Commit | Line | Data |
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cc04acf5 KS |
1 | /* |
2 | * An implementation of key value pair (KVP) functionality for Linux. | |
3 | * | |
4 | * | |
5 | * Copyright (C) 2010, Novell, Inc. | |
6 | * Author : K. Y. Srinivasan <ksrinivasan@novell.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License version 2 as published | |
10 | * by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
15 | * NON INFRINGEMENT. See the GNU General Public License for more | |
16 | * details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
21 | * | |
22 | */ | |
23 | ||
24 | ||
25 | #include <sys/types.h> | |
26 | #include <sys/socket.h> | |
27 | #include <sys/poll.h> | |
28 | #include <sys/utsname.h> | |
cc04acf5 KS |
29 | #include <stdio.h> |
30 | #include <stdlib.h> | |
31 | #include <unistd.h> | |
32 | #include <string.h> | |
32061b4d | 33 | #include <ctype.h> |
cc04acf5 KS |
34 | #include <errno.h> |
35 | #include <arpa/inet.h> | |
36 | #include <linux/connector.h> | |
eab6af71 | 37 | #include <linux/hyperv.h> |
cc04acf5 | 38 | #include <linux/netlink.h> |
cc04acf5 KS |
39 | #include <ifaddrs.h> |
40 | #include <netdb.h> | |
41 | #include <syslog.h> | |
db425334 S |
42 | #include <sys/stat.h> |
43 | #include <fcntl.h> | |
32061b4d | 44 | #include <dirent.h> |
3321e738 | 45 | #include <net/if.h> |
170f4bea | 46 | #include <getopt.h> |
cc04acf5 KS |
47 | |
48 | /* | |
49 | * KVP protocol: The user mode component first registers with the | |
50 | * the kernel component. Subsequently, the kernel component requests, data | |
51 | * for the specified keys. In response to this message the user mode component | |
52 | * fills in the value corresponding to the specified key. We overload the | |
53 | * sequence field in the cn_msg header to define our KVP message types. | |
54 | * | |
55 | * We use this infrastructure for also supporting queries from user mode | |
56 | * application for state that may be maintained in the KVP kernel component. | |
57 | * | |
cc04acf5 KS |
58 | */ |
59 | ||
cc04acf5 KS |
60 | |
61 | enum key_index { | |
62 | FullyQualifiedDomainName = 0, | |
63 | IntegrationServicesVersion, /*This key is serviced in the kernel*/ | |
64 | NetworkAddressIPv4, | |
65 | NetworkAddressIPv6, | |
66 | OSBuildNumber, | |
67 | OSName, | |
68 | OSMajorVersion, | |
69 | OSMinorVersion, | |
70 | OSVersion, | |
71 | ProcessorArchitecture | |
72 | }; | |
73 | ||
32061b4d S |
74 | |
75 | enum { | |
76 | IPADDR = 0, | |
77 | NETMASK, | |
78 | GATEWAY, | |
79 | DNS | |
80 | }; | |
81 | ||
cc04acf5 | 82 | static struct sockaddr_nl addr; |
b47a81dc | 83 | static int in_hand_shake = 1; |
cc04acf5 | 84 | |
7989f7d5 OH |
85 | static char *os_name = ""; |
86 | static char *os_major = ""; | |
87 | static char *os_minor = ""; | |
88 | static char *processor_arch; | |
89 | static char *os_build; | |
f426a36c | 90 | static char *os_version; |
b47a81dc | 91 | static char *lic_version = "Unknown version"; |
58125210 | 92 | static char full_domain_name[HV_KVP_EXCHANGE_MAX_VALUE_SIZE]; |
7989f7d5 | 93 | static struct utsname uts_buf; |
cc04acf5 | 94 | |
32061b4d S |
95 | /* |
96 | * The location of the interface configuration file. | |
97 | */ | |
98 | ||
40424f5f | 99 | #define KVP_CONFIG_LOC "/var/lib/hyperv" |
db425334 S |
100 | |
101 | #define MAX_FILE_NAME 100 | |
102 | #define ENTRIES_PER_BLOCK 50 | |
103 | ||
f4685fa6 TH |
104 | #ifndef SOL_NETLINK |
105 | #define SOL_NETLINK 270 | |
106 | #endif | |
107 | ||
db425334 | 108 | struct kvp_record { |
d0cbc156 S |
109 | char key[HV_KVP_EXCHANGE_MAX_KEY_SIZE]; |
110 | char value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE]; | |
db425334 S |
111 | }; |
112 | ||
113 | struct kvp_file_state { | |
114 | int fd; | |
115 | int num_blocks; | |
116 | struct kvp_record *records; | |
117 | int num_records; | |
d0cbc156 | 118 | char fname[MAX_FILE_NAME]; |
db425334 S |
119 | }; |
120 | ||
121 | static struct kvp_file_state kvp_file_info[KVP_POOL_COUNT]; | |
122 | ||
123 | static void kvp_acquire_lock(int pool) | |
124 | { | |
125 | struct flock fl = {F_WRLCK, SEEK_SET, 0, 0, 0}; | |
126 | fl.l_pid = getpid(); | |
127 | ||
128 | if (fcntl(kvp_file_info[pool].fd, F_SETLKW, &fl) == -1) { | |
12e50c30 TH |
129 | syslog(LOG_ERR, "Failed to acquire the lock pool: %d; error: %d %s", pool, |
130 | errno, strerror(errno)); | |
6bb22fea | 131 | exit(EXIT_FAILURE); |
db425334 S |
132 | } |
133 | } | |
134 | ||
135 | static void kvp_release_lock(int pool) | |
136 | { | |
137 | struct flock fl = {F_UNLCK, SEEK_SET, 0, 0, 0}; | |
138 | fl.l_pid = getpid(); | |
139 | ||
140 | if (fcntl(kvp_file_info[pool].fd, F_SETLK, &fl) == -1) { | |
12e50c30 TH |
141 | syslog(LOG_ERR, "Failed to release the lock pool: %d; error: %d %s", pool, |
142 | errno, strerror(errno)); | |
6bb22fea | 143 | exit(EXIT_FAILURE); |
db425334 S |
144 | } |
145 | } | |
146 | ||
147 | static void kvp_update_file(int pool) | |
148 | { | |
149 | FILE *filep; | |
db425334 S |
150 | |
151 | /* | |
152 | * We are going to write our in-memory registry out to | |
153 | * disk; acquire the lock first. | |
154 | */ | |
155 | kvp_acquire_lock(pool); | |
156 | ||
8467fdbb | 157 | filep = fopen(kvp_file_info[pool].fname, "we"); |
db425334 | 158 | if (!filep) { |
12e50c30 TH |
159 | syslog(LOG_ERR, "Failed to open file, pool: %d; error: %d %s", pool, |
160 | errno, strerror(errno)); | |
db425334 | 161 | kvp_release_lock(pool); |
6bb22fea | 162 | exit(EXIT_FAILURE); |
db425334 S |
163 | } |
164 | ||
77ce247a | 165 | fwrite(kvp_file_info[pool].records, sizeof(struct kvp_record), |
db425334 S |
166 | kvp_file_info[pool].num_records, filep); |
167 | ||
436473bc BH |
168 | if (ferror(filep) || fclose(filep)) { |
169 | kvp_release_lock(pool); | |
170 | syslog(LOG_ERR, "Failed to write file, pool: %d", pool); | |
171 | exit(EXIT_FAILURE); | |
172 | } | |
173 | ||
db425334 S |
174 | kvp_release_lock(pool); |
175 | } | |
176 | ||
adc80ae6 S |
177 | static void kvp_update_mem_state(int pool) |
178 | { | |
179 | FILE *filep; | |
180 | size_t records_read = 0; | |
181 | struct kvp_record *record = kvp_file_info[pool].records; | |
182 | struct kvp_record *readp; | |
183 | int num_blocks = kvp_file_info[pool].num_blocks; | |
184 | int alloc_unit = sizeof(struct kvp_record) * ENTRIES_PER_BLOCK; | |
185 | ||
186 | kvp_acquire_lock(pool); | |
187 | ||
8467fdbb | 188 | filep = fopen(kvp_file_info[pool].fname, "re"); |
adc80ae6 | 189 | if (!filep) { |
12e50c30 TH |
190 | syslog(LOG_ERR, "Failed to open file, pool: %d; error: %d %s", pool, |
191 | errno, strerror(errno)); | |
adc80ae6 | 192 | kvp_release_lock(pool); |
6bb22fea | 193 | exit(EXIT_FAILURE); |
adc80ae6 | 194 | } |
436473bc | 195 | for (;;) { |
adc80ae6 S |
196 | readp = &record[records_read]; |
197 | records_read += fread(readp, sizeof(struct kvp_record), | |
198 | ENTRIES_PER_BLOCK * num_blocks, | |
199 | filep); | |
200 | ||
436473bc BH |
201 | if (ferror(filep)) { |
202 | syslog(LOG_ERR, "Failed to read file, pool: %d", pool); | |
203 | exit(EXIT_FAILURE); | |
204 | } | |
205 | ||
adc80ae6 S |
206 | if (!feof(filep)) { |
207 | /* | |
208 | * We have more data to read. | |
209 | */ | |
210 | num_blocks++; | |
211 | record = realloc(record, alloc_unit * num_blocks); | |
212 | ||
