_start = getCurUs(); |
222f1806 | 3375 | |
1da177e4 LT |
3376 | if (!netif_running(odev)) { |
3377 | pktgen_stop_device(pkt_dev); | |
95ed63f7 AK |
3378 | if (pkt_dev->skb) |
3379 | kfree_skb(pkt_dev->skb); | |
3380 | pkt_dev->skb = NULL; | |
1da177e4 LT |
3381 | goto out; |
3382 | } | |
222f1806 | 3383 | if (need_resched()) |
1da177e4 | 3384 | schedule(); |
222f1806 | 3385 | |
1da177e4 | 3386 | pkt_dev->idle_acc += getCurUs() - idle_start; |
222f1806 | 3387 | |
c3f26a26 DM |
3388 | if (netif_tx_queue_stopped(txq) || |
3389 | netif_tx_queue_frozen(txq)) { | |
222f1806 | 3390 | pkt_dev->next_tx_us = getCurUs(); /* TODO */ |
1da177e4 | 3391 | pkt_dev->next_tx_ns = 0; |
222f1806 | 3392 | goto out; /* Try the next interface */ |
1da177e4 LT |
3393 | } |
3394 | } | |
222f1806 | 3395 | |
1da177e4 | 3396 | if (pkt_dev->last_ok || !pkt_dev->skb) { |
222f1806 LC |
3397 | if ((++pkt_dev->clone_count >= pkt_dev->clone_skb) |
3398 | || (!pkt_dev->skb)) { | |
1da177e4 | 3399 | /* build a new pkt */ |
222f1806 | 3400 | if (pkt_dev->skb) |
1da177e4 | 3401 | kfree_skb(pkt_dev->skb); |
222f1806 | 3402 | |
1da177e4 LT |
3403 | pkt_dev->skb = fill_packet(odev, pkt_dev); |
3404 | if (pkt_dev->skb == NULL) { | |
25a8b254 DM |
3405 | printk(KERN_ERR "pktgen: ERROR: couldn't " |
3406 | "allocate skb in fill_packet.\n"); | |
1da177e4 | 3407 | schedule(); |
222f1806 | 3408 | pkt_dev->clone_count--; /* back out increment, OOM */ |
1da177e4 LT |
3409 | goto out; |
3410 | } | |
3411 | pkt_dev->allocated_skbs++; | |
222f1806 | 3412 | pkt_dev->clone_count = 0; /* reset counter */ |
1da177e4 LT |
3413 | } |
3414 | } | |
95ed63f7 | 3415 | |
fd2ea0a7 DM |
3416 | /* fill_packet() might have changed the queue */ |
3417 | queue_map = skb_get_queue_mapping(pkt_dev->skb); | |
3418 | txq = netdev_get_tx_queue(odev, queue_map); | |
3419 | ||
3420 | __netif_tx_lock_bh(txq); | |
c3f26a26 DM |
3421 | if (!netif_tx_queue_stopped(txq) && |
3422 | !netif_tx_queue_frozen(txq)) { | |
1da177e4 LT |
3423 | |
3424 | atomic_inc(&(pkt_dev->skb->users)); | |
222f1806 | 3425 | retry_now: |
1da177e4 LT |
3426 | ret = odev->hard_start_xmit(pkt_dev->skb, odev); |
3427 | if (likely(ret == NETDEV_TX_OK)) { | |
222f1806 | 3428 | pkt_dev->last_ok = 1; |
1da177e4 LT |
3429 | pkt_dev->sofar++; |
3430 | pkt_dev->seq_num++; | |
3431 | pkt_dev->tx_bytes += pkt_dev->cur_pkt_size; | |
222f1806 LC |
3432 | |
3433 | } else if (ret == NETDEV_TX_LOCKED | |
1da177e4 LT |
3434 | && (odev->features & NETIF_F_LLTX)) { |
3435 | cpu_relax(); | |
3436 | goto retry_now; | |
222f1806 LC |
3437 | } else { /* Retry it next time */ |
3438 | ||
1da177e4 | 3439 | atomic_dec(&(pkt_dev->skb->users)); |
222f1806 | 3440 | |
1da177e4 LT |
3441 | if (debug && net_ratelimit()) |
3442 | printk(KERN_INFO "pktgen: Hard xmit error\n"); | |
222f1806 | 3443 | |
1da177e4 LT |
3444 | pkt_dev->errors++; |
3445 | pkt_dev->last_ok = 0; | |
3446 | } | |
3447 | ||
3448 | pkt_dev->next_tx_us = getCurUs(); | |
