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6e75df87 VB |
1 | /* |
2 | * Copyright (c) 2008 Vincent Bernat <bernat@luffy.cx> | |
3 | * | |
4 | * Permission to use, copy, modify, and distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
15 | */ | |
16 | ||
17 | #define INCLUDE_LINUX_IF_H | |
18 | #include "lldpd.h" | |
19 | ||
20 | #include <stdio.h> | |
06db3608 | 21 | #include <stddef.h> |
6e75df87 VB |
22 | #include <unistd.h> |
23 | #include <errno.h> | |
24 | #include <sys/ioctl.h> | |
25 | #include <sys/types.h> | |
26 | #include <sys/stat.h> | |
27 | #include <fcntl.h> | |
28 | #include <fnmatch.h> | |
29 | #include <arpa/inet.h> | |
6e75df87 VB |
30 | #include <net/if_arp.h> |
31 | #include <linux/if_vlan.h> | |
32 | #include <linux/if_bonding.h> | |
33 | #include <linux/if_bridge.h> | |
34 | #include <linux/wireless.h> | |
35 | #include <linux/sockios.h> | |
36 | #include <linux/filter.h> | |
6e75df87 VB |
37 | #include <linux/if_packet.h> |
38 | ||
39 | #define SYSFS_PATH_MAX 256 | |
40 | #define MAX_PORTS 1024 | |
41 | #define MAX_BRIDGES 1024 | |
42 | ||
43 | /* BPF filter to get revelant information from interfaces */ | |
44 | /* LLDP: "ether proto 0x88cc and ether dst 01:80:c2:00:00:0e" */ | |
45 | /* FDP: "ether dst 01:e0:52:cc:cc:cc" */ | |
46 | /* CDP: "ether dst 01:00:0c:cc:cc:cc" */ | |
47 | /* SONMP: "ether dst 01:00:81:00:01:00" */ | |
48 | /* EDP: "ether dst 00:e0:2b:00:00:00" */ | |
49 | #define LLDPD_FILTER_F \ | |
50 | { 0x28, 0, 0, 0x0000000c }, \ | |
51 | { 0x15, 0, 4, 0x000088cc }, \ | |
52 | { 0x20, 0, 0, 0x00000002 }, \ | |
53 | { 0x15, 0, 2, 0xc200000e }, \ | |
54 | { 0x28, 0, 0, 0x00000000 }, \ | |
55 | { 0x15, 11, 12, 0x00000180 }, \ | |
56 | { 0x20, 0, 0, 0x00000002 }, \ | |
57 | { 0x15, 0, 2, 0x2b000000 }, \ | |
58 | { 0x28, 0, 0, 0x00000000 }, \ | |
59 | { 0x15, 7, 8, 0x000000e0 }, \ | |
60 | { 0x15, 1, 0, 0x0ccccccc }, \ | |
61 | { 0x15, 0, 2, 0x81000100 }, \ | |
62 | { 0x28, 0, 0, 0x00000000 }, \ | |
63 | { 0x15, 3, 4, 0x00000100 }, \ | |
64 | { 0x15, 0, 3, 0x52cccccc }, \ | |
65 | { 0x28, 0, 0, 0x00000000 }, \ | |
66 | { 0x15, 0, 1, 0x000001e0 }, \ | |
67 | { 0x6, 0, 0, 0x0000ffff }, \ | |
68 | { 0x6, 0, 0, 0x00000000 }, | |
69 | static struct sock_filter lldpd_filter_f[] = { LLDPD_FILTER_F }; | |
70 | ||
71 | /* net/if.h */ | |
72 | extern unsigned int if_nametoindex (__const char *__ifname) __THROW; | |
73 | extern char *if_indextoname (unsigned int __ifindex, char *__ifname) __THROW; | |
74 | ||
75 | static int iface_is_bridge(struct lldpd *, const char *); | |
7a008075 | 76 | #ifdef ENABLE_DOT1 |
6e75df87 VB |
77 | static int iface_is_bridged_to(struct lldpd *, |
78 | const char *, const char *); | |
7a008075 | 79 | #endif |
6e75df87 VB |
80 | static int iface_is_wireless(struct lldpd *, const char *); |
81 | static int iface_is_vlan(struct lldpd *, const char *); | |
82 | static int iface_is_bond(struct lldpd *, const char *); | |
83 | static int iface_is_bond_slave(struct lldpd *, | |
84 | const char *, const char *, int *); | |
85 | static int iface_is_enslaved(struct lldpd *, const char *); | |