213 | if (record == NULL) { | |
214 | syslog(LOG_ERR, "malloc failed"); | |
6bb22fea | 215 | exit(EXIT_FAILURE); |
adc80ae6 S |
216 | } |
217 | continue; | |
218 | } | |
219 | break; | |
220 | } | |
221 | ||
222 | kvp_file_info[pool].num_blocks = num_blocks; | |
223 | kvp_file_info[pool].records = record; | |
224 | kvp_file_info[pool].num_records = records_read; | |
225 | ||
d5ab4827 | 226 | fclose(filep); |
adc80ae6 S |
227 | kvp_release_lock(pool); |
228 | } | |
db425334 S |
229 | static int kvp_file_init(void) |
230 | { | |
00b83355 | 231 | int fd; |
db425334 S |
232 | FILE *filep; |
233 | size_t records_read; | |
d0cbc156 | 234 | char *fname; |
db425334 S |
235 | struct kvp_record *record; |
236 | struct kvp_record *readp; | |
237 | int num_blocks; | |
238 | int i; | |
239 | int alloc_unit = sizeof(struct kvp_record) * ENTRIES_PER_BLOCK; | |
240 | ||
40424f5f | 241 | if (access(KVP_CONFIG_LOC, F_OK)) { |
0bffd25c | 242 | if (mkdir(KVP_CONFIG_LOC, 0755 /* rwxr-xr-x */)) { |
12e50c30 TH |
243 | syslog(LOG_ERR, "Failed to create '%s'; error: %d %s", KVP_CONFIG_LOC, |
244 | errno, strerror(errno)); | |
6bb22fea | 245 | exit(EXIT_FAILURE); |
db425334 S |
246 | } |
247 | } | |
248 | ||
249 | for (i = 0; i < KVP_POOL_COUNT; i++) { | |
250 | fname = kvp_file_info[i].fname; | |
251 | records_read = 0; | |
252 | num_blocks = 1; | |
40424f5f | 253 | sprintf(fname, "%s/.kvp_pool_%d", KVP_CONFIG_LOC, i); |
8467fdbb | 254 | fd = open(fname, O_RDWR | O_CREAT | O_CLOEXEC, 0644 /* rw-r--r-- */); |
db425334 S |
255 | |
256 | if (fd == -1) | |
257 | return 1; | |
258 | ||
259 | ||
8467fdbb | 260 | filep = fopen(fname, "re"); |
fca59755 TH |
261 | if (!filep) { |
262 | close(fd); | |
db425334 | 263 | return 1; |
fca59755 | 264 | } |
db425334 S |
265 | |
266 | record = malloc(alloc_unit * num_blocks); | |
267 | if (record == NULL) { | |
268 | fclose(filep); | |
fca59755 | 269 | close(fd); |
db425334 S |
270 | return 1; |
271 | } | |
436473bc | 272 | for (;;) { |
db425334 S |
273 | readp = &record[records_read]; |
274 | records_read += fread(readp, sizeof(struct kvp_record), | |
275 | ENTRIES_PER_BLOCK, | |
276 | filep); | |
277 | ||
436473bc BH |
278 | if (ferror(filep)) { |
279 | syslog(LOG_ERR, "Failed to read file, pool: %d", | |
280 | i); | |
281 | exit(EXIT_FAILURE); | |
282 | } | |
283 | ||
db425334 S |
284 | if (!feof(filep)) { |
285 | /* | |
286 | * We have more data to read. | |
287 | */ | |
288 | num_blocks++; | |
289 | record = realloc(record, alloc_unit * | |
290 | num_blocks); | |
291 | if (record == NULL) { | |
292 | fclose(filep); | |
fca59755 | 293 | close(fd); |
db425334 S |
294 | return 1; |
295 | } | |
296 | continue; | |
297 | } | |
298 | break; | |
299 | } | |
300 | kvp_file_info[i].fd = fd; | |
301 | kvp_file_info[i].num_blocks = num_blocks; | |
302 | kvp_file_info[i].records = record; | |
303 | kvp_file_info[i].num_records = records_read; | |
304 | fclose(filep); | |
305 | ||
306 | } | |
307 | ||
308 | return 0; | |
309 | } | |
310 | ||
69258c05 | 311 | static int kvp_key_delete(int pool, const __u8 *key, int key_size) |
db425334 S |
312 | { |
313 | int i; | |
314 | int j, k; | |
adc80ae6 S |
315 | int num_records; |
316 | struct kvp_record *record; | |
317 | ||
318 | /* | |
319 | * First update the in-memory state. | |
320 | */ | |
321 | kvp_update_mem_state(pool); | |
322 | ||
323 | num_records = kvp_file_info[pool].num_records; | |
324 | record = kvp_file_info[pool].records; | |
db425334 S |
325 | |
326 | for (i = 0; i < num_records; i++) { | |
327 | if (memcmp(key, record[i].key, key_size)) | |
328 | continue; | |
329 | /* | |
330 | * Found a match; just move the remaining | |
331 | * entries up. | |
332 | */ | |
333 | if (i == num_records) { | |
334 | kvp_file_info[pool].num_records--; | |
335 | kvp_update_file(pool); | |
336 | return 0; | |
337 | } | |
338 | ||
339 | j = i; | |
340 | k = j + 1; | |
341 | for (; k < num_records; k++) { | |
342 | strcpy(record[j].key, record[k].key); | |
343 | strcpy(record[j].value, record[k].value); | |
344 | j++; | |
345 | } | |
346 | ||
347 | kvp_file_info[pool].num_records--; | |
348 | kvp_update_file(pool); | |
349 | return 0; | |
350 | } | |
351 | return 1; | |
352 | } | |
353 | ||
69258c05 VK |
354 | static int kvp_key_add_or_modify(int pool, const __u8 *key, int key_size, |
355 | const __u8 *value, int value_size) | |
db425334 S |
356 | { |
357 | int i; | |
adc80ae6 S |
358 | int num_records; |
359 | struct kvp_record *record; | |
360 | int num_blocks; | |
db425334 S |
361 | |
362 | if ((key_size > HV_KVP_EXCHANGE_MAX_KEY_SIZE) || | |
363 | (value_size > HV_KVP_EXCHANGE_MAX_VALUE_SIZE)) | |
364 | return 1; | |
365 | ||
adc80ae6 S |
366 | /* |
367 | * First update the in-memory state. | |
368 | */ | |
369 | kvp_update_mem_state(pool); | |
370 | ||
371 | num_records = kvp_file_info[pool].num_records; | |
372 | record = kvp_file_info[pool].records; | |
373 | num_blocks = kvp_file_info[pool].num_blocks; | |
374 | ||
db425334 S |
375 | for (i = 0; i < num_records; i++) { |
376 | if (memcmp(key, record[i].key, key_size)) | |
377 | continue; | |
378 | /* | |
379 | * Found a match; just update the value - | |
380 | * this is the modify case. | |
381 | */ | |
382 | memcpy(record[i].value, value, value_size); | |
383 | kvp_update_file(pool); | |
384 | return 0; | |
385 | } | |
386 | ||
387 | /* | |
388 | * Need to add a new entry; | |
389 | */ | |
390 | if (num_records == (ENTRIES_PER_BLOCK * num_blocks)) { | |
391 | /* Need to allocate a larger array for reg entries. */ | |
392 | record = realloc(record, sizeof(struct kvp_record) * | |
393 | ENTRIES_PER_BLOCK * (num_blocks + 1)); | |
394 | ||
395 | if (record == NULL) | |
396 | return 1; | |
397 | kvp_file_info[pool].num_blocks++; | |
398 | ||
399 | } | |
400 | memcpy(record[i].value, value, value_size); | |
401 | memcpy(record[i].key, key, key_size); | |
402 | kvp_file_info[pool].records = record; | |
403 | kvp_file_info[pool].num_records++; | |
404 | kvp_update_file(pool); | |
405 | return 0; | |
406 | } | |
407 | ||
69258c05 | 408 | static int kvp_get_value(int pool, const __u8 *key, int key_size, __u8 *value, |
db425334 S |
409 | int value_size) |
410 | { | |
411 | int i; | |
adc80ae6 S |
412 | int num_records; |
413 | struct kvp_record *record; | |
db425334 S |
414 | |
415 | if ((key_size > HV_KVP_EXCHANGE_MAX_KEY_SIZE) || | |
416 | (value_size > HV_KVP_EXCHANGE_MAX_VALUE_SIZE)) | |
417 | return 1; | |
418 | ||
adc80ae6 S |
419 | /* |
420 | * First update the in-memory state. | |
421 | */ | |
422 | kvp_update_mem_state(pool); | |
423 | ||
424 | num_records = kvp_file_info[pool].num_records; | |
425 | record = kvp_file_info[pool].records; | |
426 | ||
db425334 S |
427 | for (i = 0; i < num_records; i++) { |
428 | if (memcmp(key, record[i].key, key_size)) | |
429 | continue; | |
430 | /* | |
431 | * Found a match; just copy the value out. | |
432 | */ | |
433 | memcpy(value, record[i].value, value_size); | |
434 | return 0; | |
435 | } | |
436 | ||
437 | return 1; | |
438 | } | |
439 | ||
69258c05 VK |
440 | static int kvp_pool_enumerate(int pool, int index, __u8 *key, int key_size, |
441 | __u8 *value, int value_size) | |
adc80ae6 S |
442 | { |
443 | struct kvp_record *record; | |
444 | ||
445 | /* | |
446 | * First update our in-memory database. | |