3449 | pkt_dev->next_tx_ns = 0; | |
3450 | ||
3451 | pkt_dev->next_tx_us += pkt_dev->delay_us; | |
3452 | pkt_dev->next_tx_ns += pkt_dev->delay_ns; | |
3453 | ||
3454 | if (pkt_dev->next_tx_ns > 1000) { | |
3455 | pkt_dev->next_tx_us++; | |
3456 | pkt_dev->next_tx_ns -= 1000; | |
3457 | } | |
222f1806 | 3458 | } |
1da177e4 | 3459 | |
222f1806 LC |
3460 | else { /* Retry it next time */ |
3461 | pkt_dev->last_ok = 0; | |
3462 | pkt_dev->next_tx_us = getCurUs(); /* TODO */ | |
1da177e4 | 3463 | pkt_dev->next_tx_ns = 0; |
222f1806 | 3464 | } |
1da177e4 | 3465 | |
fd2ea0a7 | 3466 | __netif_tx_unlock_bh(txq); |
222f1806 | 3467 | |
1da177e4 LT |
3468 | /* If pkt_dev->count is zero, then run forever */ |
3469 | if ((pkt_dev->count != 0) && (pkt_dev->sofar >= pkt_dev->count)) { | |
3470 | if (atomic_read(&(pkt_dev->skb->users)) != 1) { | |
3471 | idle_start = getCurUs(); | |
3472 | while (atomic_read(&(pkt_dev->skb->users)) != 1) { | |
3473 | if (signal_pending(current)) { | |
3474 | break; | |
3475 | } | |
3476 | schedule(); | |
3477 | } | |
3478 | pkt_dev->idle_acc += getCurUs() - idle_start; | |
3479 | } | |
222f1806 | 3480 | |
1da177e4 LT |
3481 | /* Done with this */ |
3482 | pktgen_stop_device(pkt_dev); | |
95ed63f7 AK |
3483 | if (pkt_dev->skb) |
3484 | kfree_skb(pkt_dev->skb); | |
3485 | pkt_dev->skb = NULL; | |
222f1806 LC |
3486 | } |
3487 | out:; | |
3488 | } | |
1da177e4 | 3489 | |
4ec93edb | 3490 | /* |
1da177e4 LT |
3491 | * Main loop of the thread goes here |
3492 | */ | |
3493 | ||
ee74baa7 | 3494 | static int pktgen_thread_worker(void *arg) |
1da177e4 LT |
3495 | { |
3496 | DEFINE_WAIT(wait); | |
ee74baa7 | 3497 | struct pktgen_thread *t = arg; |
222f1806 | 3498 | struct pktgen_dev *pkt_dev = NULL; |
1da177e4 | 3499 | int cpu = t->cpu; |
1da177e4 | 3500 | |
ee74baa7 | 3501 | BUG_ON(smp_processor_id() != cpu); |
1da177e4 LT |
3502 | |
3503 | init_waitqueue_head(&t->queue); | |
d3ede327 | 3504 | complete(&t->start_done); |
1da177e4 | 3505 | |
ba25f9dc | 3506 | pr_debug("pktgen: starting pktgen/%d: pid=%d\n", cpu, task_pid_nr(current)); |
1da177e4 | 3507 | |
ee74baa7 | 3508 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3509 | |
83144186 RW |
3510 | set_freezable(); |
3511 | ||
ee74baa7 DM |
3512 | while (!kthread_should_stop()) { |
3513 | pkt_dev = next_to_run(t); | |
1da177e4 | 3514 | |
ee74baa7 DM |
3515 | if (!pkt_dev && |
3516 | (t->control & (T_STOP | T_RUN | T_REMDEVALL | T_REMDEV)) | |
3517 | == 0) { | |
3518 | prepare_to_wait(&(t->queue), &wait, | |
3519 | TASK_INTERRUPTIBLE); | |
3520 | schedule_timeout(HZ / 10); | |
3521 | finish_wait(&(t->queue), &wait); | |
3522 | } | |
1da177e4 | 3523 | |
ee74baa7 | 3524 | __set_current_state(TASK_RUNNING); |
222f1806 | 3525 | |
b163911f | 3526 | if (pkt_dev) |
1da177e4 LT |
3527 | pktgen_xmit(pkt_dev); |
3528 | ||
222f1806 | 3529 | if (t->control & T_STOP) { |
1da177e4 LT |
3530 | pktgen_stop(t); |
3531 | t->control &= ~(T_STOP); | |
3532 | } | |