6e75df87 | 86 | static void iface_get_permanent_mac(struct lldpd *, struct lldpd_hardware *); |
849954d7 | 87 | static int iface_minimal_checks(struct lldpd *, struct ifaddrs *); |
6a2fa591 | 88 | static int iface_set_filter(const char *, int); |
6e75df87 | 89 | |
36bd79e3 | 90 | static void iface_port_name_desc(struct lldpd_hardware *); |
6e75df87 VB |
91 | static void iface_macphy(struct lldpd_hardware *); |
92 | static void iface_mtu(struct lldpd *, struct lldpd_hardware *); | |
93 | static void iface_multicast(struct lldpd *, const char *, int); | |
94 | static int iface_eth_init(struct lldpd *, struct lldpd_hardware *); | |
849954d7 | 95 | static int iface_bond_init(struct lldpd *, struct lldpd_hardware *); |
6a2fa591 | 96 | static void iface_fds_close(struct lldpd *, struct lldpd_hardware *); |
5994b27d VB |
97 | #ifdef ENABLE_DOT1 |
98 | static void iface_append_vlan(struct lldpd *, | |
99 | struct lldpd_hardware *, struct ifaddrs *); | |
100 | #endif | |
6e75df87 VB |
101 | |
102 | static int iface_eth_send(struct lldpd *, struct lldpd_hardware*, char *, size_t); | |
103 | static int iface_eth_recv(struct lldpd *, struct lldpd_hardware*, int, char*, size_t); | |
104 | static int iface_eth_close(struct lldpd *, struct lldpd_hardware *); | |
105 | struct lldpd_ops eth_ops = { | |
106 | .send = iface_eth_send, | |
107 | .recv = iface_eth_recv, | |
108 | .cleanup = iface_eth_close, | |
109 | }; | |
849954d7 VB |
110 | static int iface_bond_send(struct lldpd *, struct lldpd_hardware*, char *, size_t); |
111 | static int iface_bond_recv(struct lldpd *, struct lldpd_hardware*, int, char*, size_t); | |
112 | static int iface_bond_close(struct lldpd *, struct lldpd_hardware *); | |
113 | struct lldpd_ops bond_ops = { | |
114 | .send = iface_bond_send, | |
115 | .recv = iface_bond_recv, | |
116 | .cleanup = iface_bond_close, | |
117 | }; | |
6e75df87 VB |
118 | |
119 | static int | |
120 | old_iface_is_bridge(struct lldpd *cfg, const char *name) | |
121 | { | |
122 | int ifindices[MAX_BRIDGES]; | |
123 | char ifname[IFNAMSIZ]; | |
124 | int num, i; | |
125 | unsigned long args[3] = { BRCTL_GET_BRIDGES, | |
126 | (unsigned long)ifindices, MAX_BRIDGES }; | |
b9f4c120 VB |
127 | if ((num = ioctl(cfg->g_sock, SIOCGIFBR, args)) < 0) |
128 | /* This can happen with a 64bit kernel and 32bit | |
129 | userland, don't output anything about this to avoid | |
130 | to fill logs. */ | |
6e75df87 | 131 | return 0; |
6e75df87 VB |
132 | for (i = 0; i < num; i++) { |
133 | if (if_indextoname(ifindices[i], ifname) == NULL) | |
134 | LLOG_INFO("unable to get name of interface %d", | |
135 | ifindices[i]); | |
136 | else if (strncmp(name, ifname, IFNAMSIZ) == 0) | |
137 | return 1; | |
138 | } | |
139 | return 0; | |
140 | } | |
141 | ||
142 | static int | |
143 | iface_is_bridge(struct lldpd *cfg, const char *name) | |
144 | { | |
f4ed5af1 | 145 | #ifdef SYSFS_BRIDGE_FDB |
6e75df87 VB |
146 | char path[SYSFS_PATH_MAX]; |
147 | int f; | |
148 | ||
149 | if ((snprintf(path, SYSFS_PATH_MAX, | |