447 | */ | |
448 | kvp_update_mem_state(pool); | |
449 | record = kvp_file_info[pool].records; | |
450 | ||
451 | if (index >= kvp_file_info[pool].num_records) { | |
b47a81dc | 452 | return 1; |
adc80ae6 S |
453 | } |
454 | ||
455 | memcpy(key, record[index].key, key_size); | |
456 | memcpy(value, record[index].value, value_size); | |
b47a81dc | 457 | return 0; |
adc80ae6 S |
458 | } |
459 | ||
460 | ||
cc04acf5 KS |
461 | void kvp_get_os_info(void) |
462 | { | |
463 | FILE *file; | |
7989f7d5 | 464 | char *p, buf[512]; |
cc04acf5 | 465 | |
7989f7d5 | 466 | uname(&uts_buf); |
f426a36c S |
467 | os_version = uts_buf.release; |
468 | os_build = strdup(uts_buf.release); | |
469 | ||
44c8b25f | 470 | os_name = uts_buf.sysname; |
064931d0 | 471 | processor_arch = uts_buf.machine; |
cc04acf5 | 472 | |
e54bbc64 S |
473 | /* |
474 | * The current windows host (win7) expects the build | |
475 | * string to be of the form: x.y.z | |
476 | * Strip additional information we may have. | |
477 | */ | |
f426a36c | 478 | p = strchr(os_version, '-'); |
e54bbc64 S |
479 | if (p) |
480 | *p = '\0'; | |
481 | ||
44c8b25f BH |
482 | /* |
483 | * Parse the /etc/os-release file if present: | |
484 | * http://www.freedesktop.org/software/systemd/man/os-release.html | |
485 | */ | |
486 | file = fopen("/etc/os-release", "r"); | |
487 | if (file != NULL) { | |
488 | while (fgets(buf, sizeof(buf), file)) { | |
489 | char *value, *q; | |
490 | ||
491 | /* Ignore comments */ | |
492 | if (buf[0] == '#') | |
493 | continue; | |
494 | ||
495 | /* Split into name=value */ | |
496 | p = strchr(buf, '='); | |
497 | if (!p) | |
498 | continue; | |
499 | *p++ = 0; | |
500 | ||
501 | /* Remove quotes and newline; un-escape */ | |
502 | value = p; | |
503 | q = p; | |
504 | while (*p) { | |
505 | if (*p == '\\') { | |
506 | ++p; | |
507 | if (!*p) | |
508 | break; | |
509 | *q++ = *p++; | |
510 | } else if (*p == '\'' || *p == '"' || | |
511 | *p == '\n') { | |
512 | ++p; | |
513 | } else { | |
514 | *q++ = *p++; | |
515 | } | |
516 | } | |
517 | *q = 0; | |
518 | ||
519 | if (!strcmp(buf, "NAME")) { | |
520 | p = strdup(value); | |
521 | if (!p) | |
522 | break; | |
523 | os_name = p; | |
524 | } else if (!strcmp(buf, "VERSION_ID")) { | |
525 | p = strdup(value); | |
526 | if (!p) | |
527 | break; | |
528 | os_major = p; | |
529 | } | |
530 | } | |
531 | fclose(file); | |
532 | return; | |
533 | } | |
534 | ||
535 | /* Fallback for older RH/SUSE releases */ | |
cc04acf5 KS |
536 | file = fopen("/etc/SuSE-release", "r"); |
537 | if (file != NULL) | |
538 | goto kvp_osinfo_found; | |
539 | file = fopen("/etc/redhat-release", "r"); | |
540 | if (file != NULL) | |
541 | goto kvp_osinfo_found; | |
cc04acf5 KS |
542 | |
543 | /* | |
544 | * We don't have information about the os. | |
545 | */ | |
cc04acf5 KS |
546 | return; |
547 | ||
548 | kvp_osinfo_found: | |
7989f7d5 OH |
549 | /* up to three lines */ |
550 | p = fgets(buf, sizeof(buf), file); | |
551 | if (p) { | |
552 | p = strchr(buf, '\n'); | |
553 | if (p) | |
554 | *p = '\0'; | |
555 | p = strdup(buf); | |
556 | if (!p) | |
557 | goto done; | |
558 | os_name = p; | |
559 | ||
560 | /* second line */ | |
561 | p = fgets(buf, sizeof(buf), file); | |
562 | if (p) { | |
563 | p = strchr(buf, '\n'); | |
564 | if (p) | |
565 | *p = '\0'; | |
566 | p = strdup(buf); | |
567 | if (!p) | |
568 | goto done; | |
569 | os_major = p; | |
570 | ||
571 | /* third line */ | |
572 | p = fgets(buf, sizeof(buf), file); | |
573 | if (p) { | |
574 | p = strchr(buf, '\n'); | |
575 | if (p) | |
576 | *p = '\0'; | |
577 | p = strdup(buf); | |
578 | if (p) | |
579 | os_minor = p; | |
580 | } | |
581 | } | |
582 | } | |
583 | ||
584 | done: | |
cc04acf5 KS |
585 | fclose(file); |
586 | return; | |
587 | } | |
588 | ||
32061b4d S |
589 | |
590 | ||
591 | /* | |
592 | * Retrieve an interface name corresponding to the specified guid. | |
593 | * If there is a match, the function returns a pointer | |
594 | * to the interface name and if not, a NULL is returned. | |
595 | * If a match is found, the caller is responsible for | |
596 | * freeing the memory. | |
597 | */ | |
598 | ||
599 | static char *kvp_get_if_name(char *guid) | |
600 | { | |
601 | DIR *dir; | |
602 | struct dirent *entry; | |
603 | FILE *file; | |
604 | char *p, *q, *x; | |
605 | char *if_name = NULL; | |
606 | char buf[256]; | |
607 | char *kvp_net_dir = "/sys/class/net/"; | |
608 | char dev_id[256]; | |
609 | ||
610 | dir = opendir(kvp_net_dir); | |
611 | if (dir == NULL) | |
612 | return NULL; | |
613 | ||
614 | snprintf(dev_id, sizeof(dev_id), "%s", kvp_net_dir); | |
615 | q = dev_id + strlen(kvp_net_dir); | |
616 | ||
617 | while ((entry = readdir(dir)) != NULL) { | |
618 | /* | |
619 | * Set the state for the next pass. | |
620 | */ | |
621 | *q = '\0'; | |
622 | strcat(dev_id, entry->d_name); | |
623 | strcat(dev_id, "/device/device_id"); | |
624 | ||
625 | file = fopen(dev_id, "r"); | |
626 | if (file == NULL) | |
627 | continue; | |
628 | ||
629 | p = fgets(buf, sizeof(buf), file); | |
630 | if (p) { | |
631 | x = strchr(p, '\n'); | |
632 | if (x) | |
633 | *x = '\0'; | |
634 | ||
635 | if (!strcmp(p, guid)) { | |
636 | /* | |
637 | * Found the guid match; return the interface | |
638 | * name. The caller will free the memory. | |
639 | */ | |
640 | if_name = strdup(entry->d_name); | |
641 | fclose(file); | |
642 | break; | |
643 | } | |
644 | } | |
645 | fclose(file); | |
646 | } | |
647 | ||
648 | closedir(dir); | |
649 | return if_name; | |
650 | } | |
651 | ||
652 | /* | |
653 | * Retrieve the MAC address given the interface name. | |
654 | */ | |
655 | ||
656 | static char *kvp_if_name_to_mac(char *if_name) | |
657 | { | |
658 | FILE *file; | |
659 | char *p, *x; | |
660 | char buf[256]; | |
661 | char addr_file[256]; | |
69258c05 | 662 | unsigned int i; |
32061b4d S |
663 | char *mac_addr = NULL; |
664 | ||
665 | snprintf(addr_file, sizeof(addr_file), "%s%s%s", "/sys/class/net/", | |
666 | if_name, "/address"); | |
667 | ||
668 | file = fopen(addr_file, "r"); | |
669 | if (file == NULL) | |
670 | return NULL; | |
671 | ||
672 | p = fgets(buf, sizeof(buf), file); | |
673 | if (p) { | |
674 | x = strchr(p, '\n'); | |
675 | if (x) | |
676 | *x = '\0'; | |
677 | for (i = 0; i < strlen(p); i++) | |
678 | p[i] = toupper(p[i]); | |
679 | mac_addr = strdup(p); | |
680 | } | |
681 | ||
682 | fclose(file); | |
683 | return mac_addr; | |
684 | } | |
685 | ||
686 | ||
16e87100 S |
687 | /* |
688 | * Retrieve the interface name given tha MAC address. | |
689 | */ | |
690 | ||
691 | static char *kvp_mac_to_if_name(char *mac) | |
692 | { | |
693 | DIR *dir; | |
694 | struct dirent *entry; | |
695 | FILE *file; | |
696 | char *p, *q, *x; | |
697 | char *if_name = NULL; | |
698 | char buf[256]; | |
699 | char *kvp_net_dir = "/sys/class/net/"; | |
700 | char dev_id[256]; | |
69258c05 | 701 | unsigned int i; |
16e87100 S |
702 | |
703 | dir = opendir(kvp_net_dir); | |
704 | if (dir == NULL) | |
705 | return NULL; | |
706 | ||
707 | snprintf(dev_id, sizeof(dev_id), kvp_net_dir); | |
708 | q = dev_id + strlen(kvp_net_dir); | |
709 | ||
710 | while ((entry = readdir(dir)) != NULL) { | |
711 | /* | |
712 | * Set the state for the next pass. | |
713 | */ | |
714 | *q = '\0'; | |