3533 | ||
222f1806 | 3534 | if (t->control & T_RUN) { |
1da177e4 LT |
3535 | pktgen_run(t); |
3536 | t->control &= ~(T_RUN); | |
3537 | } | |
3538 | ||
222f1806 | 3539 | if (t->control & T_REMDEVALL) { |
1da177e4 | 3540 | pktgen_rem_all_ifs(t); |
95ed63f7 AK |
3541 | t->control &= ~(T_REMDEVALL); |
3542 | } | |
3543 | ||
222f1806 | 3544 | if (t->control & T_REMDEV) { |
95ed63f7 | 3545 | pktgen_rem_one_if(t); |
1da177e4 LT |
3546 | t->control &= ~(T_REMDEV); |
3547 | } | |
3548 | ||
09fe3ef4 AM |
3549 | try_to_freeze(); |
3550 | ||
ee74baa7 | 3551 | set_current_state(TASK_INTERRUPTIBLE); |
222f1806 | 3552 | } |
1da177e4 | 3553 | |
25c4e53a | 3554 | pr_debug("pktgen: %s stopping all device\n", t->tsk->comm); |
222f1806 | 3555 | pktgen_stop(t); |
1da177e4 | 3556 | |
25c4e53a | 3557 | pr_debug("pktgen: %s removing all device\n", t->tsk->comm); |
222f1806 | 3558 | pktgen_rem_all_ifs(t); |
1da177e4 | 3559 | |
25c4e53a | 3560 | pr_debug("pktgen: %s removing thread.\n", t->tsk->comm); |
222f1806 | 3561 | pktgen_rem_thread(t); |
cdcdbe0b | 3562 | |
ee74baa7 | 3563 | return 0; |
1da177e4 LT |
3564 | } |
3565 | ||
222f1806 LC |
3566 | static struct pktgen_dev *pktgen_find_dev(struct pktgen_thread *t, |
3567 | const char *ifname) | |
1da177e4 | 3568 | { |
c26a8016 | 3569 | struct pktgen_dev *p, *pkt_dev = NULL; |
222f1806 LC |
3570 | if_lock(t); |
3571 | ||
c26a8016 | 3572 | list_for_each_entry(p, &t->if_list, list) |
39df232f | 3573 | if (strncmp(p->odev->name, ifname, IFNAMSIZ) == 0) { |
c26a8016 | 3574 | pkt_dev = p; |
222f1806 LC |
3575 | break; |
3576 | } | |
222f1806 LC |
3577 | |
3578 | if_unlock(t); | |
25c4e53a | 3579 | pr_debug("pktgen: find_dev(%s) returning %p\n", ifname, pkt_dev); |
222f1806 | 3580 | return pkt_dev; |
1da177e4 LT |
3581 | } |
3582 | ||
4ec93edb YH |
3583 | /* |
3584 | * Adds a dev at front of if_list. | |
1da177e4 LT |
3585 | */ |
3586 | ||
222f1806 LC |
3587 | static int add_dev_to_thread(struct pktgen_thread *t, |
3588 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3589 | { |
3590 | int rv = 0; | |
222f1806 LC |
3591 | |
3592 | if_lock(t); | |
3593 | ||
3594 | if (pkt_dev->pg_thread) { | |
25a8b254 DM |
3595 | printk(KERN_ERR "pktgen: ERROR: already assigned " |
3596 | "to a thread.\n"); | |
222f1806 LC |
3597 | rv = -EBUSY; |
3598 | goto out; | |
3599 | } | |
c26a8016 LC |
3600 | |
3601 | list_add(&pkt_dev->list, &t->if_list); | |
222f1806 | 3602 | pkt_dev->pg_thread = t; |
1da177e4 LT |
3603 | pkt_dev->running = 0; |
3604 | ||
222f1806 LC |
3605 | out: |
3606 | if_unlock(t); | |
3607 | return rv; | |
1da177e4 LT |
3608 | } |
3609 | ||
3610 | /* Called under thread lock */ | |
3611 | ||
222f1806 | 3612 | static int pktgen_add_device(struct pktgen_thread *t, const char *ifname) |
1da177e4 | 3613 | { |
222f1806 | 3614 | struct pktgen_dev *pkt_dev; |
39df232f | 3615 | int err; |
222f1806 | 3616 | |
1da177e4 LT |
3617 | /* We don't allow a device to be on several threads */ |
3618 | ||