150 | SYSFS_CLASS_NET "%s/" SYSFS_BRIDGE_FDB, name)) >= SYSFS_PATH_MAX) | |
151 | LLOG_WARNX("path truncated"); | |
152 | if ((f = priv_open(path)) < 0) { | |
153 | return old_iface_is_bridge(cfg, name); | |
154 | } | |
155 | close(f); | |
156 | return 1; | |
f4ed5af1 VB |
157 | #else |
158 | return old_iface_is_bridge(cfg, name); | |
159 | #endif | |
6e75df87 VB |
160 | } |
161 | ||
7a008075 | 162 | #ifdef ENABLE_DOT1 |
6e75df87 VB |
163 | static int |
164 | old_iface_is_bridged_to(struct lldpd *cfg, const char *slave, const char *master) | |
165 | { | |
166 | int j, index = if_nametoindex(slave); | |
167 | int ifptindices[MAX_PORTS]; | |
168 | unsigned long args2[4] = { BRCTL_GET_PORT_LIST, | |
169 | (unsigned long)ifptindices, MAX_PORTS, 0 }; | |
170 | struct ifreq ifr; | |
171 | ||
172 | strncpy(ifr.ifr_name, master, IFNAMSIZ); | |
173 | memset(ifptindices, 0, sizeof(ifptindices)); | |
174 | ifr.ifr_data = (char *)&args2; | |
175 | ||
b9f4c120 VB |
176 | if (ioctl(cfg->g_sock, SIOCDEVPRIVATE, &ifr) < 0) |
177 | /* This can happen with a 64bit kernel and 32bit | |
178 | userland, don't output anything about this to avoid | |
179 | to fill logs. */ | |
6e75df87 | 180 | return 0; |
6e75df87 VB |
181 | |
182 | for (j = 0; j < MAX_PORTS; j++) { | |
183 | if (ifptindices[j] == index) | |
184 | return 1; | |
185 | } | |
186 | ||
187 | return 0; | |
188 | } | |
189 | ||
190 | static int | |
191 | iface_is_bridged_to(struct lldpd *cfg, const char *slave, const char *master) | |
192 | { | |
f4ed5af1 | 193 | #ifdef SYSFS_BRIDGE_PORT_SUBDIR |
6e75df87 VB |
194 | char path[SYSFS_PATH_MAX]; |
195 | int f; | |
196 | ||
197 | /* Master should be a bridge, first */ | |
198 | if (!iface_is_bridge(cfg, master)) return 0; | |
199 | ||
200 | if (snprintf(path, SYSFS_PATH_MAX, | |
201 | SYSFS_CLASS_NET "%s/" SYSFS_BRIDGE_PORT_SUBDIR "/%s/port_no", | |
202 | master, slave) >= SYSFS_PATH_MAX) | |
203 | LLOG_WARNX("path truncated"); | |
204 | if ((f = priv_open(path)) < 0) { | |
205 | return old_iface_is_bridged_to(cfg, slave, master); | |
206 | } | |
207 | close(f); | |
208 | return 1; | |
f4ed5af1 VB |
209 | #else |
210 | return old_iface_is_bridged_to(cfg, slave, master); | |
211 | #endif | |
6e75df87 | 212 | } |
7a008075 | 213 | #endif |
6e75df87 VB |
214 | |
215 | static int | |
216 | iface_is_vlan(struct lldpd *cfg, const char *name) | |
217 | { | |
218 | struct vlan_ioctl_args ifv; | |
219 | memset(&ifv, 0, sizeof(ifv)); | |
220 | ifv.cmd = GET_VLAN_REALDEV_NAME_CMD; | |
221 | if ((strlcpy(ifv.device1, name, sizeof(ifv.device1))) >= | |
222 | sizeof(ifv.device1)) | |
223 | LLOG_WARNX("device name truncated"); | |
224 | if (ioctl(cfg->g_sock, SIOCGIFVLAN, &ifv) >= 0) | |
225 | return 1; | |
226 | return 0; | |
227 | } | |
228 | ||
229 | static int | |
230 | iface_is_wireless(struct lldpd *cfg, const char *name) | |
231 | { | |
232 | struct iwreq iwr; | |
233 | strlcpy(iwr.ifr_name, name, IFNAMSIZ); | |
234 | if (ioctl(cfg->g_sock, SIOCGIWNAME, &iwr) >= 0) | |
235 | return 1; | |
236 | return 0; | |
237 | } | |
238 | ||
239 | static int | |