715 | ||
716 | strcat(dev_id, entry->d_name); | |
717 | strcat(dev_id, "/address"); | |
718 | ||
719 | file = fopen(dev_id, "r"); | |
720 | if (file == NULL) | |
721 | continue; | |
722 | ||
723 | p = fgets(buf, sizeof(buf), file); | |
724 | if (p) { | |
725 | x = strchr(p, '\n'); | |
726 | if (x) | |
727 | *x = '\0'; | |
728 | ||
729 | for (i = 0; i < strlen(p); i++) | |
730 | p[i] = toupper(p[i]); | |
731 | ||
732 | if (!strcmp(p, mac)) { | |
733 | /* | |
734 | * Found the MAC match; return the interface | |
735 | * name. The caller will free the memory. | |
736 | */ | |
737 | if_name = strdup(entry->d_name); | |
738 | fclose(file); | |
739 | break; | |
740 | } | |
741 | } | |
742 | fclose(file); | |
743 | } | |
744 | ||
745 | closedir(dir); | |
746 | return if_name; | |
747 | } | |
748 | ||
749 | ||
4a52c4af | 750 | static void kvp_process_ipconfig_file(char *cmd, |
69258c05 | 751 | char *config_buf, unsigned int len, |
4a52c4af S |
752 | int element_size, int offset) |
753 | { | |
754 | char buf[256]; | |
755 | char *p; | |
756 | char *x; | |
757 | FILE *file; | |
758 | ||
759 | /* | |
760 | * First execute the command. | |
761 | */ | |
762 | file = popen(cmd, "r"); | |
763 | if (file == NULL) | |
764 | return; | |
765 | ||
766 | if (offset == 0) | |
767 | memset(config_buf, 0, len); | |
768 | while ((p = fgets(buf, sizeof(buf), file)) != NULL) { | |
69258c05 | 769 | if (len < strlen(config_buf) + element_size + 1) |
4a52c4af S |
770 | break; |
771 | ||
772 | x = strchr(p, '\n'); | |
f14e600a TH |
773 | if (x) |
774 | *x = '\0'; | |
775 | ||
4a52c4af S |
776 | strcat(config_buf, p); |
777 | strcat(config_buf, ";"); | |
778 | } | |
779 | pclose(file); | |
780 | } | |
781 | ||
782 | static void kvp_get_ipconfig_info(char *if_name, | |
783 | struct hv_kvp_ipaddr_value *buffer) | |
784 | { | |
785 | char cmd[512]; | |
c0503725 S |
786 | char dhcp_info[128]; |
787 | char *p; | |
788 | FILE *file; | |
4a52c4af S |
789 | |
790 | /* | |
791 | * Get the address of default gateway (ipv4). | |
792 | */ | |
793 | sprintf(cmd, "%s %s", "ip route show dev", if_name); | |
794 | strcat(cmd, " | awk '/default/ {print $3 }'"); | |
795 | ||
796 | /* | |
797 | * Execute the command to gather gateway info. | |
798 | */ | |
799 | kvp_process_ipconfig_file(cmd, (char *)buffer->gate_way, | |
800 | (MAX_GATEWAY_SIZE * 2), INET_ADDRSTRLEN, 0); | |
801 | ||
802 | /* | |
803 | * Get the address of default gateway (ipv6). | |
804 | */ | |
805 | sprintf(cmd, "%s %s", "ip -f inet6 route show dev", if_name); | |
806 | strcat(cmd, " | awk '/default/ {print $3 }'"); | |
807 | ||
808 | /* | |
809 | * Execute the command to gather gateway info (ipv6). | |
810 | */ | |
811 | kvp_process_ipconfig_file(cmd, (char *)buffer->gate_way, | |
812 | (MAX_GATEWAY_SIZE * 2), INET6_ADDRSTRLEN, 1); | |
813 | ||
96929887 S |
814 | |
815 | /* | |
816 | * Gather the DNS state. | |
817 | * Since there is no standard way to get this information | |
818 | * across various distributions of interest; we just invoke | |
819 | * an external script that needs to be ported across distros | |
820 | * of interest. | |
821 | * | |
822 | * Following is the expected format of the information from the script: | |
823 | * | |
824 | * ipaddr1 (nameserver1) | |
825 | * ipaddr2 (nameserver2) | |
826 | * . | |
827 | * . | |
828 | */ | |
829 | ||
830 | sprintf(cmd, "%s", "hv_get_dns_info"); | |
831 | ||
832 | /* | |
833 | * Execute the command to gather DNS info. | |
834 | */ | |
835 | kvp_process_ipconfig_file(cmd, (char *)buffer->dns_addr, | |
836 | (MAX_IP_ADDR_SIZE * 2), INET_ADDRSTRLEN, 0); | |
c0503725 S |
837 | |
838 | /* | |
839 | * Gather the DHCP state. | |
840 | * We will gather this state by invoking an external script. | |
841 | * The parameter to the script is the interface name. | |
842 | * Here is the expected output: | |
843 | * | |
844 | * Enabled: DHCP enabled. | |
845 | */ | |
846 | ||
847 | sprintf(cmd, "%s %s", "hv_get_dhcp_info", if_name); | |
848 | ||
849 | file = popen(cmd, "r"); | |
850 | if (file == NULL) | |
851 | return; | |
852 | ||
853 | p = fgets(dhcp_info, sizeof(dhcp_info), file); | |
854 | if (p == NULL) { | |
855 | pclose(file); | |
856 | return; | |
857 | } | |
858 | ||
859 | if (!strncmp(p, "Enabled", 7)) | |
860 | buffer->dhcp_enabled = 1; | |
861 | else | |
862 | buffer->dhcp_enabled = 0; | |
863 | ||
864 | pclose(file); | |
4a52c4af S |
865 | } |
866 | ||
867 | ||
6a60a6a8 S |
868 | static unsigned int hweight32(unsigned int *w) |
869 | { | |
870 | unsigned int res = *w - ((*w >> 1) & 0x55555555); | |
871 | res = (res & 0x33333333) + ((res >> 2) & 0x33333333); | |
872 | res = (res + (res >> 4)) & 0x0F0F0F0F; | |
873 | res = res + (res >> 8); | |
874 | return (res + (res >> 16)) & 0x000000FF; | |
875 | } | |
876 | ||
af733015 S |
877 | static int kvp_process_ip_address(void *addrp, |
878 | int family, char *buffer, | |
879 | int length, int *offset) | |
880 | { | |
881 | struct sockaddr_in *addr; | |
882 | struct sockaddr_in6 *addr6; | |
883 | int addr_length; | |
884 | char tmp[50]; | |
885 | const char *str; | |
886 | ||
887 | if (family == AF_INET) { | |
888 | addr = (struct sockaddr_in *)addrp; | |
889 | str = inet_ntop(family, &addr->sin_addr, tmp, 50); | |
890 | addr_length = INET_ADDRSTRLEN; | |
891 | } else { | |
892 | addr6 = (struct sockaddr_in6 *)addrp; | |
893 | str = inet_ntop(family, &addr6->sin6_addr.s6_addr, tmp, 50); | |
894 | addr_length = INET6_ADDRSTRLEN; | |
895 | } | |
896 | ||
3321e738 | 897 | if ((length - *offset) < addr_length + 2) |
16e87100 | 898 | return HV_E_FAIL; |
af733015 S |
899 | if (str == NULL) { |
900 | strcpy(buffer, "inet_ntop failed\n"); | |
16e87100 | 901 | return HV_E_FAIL; |
af733015 S |
902 | } |
903 | if (*offset == 0) | |
904 | strcpy(buffer, tmp); | |
3321e738 S |
905 | else { |
906 | strcat(buffer, ";"); | |
af733015 | 907 | strcat(buffer, tmp); |
3321e738 | 908 | } |
af733015 S |
909 | |
910 | *offset += strlen(str) + 1; | |
3321e738 | 911 | |
af733015 S |
912 | return 0; |
913 | } | |
914 | ||
cc04acf5 | 915 | static int |
4a3b97e5 | 916 | kvp_get_ip_info(int family, char *if_name, int op, |
69258c05 | 917 | void *out_buffer, unsigned int length) |
cc04acf5 KS |
918 | { |
919 | struct ifaddrs *ifap; | |
920 | struct ifaddrs *curp; | |
cc04acf5 | 921 | int offset = 0; |
04405784 | 922 | int sn_offset = 0; |
cc04acf5 | 923 | int error = 0; |
0ecaa198 S |
924 | char *buffer; |
925 | struct hv_kvp_ipaddr_value *ip_buffer; | |
6a60a6a8 S |
926 | char cidr_mask[5]; /* /xyz */ |
927 | int weight; | |
928 | int i; | |
929 | unsigned int *w; | |
930 | char *sn_str; | |
931 | struct sockaddr_in6 *addr6; | |
0ecaa198 S |
932 | |
933 | if (op == KVP_OP_ENUMERATE) { | |
934 | buffer = out_buffer; | |
935 | } else { | |
936 | ip_buffer = out_buffer; | |
937 | buffer = (char *)ip_buffer->ip_addr; | |
938 | ip_buffer->addr_family = 0; | |
939 | } | |
cc04acf5 KS |
940 | /* |
941 | * On entry into this function, the buffer is capable of holding the | |
0ecaa198 | 942 | * maximum key value. |
cc04acf5 KS |
943 | */ |
944 | ||
945 | if (getifaddrs(&ifap)) { | |
946 | strcpy(buffer, "getifaddrs failed\n"); | |
16e87100 | 947 | return HV_E_FAIL; |
cc04acf5 KS |
948 | } |
949 | ||
950 | curp = ifap; | |
951 | while (curp != NULL) { | |