d50a6b56 SH |
3619 | pkt_dev = __pktgen_NN_threads(ifname, FIND); |
3620 | if (pkt_dev) { | |
25a8b254 | 3621 | printk(KERN_ERR "pktgen: ERROR: interface already used.\n"); |
222f1806 LC |
3622 | return -EBUSY; |
3623 | } | |
d50a6b56 SH |
3624 | |
3625 | pkt_dev = kzalloc(sizeof(struct pktgen_dev), GFP_KERNEL); | |
3626 | if (!pkt_dev) | |
3627 | return -ENOMEM; | |
3628 | ||
222f1806 | 3629 | pkt_dev->flows = vmalloc(MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 SH |
3630 | if (pkt_dev->flows == NULL) { |
3631 | kfree(pkt_dev); | |
3632 | return -ENOMEM; | |
3633 | } | |
222f1806 | 3634 | memset(pkt_dev->flows, 0, MAX_CFLOWS * sizeof(struct flow_state)); |
d50a6b56 | 3635 | |
95ed63f7 | 3636 | pkt_dev->removal_mark = 0; |
d50a6b56 SH |
3637 | pkt_dev->min_pkt_size = ETH_ZLEN; |
3638 | pkt_dev->max_pkt_size = ETH_ZLEN; | |
3639 | pkt_dev->nfrags = 0; | |
3640 | pkt_dev->clone_skb = pg_clone_skb_d; | |
3641 | pkt_dev->delay_us = pg_delay_d / 1000; | |
3642 | pkt_dev->delay_ns = pg_delay_d % 1000; | |
3643 | pkt_dev->count = pg_count_d; | |
3644 | pkt_dev->sofar = 0; | |
222f1806 | 3645 | pkt_dev->udp_src_min = 9; /* sink port */ |
d50a6b56 SH |
3646 | pkt_dev->udp_src_max = 9; |
3647 | pkt_dev->udp_dst_min = 9; | |
3648 | pkt_dev->udp_dst_max = 9; | |
3649 | ||
34954ddc FF |
3650 | pkt_dev->vlan_p = 0; |
3651 | pkt_dev->vlan_cfi = 0; | |
3652 | pkt_dev->vlan_id = 0xffff; | |
3653 | pkt_dev->svlan_p = 0; | |
3654 | pkt_dev->svlan_cfi = 0; | |
3655 | pkt_dev->svlan_id = 0xffff; | |
3656 | ||
39df232f SH |
3657 | err = pktgen_setup_dev(pkt_dev, ifname); |
3658 | if (err) | |
3659 | goto out1; | |
d50a6b56 | 3660 | |
5efdccbc DL |
3661 | pkt_dev->entry = proc_create_data(ifname, 0600, pg_proc_dir, |
3662 | &pktgen_if_fops, pkt_dev); | |
39df232f | 3663 | if (!pkt_dev->entry) { |
25a8b254 | 3664 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
d50a6b56 | 3665 | PG_PROC_DIR, ifname); |
39df232f SH |
3666 | err = -EINVAL; |
3667 | goto out2; | |
d50a6b56 | 3668 | } |
a553e4a6 JHS |
3669 | #ifdef CONFIG_XFRM |
3670 | pkt_dev->ipsmode = XFRM_MODE_TRANSPORT; | |
3671 | pkt_dev->ipsproto = IPPROTO_ESP; | |
3672 | #endif | |
d50a6b56 SH |
3673 | |
3674 | return add_dev_to_thread(t, pkt_dev); | |
39df232f SH |
3675 | out2: |
3676 | dev_put(pkt_dev->odev); | |
3677 | out1: | |
a553e4a6 JHS |
3678 | #ifdef CONFIG_XFRM |
3679 | free_SAs(pkt_dev); | |
3680 | #endif | |
39df232f SH |
3681 | if (pkt_dev->flows) |
3682 | vfree(pkt_dev->flows); | |
3683 | kfree(pkt_dev); | |
3684 | return err; | |
1da177e4 LT |
3685 | } |
3686 | ||
ee74baa7 | 3687 | static int __init pktgen_create_thread(int cpu) |
1da177e4 | 3688 | { |
cdcdbe0b | 3689 | struct pktgen_thread *t; |
d50a6b56 | 3690 | struct proc_dir_entry *pe; |
ee74baa7 | 3691 | struct task_struct *p; |
222f1806 LC |
3692 | |
3693 | t = kzalloc(sizeof(struct pktgen_thread), GFP_KERNEL); | |
3694 | if (!t) { | |
25a8b254 DM |
3695 | printk(KERN_ERR "pktgen: ERROR: out of memory, can't " |