0ecaa198 S |
952 | if (curp->ifa_addr == NULL) { |
953 | curp = curp->ifa_next; | |
954 | continue; | |
955 | } | |
cc04acf5 | 956 | |
0ecaa198 S |
957 | if ((if_name != NULL) && |
958 | (strncmp(curp->ifa_name, if_name, strlen(if_name)))) { | |
959 | /* | |
960 | * We want info about a specific interface; | |
961 | * just continue. | |
962 | */ | |
963 | curp = curp->ifa_next; | |
964 | continue; | |
965 | } | |
cc04acf5 | 966 | |
0ecaa198 S |
967 | /* |
968 | * We only support two address families: AF_INET and AF_INET6. | |
969 | * If a family value of 0 is specified, we collect both | |
970 | * supported address families; if not we gather info on | |
971 | * the specified address family. | |
972 | */ | |
3321e738 S |
973 | if ((((family != 0) && |
974 | (curp->ifa_addr->sa_family != family))) || | |
975 | (curp->ifa_flags & IFF_LOOPBACK)) { | |
0ecaa198 S |
976 | curp = curp->ifa_next; |
977 | continue; | |
978 | } | |
979 | if ((curp->ifa_addr->sa_family != AF_INET) && | |
980 | (curp->ifa_addr->sa_family != AF_INET6)) { | |
981 | curp = curp->ifa_next; | |
982 | continue; | |
983 | } | |
984 | ||
0d5b6b19 S |
985 | if (op == KVP_OP_GET_IP_INFO) { |
986 | /* | |
987 | * Gather info other than the IP address. | |
988 | * IP address info will be gathered later. | |
989 | */ | |
04405784 | 990 | if (curp->ifa_addr->sa_family == AF_INET) { |
0d5b6b19 | 991 | ip_buffer->addr_family |= ADDR_FAMILY_IPV4; |
04405784 S |
992 | /* |
993 | * Get subnet info. | |
994 | */ | |
995 | error = kvp_process_ip_address( | |
996 | curp->ifa_netmask, | |
997 | AF_INET, | |
998 | (char *) | |
999 | ip_buffer->sub_net, | |
1000 | length, | |
1001 | &sn_offset); | |
1002 | if (error) | |
1003 | goto gather_ipaddr; | |
1004 | } else { | |
0d5b6b19 | 1005 | ip_buffer->addr_family |= ADDR_FAMILY_IPV6; |
6a60a6a8 | 1006 | |
04405784 | 1007 | /* |
6a60a6a8 | 1008 | * Get subnet info in CIDR format. |
04405784 | 1009 | */ |
6a60a6a8 S |
1010 | weight = 0; |
1011 | sn_str = (char *)ip_buffer->sub_net; | |
1012 | addr6 = (struct sockaddr_in6 *) | |
1013 | curp->ifa_netmask; | |
1014 | w = addr6->sin6_addr.s6_addr32; | |
1015 | ||
1016 | for (i = 0; i < 4; i++) | |
1017 | weight += hweight32(&w[i]); | |
1018 | ||
1019 | sprintf(cidr_mask, "/%d", weight); | |
69258c05 | 1020 | if (length < sn_offset + strlen(cidr_mask) + 1) |
04405784 | 1021 | goto gather_ipaddr; |
6a60a6a8 S |
1022 | |
1023 | if (sn_offset == 0) | |
1024 | strcpy(sn_str, cidr_mask); | |
ed4bb974 S |
1025 | else { |
1026 | strcat((char *)ip_buffer->sub_net, ";"); | |
6a60a6a8 | 1027 | strcat(sn_str, cidr_mask); |
ed4bb974 | 1028 | } |
6a60a6a8 | 1029 | sn_offset += strlen(sn_str) + 1; |
04405784 | 1030 | } |
4a52c4af S |
1031 | |
1032 | /* | |
1033 | * Collect other ip related configuration info. | |
1034 | */ | |
1035 | ||
1036 | kvp_get_ipconfig_info(if_name, ip_buffer); | |
0d5b6b19 S |
1037 | } |
1038 | ||
04405784 | 1039 | gather_ipaddr: |
af733015 S |
1040 | error = kvp_process_ip_address(curp->ifa_addr, |
1041 | curp->ifa_addr->sa_family, | |
1042 | buffer, | |
1043 | length, &offset); | |
1044 | if (error) | |
1045 | goto getaddr_done; | |
0ecaa198 | 1046 | |
cc04acf5 KS |
1047 | curp = curp->ifa_next; |
1048 | } | |
1049 | ||
1050 | getaddr_done: | |
1051 | freeifaddrs(ifap); | |
1052 | return error; | |
1053 | } | |
1054 | ||
1055 | ||
32061b4d S |
1056 | static int expand_ipv6(char *addr, int type) |
1057 | { | |
1058 | int ret; | |
1059 | struct in6_addr v6_addr; | |
1060 | ||
1061 | ret = inet_pton(AF_INET6, addr, &v6_addr); | |
1062 | ||
1063 | if (ret != 1) { | |
1064 | if (type == NETMASK) | |
1065 | return 1; | |
1066 | return 0; | |
1067 | } | |
1068 | ||
1069 | sprintf(addr, "%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:" | |
1070 | "%02x%02x:%02x%02x:%02x%02x", | |
1071 | (int)v6_addr.s6_addr[0], (int)v6_addr.s6_addr[1], | |
1072 | (int)v6_addr.s6_addr[2], (int)v6_addr.s6_addr[3], | |
1073 | (int)v6_addr.s6_addr[4], (int)v6_addr.s6_addr[5], | |
1074 | (int)v6_addr.s6_addr[6], (int)v6_addr.s6_addr[7], | |
1075 | (int)v6_addr.s6_addr[8], (int)v6_addr.s6_addr[9], | |
1076 | (int)v6_addr.s6_addr[10], (int)v6_addr.s6_addr[11], | |
1077 | (int)v6_addr.s6_addr[12], (int)v6_addr.s6_addr[13], | |
1078 | (int)v6_addr.s6_addr[14], (int)v6_addr.s6_addr[15]); | |
1079 | ||
1080 | return 1; | |
1081 | ||
1082 | } | |
1083 | ||
1084 | static int is_ipv4(char *addr) | |
1085 | { | |
1086 | int ret; | |
1087 | struct in_addr ipv4_addr; | |
1088 | ||
1089 | ret = inet_pton(AF_INET, addr, &ipv4_addr); | |
1090 | ||
1091 | if (ret == 1) | |
1092 | return 1; | |
1093 | return 0; | |
1094 | } | |
1095 | ||
1096 | static int parse_ip_val_buffer(char *in_buf, int *offset, | |
1097 | char *out_buf, int out_len) | |
1098 | { | |
1099 | char *x; | |
1100 | char *start; | |
1101 | ||
1102 | /* | |
1103 | * in_buf has sequence of characters that are seperated by | |
1104 | * the character ';'. The last sequence does not have the | |
1105 | * terminating ";" character. | |
1106 | */ | |
1107 | start = in_buf + *offset; | |
1108 | ||
1109 | x = strchr(start, ';'); | |
1110 | if (x) | |
1111 | *x = 0; | |
1112 | else | |
1113 | x = start + strlen(start); | |
1114 | ||
1115 | if (strlen(start) != 0) { | |
1116 | int i = 0; | |
1117 | /* | |
1118 | * Get rid of leading spaces. | |
1119 | */ | |
1120 | while (start[i] == ' ') | |
1121 | i++; | |
1122 | ||
1123 | if ((x - start) <= out_len) { | |
1124 | strcpy(out_buf, (start + i)); | |
1125 | *offset += (x - start) + 1; | |
1126 | return 1; | |
1127 | } | |
1128 | } | |
1129 | return 0; | |
1130 | } | |
1131 | ||
1132 | static int kvp_write_file(FILE *f, char *s1, char *s2, char *s3) | |
1133 | { | |
1134 | int ret; | |
1135 | ||
1136 | ret = fprintf(f, "%s%s%s%s\n", s1, s2, "=", s3); | |
1137 | ||
1138 | if (ret < 0) | |
1139 | return HV_E_FAIL; | |
1140 | ||
1141 | return 0; | |
1142 | } | |
1143 | ||
1144 | ||
1145 | static int process_ip_string(FILE *f, char *ip_string, int type) | |
1146 | { | |
1147 | int error = 0; | |
1148 | char addr[INET6_ADDRSTRLEN]; | |
1149 | int i = 0; | |
1150 | int j = 0; | |
1151 | char str[256]; | |
1152 | char sub_str[10]; | |
1153 | int offset = 0; | |
1154 | ||
1155 | memset(addr, 0, sizeof(addr)); | |
1156 | ||
1157 | while (parse_ip_val_buffer(ip_string, &offset, addr, | |
1158 | (MAX_IP_ADDR_SIZE * 2))) { | |
1159 | ||
1160 | sub_str[0] = 0; | |
1161 | if (is_ipv4(addr)) { | |
1162 | switch (type) { | |
1163 | case IPADDR: | |
1164 | snprintf(str, sizeof(str), "%s", "IPADDR"); | |
1165 | break; | |
1166 | case NETMASK: | |
1167 | snprintf(str, sizeof(str), "%s", "NETMASK"); | |
1168 | break; | |
1169 | case GATEWAY: | |
1170 | snprintf(str, sizeof(str), "%s", "GATEWAY"); | |
1171 | break; | |
1172 | case DNS: | |
1173 | snprintf(str, sizeof(str), "%s", "DNS"); | |
1174 | break; | |
1175 | } | |
0783d72f TH |
1176 | |
1177 | if (type == DNS) { | |
32061b4d | 1178 | snprintf(sub_str, sizeof(sub_str), "%d", ++i); |
0783d72f TH |
1179 | } else if (type == GATEWAY && i == 0) { |
1180 | ++i; | |
1181 | } else { | |
1182 | snprintf(sub_str, sizeof(sub_str), "%d", i++); | |
32061b4d S |
1183 | } |
1184 | ||
1185 | ||
1186 | } else if (expand_ipv6(addr, type)) { | |
1187 | switch (type) { | |
1188 | case IPADDR: | |
1189 | snprintf(str, sizeof(str), "%s", "IPV6ADDR"); | |
1190 | break; | |
1191 | case NETMASK: | |
1192 | snprintf(str, sizeof(str), "%s", "IPV6NETMASK"); | |
1193 | break; | |
1194 | case GATEWAY: | |
1195 | snprintf(str, sizeof(str), "%s", | |
1196 | "IPV6_DEFAULTGW"); | |
1197 | break; | |
1198 | case DNS: | |
1199 | snprintf(str, sizeof(str), "%s", "DNS"); | |
1200 | break; | |
1201 | } | |
0783d72f TH |
1202 | |
1203 | if (type == DNS) { | |
1204 | snprintf(sub_str, sizeof(sub_str), "%d", ++i); | |
1205 | } else if (j == 0) { | |
1206 | ++j; | |
1207 | } else { | |
1208 | snprintf(sub_str, sizeof(sub_str), "_%d", j++); | |
32061b4d S |
1209 | } |
1210 | } else { | |
1211 | return HV_INVALIDARG; | |
1212 | } | |
1213 | ||
1214 | error = kvp_write_file(f, str, sub_str, addr); | |
1215 | if (error) | |
1216 | return error; | |
1217 | memset(addr, 0, sizeof(addr)); | |
1218 | } | |
1219 | ||
1220 | return 0; | |
1221 | } | |
1222 | ||
1223 | static int kvp_set_ip_info(char *if_name, struct hv_kvp_ipaddr_value *new_val) | |
1224 | { | |
1225 | int error = 0; | |
1226 | char if_file[128]; | |
1227 | FILE *file; | |
1228 | char cmd[512]; | |
1229 | char *mac_addr; | |
1230 | ||
1231 | /* | |
1232 | * Set the configuration for the specified interface with | |
1233 | * the information provided. Since there is no standard | |
1234 | * way to configure an interface, we will have an external | |
1235 | * script that does the job of configuring the interface and | |
1236 | * flushing the configuration. | |
1237 | * | |
1238 | * The parameters passed to this external script are: | |
1239 | * 1. A configuration file that has the specified configuration. | |
1240 | * | |
1241 | * We will embed the name of the interface in the configuration | |
1242 | * file: ifcfg-ethx (where ethx is the interface name). | |
1243 | * | |
1244 | * The information provided here may be more than what is needed | |
1245 | * in a given distro to configure the interface and so are free | |
1246 | * ignore information that may not be relevant. | |
1247 | * | |
1248 | * Here is the format of the ip configuration file: | |
1249 | * | |
1250 | * HWADDR=macaddr | |
0783d72f TH |
1251 | * DEVICE=interface name |
1252 | * BOOTPROTO=<protocol> (where <protocol> is "dhcp" if DHCP is configured | |
1253 | * or "none" if no boot-time protocol should be used) | |
32061b4d | 1254 | * |
0783d72f TH |
1255 | * IPADDR0=ipaddr1 |
1256 | * IPADDR1=ipaddr2 | |
1257 | * IPADDRx=ipaddry (where y = x + 1) | |
32061b4d | 1258 | * |
0783d72f TH |
1259 | * NETMASK0=netmask1 |
1260 | * NETMASKx=netmasky (where y = x + 1) | |
32061b4d S |
1261 | * |
1262 | * GATEWAY=ipaddr1 | |
0783d72f | 1263 | * GATEWAYx=ipaddry (where y = x + 1) |
32061b4d S |
1264 | * |
1265 | * DNSx=ipaddrx (where first DNS address is tagged as DNS1 etc) | |
1266 | * | |
1267 | * IPV6 addresses will be tagged as IPV6ADDR, IPV6 gateway will be | |
1268 | * tagged as IPV6_DEFAULTGW and IPV6 NETMASK will be tagged as | |
1269 | * IPV6NETMASK. | |
1270 | * | |
1271 | * The host can specify multiple ipv4 and ipv6 addresses to be | |
1272 | * configured for the interface. Furthermore, the configuration | |
1273 | * needs to be persistent. A subsequent GET call on the interface | |
1274 | * is expected to return the configuration that is set via the SET | |
1275 | * call. | |
1276 | */ | |
1277 | ||
1278 | snprintf(if_file, sizeof(if_file), "%s%s%s", KVP_CONFIG_LOC, | |
40424f5f | 1279 | "/ifcfg-", if_name); |
32061b4d S |
1280 | |
1281 | file = fopen(if_file, "w"); | |
1282 | ||
1283 | if (file == NULL) { | |
12e50c30 TH |
1284 | syslog(LOG_ERR, "Failed to open config file; error: %d %s", |
1285 | errno, strerror(errno)); | |
32061b4d S |
1286 | return HV_E_FAIL; |
1287 | } | |
1288 | ||
1289 | /* | |
1290 | * First write out the MAC address. | |
1291 | */ | |
1292 | ||
1293 | mac_addr = kvp_if_name_to_mac(if_name); | |
1294 | if (mac_addr == NULL) { | |
1295 | error = HV_E_FAIL; | |
1296 | goto setval_error; | |
1297 | } | |
1298 | ||
1299 | error = kvp_write_file(file, "HWADDR", "", mac_addr); | |
57969af0 | 1300 | free(mac_addr); |
32061b4d S |
1301 | if (error) |
1302 | goto setval_error; | |
1303 | ||
0783d72f | 1304 | error = kvp_write_file(file, "DEVICE", "", if_name); |
32061b4d S |
1305 | if (error) |
1306 | goto setval_error; | |
1307 | ||
787d6182 DC |
1308 | /* |
1309 | * The dhcp_enabled flag is only for IPv4. In the case the host only | |
1310 | * injects an IPv6 address, the flag is true, but we still need to | |
1311 | * proceed to parse and pass the IPv6 information to the | |
1312 | * disto-specific script hv_set_ifconfig. | |
1313 | */ | |
32061b4d | 1314 | if (new_val->dhcp_enabled) { |
0783d72f | 1315 | error = kvp_write_file(file, "BOOTPROTO", "", "dhcp"); |
32061b4d S |
1316 | if (error) |
1317 | goto setval_error; | |
1318 | ||
0783d72f TH |
1319 | } else { |
1320 | error = kvp_write_file(file, "BOOTPROTO", "", "none"); | |
1321 | if (error) | |
1322 | goto setval_error; | |
32061b4d S |
1323 | } |
1324 | ||
1325 | /* | |
1326 | * Write the configuration for ipaddress, netmask, gateway and | |
1327 | * name servers. | |
1328 | */ | |
1329 | ||
1330 | error = process_ip_string(file, (char *)new_val->ip_addr, IPADDR); | |
1331 | if (error) | |
1332 | goto setval_error; | |
1333 | ||
1334 | error = process_ip_string(file, (char *)new_val->sub_net, NETMASK); | |
1335 | if (error) | |
1336 | goto setval_error; | |
1337 | ||
1338 | error = process_ip_string(file, (char *)new_val->gate_way, GATEWAY); | |
1339 | if (error) | |
1340 | goto setval_error; | |
1341 | ||
1342 | error = process_ip_string(file, (char *)new_val->dns_addr, DNS); | |
1343 | if (error) | |
1344 | goto setval_error; | |
1345 | ||
32061b4d S |
1346 | fclose(file); |
1347 | ||
1348 | /* | |
1349 | * Now that we have populated the configuration file, | |
1350 | * invoke the external script to do its magic. | |
1351 | */ | |
1352 | ||
1353 | snprintf(cmd, sizeof(cmd), "%s %s", "hv_set_ifconfig", if_file); | |
d3b688c6 OH |
1354 | if (system(cmd)) { |
1355 | syslog(LOG_ERR, "Failed to execute cmd '%s'; error: %d %s", | |
1356 | cmd, errno, strerror(errno)); | |
1357 | return HV_E_FAIL; | |
1358 | } | |
32061b4d S |
1359 | return 0; |
1360 | ||
1361 | setval_error: | |
1362 | syslog(LOG_ERR, "Failed to write config file"); | |
32061b4d S |
1363 | fclose(file); |
1364 | return error; | |
1365 | } | |
1366 | ||
1367 | ||
58125210 | 1368 | static void |
cc04acf5 KS |
1369 | kvp_get_domain_name(char *buffer, int length) |
1370 | { | |
1371 | struct addrinfo hints, *info ; | |
cc04acf5 KS |
1372 | int error = 0; |
1373 | ||
5be528c2 | 1374 | gethostname(buffer, length); |
cc04acf5 KS |
1375 | memset(&hints, 0, sizeof(hints)); |
1376 | hints.ai_family = AF_INET; /*Get only ipv4 addrinfo. */ | |
1377 | hints.ai_socktype = SOCK_STREAM; | |
1378 | hints.ai_flags = AI_CANONNAME; | |
1379 | ||
5be528c2 | 1380 | error = getaddrinfo(buffer, NULL, &hints, &info); |
cc04acf5 | 1381 | if (error != 0) { |
58125210 OH |
1382 | snprintf(buffer, length, "getaddrinfo failed: 0x%x %s", |
1383 | error, gai_strerror(error)); | |
1384 | return; | |
cc04acf5 | 1385 | } |
58125210 | 1386 | snprintf(buffer, length, "%s", info->ai_canonname); |
cc04acf5 | 1387 | freeaddrinfo(info); |