3696 | "create new thread.\n"); | |
222f1806 LC |
3697 | return -ENOMEM; |
3698 | } | |
3699 | ||
222f1806 | 3700 | spin_lock_init(&t->if_lock); |
1da177e4 | 3701 | t->cpu = cpu; |
222f1806 | 3702 | |
ee74baa7 DM |
3703 | INIT_LIST_HEAD(&t->if_list); |
3704 | ||
3705 | list_add_tail(&t->th_list, &pktgen_threads); | |
d3ede327 | 3706 | init_completion(&t->start_done); |
ee74baa7 DM |
3707 | |
3708 | p = kthread_create(pktgen_thread_worker, t, "kpktgend_%d", cpu); | |
3709 | if (IS_ERR(p)) { | |
25a8b254 DM |
3710 | printk(KERN_ERR "pktgen: kernel_thread() failed " |
3711 | "for cpu %d\n", t->cpu); | |
ee74baa7 DM |
3712 | list_del(&t->th_list); |
3713 | kfree(t); | |
3714 | return PTR_ERR(p); | |
3715 | } | |
3716 | kthread_bind(p, cpu); | |
3717 | t->tsk = p; | |
3718 | ||
5efdccbc DL |
3719 | pe = proc_create_data(t->tsk->comm, 0600, pg_proc_dir, |
3720 | &pktgen_thread_fops, t); | |
222f1806 | 3721 | if (!pe) { |
25a8b254 | 3722 | printk(KERN_ERR "pktgen: cannot create %s/%s procfs entry.\n", |
ee74baa7 DM |
3723 | PG_PROC_DIR, t->tsk->comm); |
3724 | kthread_stop(p); | |
3725 | list_del(&t->th_list); | |
222f1806 LC |
3726 | kfree(t); |
3727 | return -EINVAL; | |
3728 | } | |
d50a6b56 | 3729 | |
ee74baa7 | 3730 | wake_up_process(p); |
d3ede327 | 3731 | wait_for_completion(&t->start_done); |
1da177e4 LT |
3732 | |
3733 | return 0; | |
3734 | } | |
3735 | ||
4ec93edb YH |
3736 | /* |
3737 | * Removes a device from the thread if_list. | |
1da177e4 | 3738 | */ |
222f1806 LC |
3739 | static void _rem_dev_from_if_list(struct pktgen_thread *t, |
3740 | struct pktgen_dev *pkt_dev) | |
1da177e4 | 3741 | { |
c26a8016 LC |
3742 | struct list_head *q, *n; |
3743 | struct pktgen_dev *p; | |
1da177e4 | 3744 | |
c26a8016 LC |
3745 | list_for_each_safe(q, n, &t->if_list) { |
3746 | p = list_entry(q, struct pktgen_dev, list); | |
3747 | if (p == pkt_dev) | |
3748 | list_del(&p->list); | |
1da177e4 LT |
3749 | } |
3750 | } | |
3751 | ||
222f1806 LC |
3752 | static int pktgen_remove_device(struct pktgen_thread *t, |
3753 | struct pktgen_dev *pkt_dev) | |
1da177e4 LT |
3754 | { |
3755 | ||
25c4e53a | 3756 | pr_debug("pktgen: remove_device pkt_dev=%p\n", pkt_dev); |
1da177e4 | 3757 | |
222f1806 | 3758 | if (pkt_dev->running) { |
25a8b254 DM |
3759 | printk(KERN_WARNING "pktgen: WARNING: trying to remove a " |
3760 | "running interface, stopping it now.\n"); | |
222f1806 LC |
3761 | pktgen_stop_device(pkt_dev); |
3762 | } | |
3763 | ||
3764 | /* Dis-associate from the interface */ | |
1da177e4 LT |
3765 | |
3766 | if (pkt_dev->odev) { | |
3767 | dev_put(pkt_dev->odev); | |
222f1806 LC |
3768 | pkt_dev->odev = NULL; |
3769 | } | |
3770 | ||
1da177e4 LT |
3771 | /* And update the thread if_list */ |
3772 | ||
3773 | _rem_dev_from_if_list(t, pkt_dev); | |
3774 | ||
39df232f SH |
3775 | if (pkt_dev->entry) |
3776 | remove_proc_entry(pkt_dev->entry->name, pg_proc_dir); | |
1da177e4 | 3777 | |
a553e4a6 JHS |
3778 | #ifdef CONFIG_XFRM |
3779 | free_SAs(pkt_dev); | |
3780 | #endif | |
1da177e4 LT |
3781 | if (pkt_dev->flows) |
3782 | vfree(pkt_dev->flows); | |
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; | |
3797 | pg_proc_dir->owner = THIS_MODULE; | |
1da177e4 | 3798 | |
25296d59 | 3799 | pe = proc_create(PGCTRL, 0600, pg_proc_dir, &pktgen_fops); |
222f1806 | 3800 | if (pe == NULL) { |
25a8b254 DM |
3801 | printk(KERN_ERR "pktgen: ERROR: cannot create %s " |
3802 | "procfs entry.\n", PGCTRL); | |
457c4cbc | 3803 | proc_net_remove(&init_net, PG_PROC_DIR); |
222f1806 LC |
3804 | return -EINVAL; |
3805 | } | |
1da177e4 | 3806 | |
1da177e4 LT |
3807 | /* Register us to receive netdevice events */ |
3808 | register_netdevice_notifier(&pktgen_notifier_block); | |
222f1806 | 3809 | |
670c02c2 | 3810 | for_each_online_cpu(cpu) { |
8024bb24 | 3811 | int err; |
1da177e4 | 3812 | |
ee74baa7 | 3813 | err = pktgen_create_thread(cpu); |
8024bb24 | 3814 | if (err) |
25a8b254 DM |
3815 | printk(KERN_WARNING "pktgen: WARNING: Cannot create " |
3816 | "thread for cpu %d (%d)\n", cpu, err); | |
222f1806 | 3817 | } |
8024bb24 LC |
3818 | |
3819 | if (list_empty(&pktgen_threads)) { | |
25a8b254 DM |
3820 | printk(KERN_ERR "pktgen: ERROR: Initialization failed for " |
3821 | "all threads\n"); | |
8024bb24 LC |
3822 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3823 | remove_proc_entry(PGCTRL, pg_proc_dir); | |
457c4cbc | 3824 | proc_net_remove(&init_net, PG_PROC_DIR); |
8024bb24 LC |
3825 | return -ENODEV; |
3826 | } | |
3827 | ||
222f1806 | 3828 | return 0; |
1da177e4 LT |
3829 | } |
3830 | ||
3831 | static void __exit pg_cleanup(void) | |
3832 | { | |
cdcdbe0b LC |
3833 | struct pktgen_thread *t; |
3834 | struct list_head *q, *n; | |
1da177e4 LT |
3835 | wait_queue_head_t queue; |
3836 | init_waitqueue_head(&queue); | |
3837 | ||
222f1806 | 3838 | /* Stop all interfaces & threads */ |
1da177e4 | 3839 | |
cdcdbe0b LC |
3840 | list_for_each_safe(q, n, &pktgen_threads) { |
3841 | t = list_entry(q, struct pktgen_thread, th_list); | |
ee74baa7 DM |
3842 | kthread_stop(t->tsk); |
3843 | kfree(t); | |
222f1806 | 3844 | } |
1da177e4 | 3845 | |
222f1806 | 3846 | /* Un-register us from receiving netdevice events */ |
1da177e4 LT |
3847 | unregister_netdevice_notifier(&pktgen_notifier_block); |
3848 | ||
222f1806 | 3849 | /* Clean up proc file system */ |
d50a6b56 | 3850 | remove_proc_entry(PGCTRL, pg_proc_dir); |
457c4cbc | 3851 | proc_net_remove(&init_net, PG_PROC_DIR); |
1da177e4 LT |
3852 | } |
3853 | ||
1da177e4 LT |
3854 | module_init(pg_init); |
3855 | module_exit(pg_cleanup); | |
3856 | ||
3857 | MODULE_AUTHOR("Robert Olsson <robert.olsson@its.uu.se"); | |
3858 | MODULE_DESCRIPTION("Packet Generator tool"); | |
3859 | MODULE_LICENSE("GPL"); | |
3860 | module_param(pg_count_d, int, 0); | |
3861 | module_param(pg_delay_d, int, 0); | |
3862 | module_param(pg_clone_skb_d, int, 0); | |
3863 | module_param(debug, int, 0); |