cc04acf5 KS |
1388 | } |
1389 | ||
1390 | static int | |
1391 | netlink_send(int fd, struct cn_msg *msg) | |
1392 | { | |
b4fb0ca2 | 1393 | struct nlmsghdr nlh = { .nlmsg_type = NLMSG_DONE }; |
cc04acf5 KS |
1394 | unsigned int size; |
1395 | struct msghdr message; | |
cc04acf5 KS |
1396 | struct iovec iov[2]; |
1397 | ||
2bc41ea3 | 1398 | size = sizeof(struct cn_msg) + msg->len; |
cc04acf5 | 1399 | |
b4fb0ca2 OH |
1400 | nlh.nlmsg_pid = getpid(); |
1401 | nlh.nlmsg_len = NLMSG_LENGTH(size); | |
cc04acf5 | 1402 | |
b4fb0ca2 OH |
1403 | iov[0].iov_base = &nlh; |
1404 | iov[0].iov_len = sizeof(nlh); | |
cc04acf5 KS |
1405 | |
1406 | iov[1].iov_base = msg; | |
1407 | iov[1].iov_len = size; | |
1408 | ||
1409 | memset(&message, 0, sizeof(message)); | |
1410 | message.msg_name = &addr; | |
1411 | message.msg_namelen = sizeof(addr); | |
1412 | message.msg_iov = iov; | |
1413 | message.msg_iovlen = 2; | |
1414 | ||
1415 | return sendmsg(fd, &message, 0); | |
1416 | } | |
1417 | ||
170f4bea VK |
1418 | void print_usage(char *argv[]) |
1419 | { | |
1420 | fprintf(stderr, "Usage: %s [options]\n" | |
1421 | "Options are:\n" | |
1422 | " -n, --no-daemon stay in foreground, don't daemonize\n" | |
1423 | " -h, --help print this help\n", argv[0]); | |
1424 | } | |
1425 | ||
1426 | int main(int argc, char *argv[]) | |
cc04acf5 | 1427 | { |
f4685fa6 | 1428 | int fd, len, nl_group; |
cc04acf5 KS |
1429 | int error; |
1430 | struct cn_msg *message; | |
1431 | struct pollfd pfd; | |
1432 | struct nlmsghdr *incoming_msg; | |
1433 | struct cn_msg *incoming_cn_msg; | |
26403354 | 1434 | struct hv_kvp_msg *hv_msg; |
7989f7d5 | 1435 | char *p; |
cc04acf5 KS |
1436 | char *key_value; |
1437 | char *key_name; | |
b47a81dc S |
1438 | int op; |
1439 | int pool; | |
32061b4d S |
1440 | char *if_name; |
1441 | struct hv_kvp_ipaddr_value *kvp_ip_val; | |
b4919a5f OH |
1442 | char *kvp_recv_buffer; |
1443 | size_t kvp_recv_buffer_len; | |
170f4bea VK |
1444 | int daemonize = 1, long_index = 0, opt; |
1445 | ||
1446 | static struct option long_options[] = { | |
1447 | {"help", no_argument, 0, 'h' }, | |
1448 | {"no-daemon", no_argument, 0, 'n' }, | |
1449 | {0, 0, 0, 0 } | |
1450 | }; | |
1451 | ||
1452 | while ((opt = getopt_long(argc, argv, "hn", long_options, | |
1453 | &long_index)) != -1) { | |
1454 | switch (opt) { | |
1455 | case 'n': | |
1456 | daemonize = 0; | |
1457 | break; | |
1458 | case 'h': | |
1459 | default: | |
1460 | print_usage(argv); | |
1461 | exit(EXIT_FAILURE); | |
1462 | } | |
1463 | } | |
cc04acf5 | 1464 | |
170f4bea | 1465 | if (daemonize && daemon(1, 0)) |
00663d73 | 1466 | return 1; |
170f4bea | 1467 | |
cc04acf5 KS |
1468 | openlog("KVP", 0, LOG_USER); |
1469 | syslog(LOG_INFO, "KVP starting; pid is:%d", getpid()); | |
b4919a5f | 1470 | |
269ce62b | 1471 | kvp_recv_buffer_len = NLMSG_LENGTH(0) + sizeof(struct cn_msg) + sizeof(struct hv_kvp_msg); |
b4919a5f | 1472 | kvp_recv_buffer = calloc(1, kvp_recv_buffer_len); |
269ce62b OH |
1473 | if (!kvp_recv_buffer) { |
1474 | syslog(LOG_ERR, "Failed to allocate netlink buffer"); | |
b4919a5f OH |
1475 | exit(EXIT_FAILURE); |
1476 | } | |
cc04acf5 KS |
1477 | /* |
1478 | * Retrieve OS release information. | |
1479 | */ | |
1480 | kvp_get_os_info(); | |
58125210 OH |
1481 | /* |
1482 | * Cache Fully Qualified Domain Name because getaddrinfo takes an | |
1483 | * unpredictable amount of time to finish. | |
1484 | */ | |
1485 | kvp_get_domain_name(full_domain_name, sizeof(full_domain_name)); | |
cc04acf5 | 1486 | |
db425334 S |
1487 | if (kvp_file_init()) { |
1488 | syslog(LOG_ERR, "Failed to initialize the pools"); | |
6bb22fea | 1489 | exit(EXIT_FAILURE); |
db425334 S |
1490 | } |
1491 | ||
cc04acf5 KS |
1492 | fd = socket(AF_NETLINK, SOCK_DGRAM, NETLINK_CONNECTOR); |
1493 | if (fd < 0) { | |
12e50c30 TH |
1494 | syslog(LOG_ERR, "netlink socket creation failed; error: %d %s", errno, |
1495 | strerror(errno)); | |
6bb22fea | 1496 | exit(EXIT_FAILURE); |
cc04acf5 KS |
1497 | } |
1498 | addr.nl_family = AF_NETLINK; | |
1499 | addr.nl_pad = 0; | |
1500 | addr.nl_pid = 0; | |
77d6a528 | 1501 | addr.nl_groups = 0; |
cc04acf5 KS |
1502 | |
1503 | ||
1504 | error = bind(fd, (struct sockaddr *)&addr, sizeof(addr)); | |
1505 | if (error < 0) { | |
12e50c30 | 1506 | syslog(LOG_ERR, "bind failed; error: %d %s", errno, strerror(errno)); |
cc04acf5 | 1507 | close(fd); |
6bb22fea | 1508 | exit(EXIT_FAILURE); |
cc04acf5 | 1509 | } |
f4685fa6 | 1510 | nl_group = CN_KVP_IDX; |
35901603 TH |
1511 | |
1512 | if (setsockopt(fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &nl_group, sizeof(nl_group)) < 0) { | |
1513 | syslog(LOG_ERR, "setsockopt failed; error: %d %s", errno, strerror(errno)); | |
1514 | close(fd); | |
1515 | exit(EXIT_FAILURE); | |
1516 | } | |
1517 | ||
cc04acf5 KS |
1518 | /* |
1519 | * Register ourselves with the kernel. | |
1520 | */ | |
269ce62b | 1521 | message = (struct cn_msg *)kvp_recv_buffer; |
cc04acf5 KS |
1522 | message->id.idx = CN_KVP_IDX; |
1523 | message->id.val = CN_KVP_VAL; | |
26403354 S |
1524 | |
1525 | hv_msg = (struct hv_kvp_msg *)message->data; | |
b47a81dc | 1526 | hv_msg->kvp_hdr.operation = KVP_OP_REGISTER1; |
cc04acf5 | 1527 | message->ack = 0; |
26403354 | 1528 | message->len = sizeof(struct hv_kvp_msg); |
cc04acf5 KS |
1529 | |
1530 | len = netlink_send(fd, message); | |
1531 | if (len < 0) { | |
12e50c30 | 1532 | syslog(LOG_ERR, "netlink_send failed; error: %d %s", errno, strerror(errno)); |
cc04acf5 | 1533 | close(fd); |
6bb22fea | 1534 | exit(EXIT_FAILURE); |
cc04acf5 KS |
1535 | } |
1536 | ||
1537 | pfd.fd = fd; | |
1538 | ||
1539 | while (1) { | |
bcc2c9c3 OH |
1540 | struct sockaddr *addr_p = (struct sockaddr *) &addr; |
1541 | socklen_t addr_l = sizeof(addr); | |
cc04acf5 KS |
1542 | pfd.events = POLLIN; |
1543 | pfd.revents = 0; | |
4d81e307 TH |
1544 | |
1545 | if (poll(&pfd, 1, -1) < 0) { | |
1546 | syslog(LOG_ERR, "poll failed; error: %d %s", errno, strerror(errno)); | |
1547 | if (errno == EINVAL) { | |
1548 | close(fd); | |
1549 | exit(EXIT_FAILURE); | |
1550 | } | |
1551 | else | |
1552 | continue; | |
1553 | } | |
cc04acf5 | 1554 | |
b4919a5f | 1555 | len = recvfrom(fd, kvp_recv_buffer, kvp_recv_buffer_len, 0, |
bcc2c9c3 | 1556 | addr_p, &addr_l); |
cc04acf5 | 1557 | |
95a69ada | 1558 | if (len < 0) { |
4300f264 | 1559 | int saved_errno = errno; |
bcc2c9c3 OH |
1560 | syslog(LOG_ERR, "recvfrom failed; pid:%u error:%d %s", |
1561 | addr.nl_pid, errno, strerror(errno)); | |
4300f264 DC |
1562 | |
1563 | if (saved_errno == ENOBUFS) { | |
1564 | syslog(LOG_ERR, "receive error: ignored"); | |
1565 | continue; | |
1566 | } | |
1567 | ||
cc04acf5 KS |
1568 | close(fd); |
1569 | return -1; | |
1570 | } | |
1571 | ||
95a69ada TH |
1572 | if (addr.nl_pid) { |
1573 | syslog(LOG_WARNING, "Received packet from untrusted pid:%u", | |
1574 | addr.nl_pid); | |
1575 | continue; | |
1576 | } | |
1577 | ||
cc04acf5 | 1578 | incoming_msg = (struct nlmsghdr *)kvp_recv_buffer; |
75db6014 TH |
1579 | |
1580 | if (incoming_msg->nlmsg_type != NLMSG_DONE) | |
1581 | continue; | |
1582 | ||
cc04acf5 | 1583 | incoming_cn_msg = (struct cn_msg *)NLMSG_DATA(incoming_msg); |
26403354 | 1584 | hv_msg = (struct hv_kvp_msg *)incoming_cn_msg->data; |
cc04acf5 | 1585 | |
b47a81dc S |
1586 | /* |
1587 | * We will use the KVP header information to pass back | |
1588 | * the error from this daemon. So, first copy the state | |
1589 | * and set the error code to success. | |
1590 | */ | |
1591 | op = hv_msg->kvp_hdr.operation; | |
1592 | pool = hv_msg->kvp_hdr.pool; | |
1593 | hv_msg->error = HV_S_OK; | |
1594 | ||
1595 | if ((in_hand_shake) && (op == KVP_OP_REGISTER1)) { | |
cc04acf5 KS |
1596 | /* |
1597 | * Driver is registering with us; stash away the version | |
1598 | * information. | |
1599 | */ | |
b47a81dc | 1600 | in_hand_shake = 0; |
e485ceac | 1601 | p = (char *)hv_msg->body.kvp_register.version; |
7989f7d5 | 1602 | lic_version = malloc(strlen(p) + 1); |
cc04acf5 | 1603 | if (lic_version) { |
7989f7d5 | 1604 | strcpy(lic_version, p); |
cc04acf5 KS |
1605 | syslog(LOG_INFO, "KVP LIC Version: %s", |
1606 | lic_version); | |
1607 | } else { | |
1608 | syslog(LOG_ERR, "malloc failed"); | |
1609 | } | |
1610 | continue; | |
b47a81dc | 1611 | } |
cc04acf5 | 1612 | |
b47a81dc | 1613 | switch (op) { |
16e87100 S |
1614 | case KVP_OP_GET_IP_INFO: |
1615 | kvp_ip_val = &hv_msg->body.kvp_ip_val; | |
1616 | if_name = | |
1617 | kvp_mac_to_if_name((char *)kvp_ip_val->adapter_id); | |
1618 | ||
1619 | if (if_name == NULL) { | |
1620 | /* | |
1621 | * We could not map the mac address to an | |
1622 | * interface name; return error. | |
1623 | */ | |
1624 | hv_msg->error = HV_E_FAIL; | |
1625 | break; | |
1626 | } | |
1627 | error = kvp_get_ip_info( | |
1628 | 0, if_name, KVP_OP_GET_IP_INFO, | |
1629 | kvp_ip_val, | |
1630 | (MAX_IP_ADDR_SIZE * 2)); | |
1631 | ||
1632 | if (error) | |
1633 | hv_msg->error = error; | |
1634 | ||
1635 | free(if_name); | |
1636 | break; | |
1637 | ||
32061b4d S |
1638 | case KVP_OP_SET_IP_INFO: |
1639 | kvp_ip_val = &hv_msg->body.kvp_ip_val; | |
1640 | if_name = kvp_get_if_name( | |
1641 | (char *)kvp_ip_val->adapter_id); | |
1642 | if (if_name == NULL) { | |
1643 | /* | |
1644 | * We could not map the guid to an | |
1645 | * interface name; return error. | |
1646 | */ | |
1647 | hv_msg->error = HV_GUID_NOTFOUND; | |
1648 | break; | |
1649 | } | |
1650 | error = kvp_set_ip_info(if_name, kvp_ip_val); | |
1651 | if (error) | |
1652 | hv_msg->error = error; | |
1653 | ||
1654 | free(if_name); | |
1655 | break; | |
1656 | ||
fa3d5b85 | 1657 | case KVP_OP_SET: |
b47a81dc | 1658 | if (kvp_key_add_or_modify(pool, |
db425334 S |
1659 | hv_msg->body.kvp_set.data.key, |
1660 | hv_msg->body.kvp_set.data.key_size, | |
1661 | hv_msg->body.kvp_set.data.value, | |
1662 | hv_msg->body.kvp_set.data.value_size)) | |
b47a81dc | 1663 | hv_msg->error = HV_S_CONT; |
db425334 S |
1664 | break; |
1665 | ||
fa3d5b85 | 1666 | case KVP_OP_GET: |
b47a81dc | 1667 | if (kvp_get_value(pool, |
db425334 S |
1668 | hv_msg->body.kvp_set.data.key, |
1669 | hv_msg->body.kvp_set.data.key_size, | |
1670 | hv_msg->body.kvp_set.data.value, | |
1671 | hv_msg->body.kvp_set.data.value_size)) | |
b47a81dc | 1672 | hv_msg->error = HV_S_CONT; |
db425334 S |
1673 | break; |
1674 | ||
fa3d5b85 | 1675 | case KVP_OP_DELETE: |
b47a81dc | 1676 | if (kvp_key_delete(pool, |
db425334 S |
1677 | hv_msg->body.kvp_delete.key, |
1678 | hv_msg->body.kvp_delete.key_size)) | |
b47a81dc | 1679 | hv_msg->error = HV_S_CONT; |
db425334 S |
1680 | break; |
1681 | ||
cc04acf5 | 1682 | default: |
26403354 | 1683 | break; |
cc04acf5 KS |
1684 | } |
1685 | ||
b47a81dc | 1686 | if (op != KVP_OP_ENUMERATE) |
fa3d5b85 S |
1687 | goto kvp_done; |
1688 | ||
adc80ae6 S |
1689 | /* |
1690 | * If the pool is KVP_POOL_AUTO, dynamically generate | |
1691 | * both the key and the value; if not read from the | |
1692 | * appropriate pool. | |
1693 | */ | |
b47a81dc S |
1694 | if (pool != KVP_POOL_AUTO) { |
1695 | if (kvp_pool_enumerate(pool, | |
adc80ae6 S |
1696 | hv_msg->body.kvp_enum_data.index, |
1697 | hv_msg->body.kvp_enum_data.data.key, | |
1698 | HV_KVP_EXCHANGE_MAX_KEY_SIZE, | |
1699 | hv_msg->body.kvp_enum_data.data.value, | |
b47a81dc S |
1700 | HV_KVP_EXCHANGE_MAX_VALUE_SIZE)) |
1701 | hv_msg->error = HV_S_CONT; | |
adc80ae6 S |
1702 | goto kvp_done; |
1703 | } | |
1704 | ||
26403354 S |
1705 | hv_msg = (struct hv_kvp_msg *)incoming_cn_msg->data; |
1706 | key_name = (char *)hv_msg->body.kvp_enum_data.data.key; | |
1707 | key_value = (char *)hv_msg->body.kvp_enum_data.data.value; | |
cc04acf5 | 1708 | |
26403354 | 1709 | switch (hv_msg->body.kvp_enum_data.index) { |
cc04acf5 | 1710 | case FullyQualifiedDomainName: |
58125210 | 1711 | strcpy(key_value, full_domain_name); |
cc04acf5 KS |
1712 | strcpy(key_name, "FullyQualifiedDomainName"); |
1713 | break; | |
1714 | case IntegrationServicesVersion: | |
1715 | strcpy(key_name, "IntegrationServicesVersion"); | |
1716 | strcpy(key_value, lic_version); | |
1717 | break; | |
1718 | case NetworkAddressIPv4: | |
4a3b97e5 | 1719 | kvp_get_ip_info(AF_INET, NULL, KVP_OP_ENUMERATE, |
0ecaa198 | 1720 | key_value, HV_KVP_EXCHANGE_MAX_VALUE_SIZE); |
cc04acf5 KS |
1721 | strcpy(key_name, "NetworkAddressIPv4"); |
1722 | break; | |
1723 | case NetworkAddressIPv6: | |
4a3b97e5 | 1724 | kvp_get_ip_info(AF_INET6, NULL, KVP_OP_ENUMERATE, |
0ecaa198 | 1725 | key_value, HV_KVP_EXCHANGE_MAX_VALUE_SIZE); |
cc04acf5 KS |
1726 | strcpy(key_name, "NetworkAddressIPv6"); |
1727 | break; | |
1728 | case OSBuildNumber: | |
1729 | strcpy(key_value, os_build); | |
1730 | strcpy(key_name, "OSBuildNumber"); | |
1731 | break; | |
1732 | case OSName: | |
1733 | strcpy(key_value, os_name); | |
1734 | strcpy(key_name, "OSName"); | |
1735 | break; | |
1736 | case OSMajorVersion: | |
1737 | strcpy(key_value, os_major); | |
1738 | strcpy(key_name, "OSMajorVersion"); | |
1739 | break; | |
1740 | case OSMinorVersion: | |
1741 | strcpy(key_value, os_minor); | |
1742 | strcpy(key_name, "OSMinorVersion"); | |
1743 | break; | |
1744 | case OSVersion: | |
f426a36c | 1745 | strcpy(key_value, os_version); |
cc04acf5 KS |
1746 | strcpy(key_name, "OSVersion"); |
1747 | break; | |
1748 | case ProcessorArchitecture: | |
1749 | strcpy(key_value, processor_arch); | |
1750 | strcpy(key_name, "ProcessorArchitecture"); | |
1751 | break; | |
1752 | default: | |
b47a81dc | 1753 | hv_msg->error = HV_S_CONT; |
cc04acf5 KS |
1754 | break; |
1755 | } | |
1756 | /* | |
1757 | * Send the value back to the kernel. The response is | |
1758 | * already in the receive buffer. Update the cn_msg header to | |
1759 | * reflect the key value that has been added to the message | |
1760 | */ | |
fa3d5b85 | 1761 | kvp_done: |
cc04acf5 KS |
1762 | |
1763 | incoming_cn_msg->id.idx = CN_KVP_IDX; | |
1764 | incoming_cn_msg->id.val = CN_KVP_VAL; | |
cc04acf5 | 1765 | incoming_cn_msg->ack = 0; |
26403354 | 1766 | incoming_cn_msg->len = sizeof(struct hv_kvp_msg); |
cc04acf5 KS |
1767 | |
1768 | len = netlink_send(fd, incoming_cn_msg); | |
1769 | if (len < 0) { | |
4300f264 | 1770 | int saved_errno = errno; |
12e50c30 TH |
1771 | syslog(LOG_ERR, "net_link send failed; error: %d %s", errno, |
1772 | strerror(errno)); | |
4300f264 DC |
1773 | |
1774 | if (saved_errno == ENOMEM || saved_errno == ENOBUFS) { | |
1775 | syslog(LOG_ERR, "send error: ignored"); | |
1776 | continue; | |
1777 | } | |
1778 | ||
6bb22fea | 1779 | exit(EXIT_FAILURE); |
cc04acf5 KS |
1780 | } |
1781 | } | |
1782 | ||
1783 | } |