240 | iface_is_bond(struct lldpd *cfg, const char *name) | |
241 | { | |
242 | struct ifreq ifr; | |
243 | struct ifbond ifb; | |
244 | memset(&ifr, 0, sizeof(ifr)); | |
245 | memset(&ifb, 0, sizeof(ifb)); | |
246 | strlcpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); | |
8f88ff70 | 247 | ifr.ifr_data = (char *)&ifb; |
6e75df87 VB |
248 | if (ioctl(cfg->g_sock, SIOCBONDINFOQUERY, &ifr) >= 0) |
249 | return 1; | |
250 | return 0; | |
251 | } | |
252 | ||
253 | static int | |
254 | iface_is_bond_slave(struct lldpd *cfg, const char *slave, const char *master, | |
255 | int *active) | |
256 | { | |
257 | struct ifreq ifr; | |
258 | struct ifbond ifb; | |
259 | struct ifslave ifs; | |
260 | memset(&ifr, 0, sizeof(ifr)); | |
261 | memset(&ifb, 0, sizeof(ifb)); | |
262 | strlcpy(ifr.ifr_name, master, sizeof(ifr.ifr_name)); | |
8f88ff70 | 263 | ifr.ifr_data = (char *)&ifb; |
6e75df87 VB |
264 | if (ioctl(cfg->g_sock, SIOCBONDINFOQUERY, &ifr) >= 0) { |
265 | while (ifb.num_slaves--) { | |
266 | memset(&ifr, 0, sizeof(ifr)); | |
267 | memset(&ifs, 0, sizeof(ifs)); | |
268 | strlcpy(ifr.ifr_name, master, sizeof(ifr.ifr_name)); | |
8f88ff70 | 269 | ifr.ifr_data = (char *)&ifs; |
6e75df87 VB |
270 | ifs.slave_id = ifb.num_slaves; |
271 | if ((ioctl(cfg->g_sock, SIOCBONDSLAVEINFOQUERY, &ifr) >= 0) && | |
272 | (strncmp(ifs.slave_name, slave, sizeof(ifs.slave_name)) == 0)) { | |
273 | if (active) | |
274 | *active = ifs.state; | |
275 | return 1; | |
276 | } | |
277 | } | |
278 | } | |
279 | return 0; | |
280 | } | |
281 | ||
282 | static int | |
283 | iface_is_enslaved(struct lldpd *cfg, const char *name) | |
284 | { | |
285 | struct ifaddrs *ifap, *ifa; | |
286 | int master; | |
287 | ||
288 | if (getifaddrs(&ifap) != 0) { | |
289 | LLOG_WARN("unable to get interface list"); | |
290 | return -1; | |
291 | } | |
292 | for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) { | |
293 | if (iface_is_bond_slave(cfg, name, ifa->ifa_name, NULL)) { | |
294 | master = if_nametoindex(ifa->ifa_name); | |
295 | freeifaddrs(ifap); | |
296 | return master; | |
297 | } | |
298 | } | |
299 | freeifaddrs(ifap); | |
300 | return -1; | |
301 | } | |
302 | ||
6e75df87 VB |
303 | static void |
304 | iface_get_permanent_mac(struct lldpd *cfg, struct lldpd_hardware *hardware) | |
305 | { | |
306 | int master, f, state = 0; | |
307 | FILE *netbond; | |
308 | const char *slaveif = "Slave Interface: "; | |
309 | const char *hwaddr = "Permanent HW addr: "; | |
310 | u_int8_t mac[ETHER_ADDR_LEN]; | |
311 | char bond[IFNAMSIZ]; | |
312 | char path[SYSFS_PATH_MAX]; | |
313 | char line[100]; | |
314 | if ((master = iface_is_enslaved(cfg, hardware->h_ifname)) == -1) | |
315 | return; | |
316 | /* We have a bond, we need to query it to get real MAC addresses */ | |
317 | if ((if_indextoname(master, bond)) == NULL) { | |
318 | LLOG_WARNX("unable to get bond name"); | |
319 | return; | |
320 | } | |
321 | ||
322 | if (snprintf(path, SYSFS_PATH_MAX, "/proc/net/bonding/%s", | |
323 | bond) >= SYSFS_PATH_MAX) { | |
324 | LLOG_WARNX("path truncated"); | |
325 | return; | |
326 | } | |
327 | if ((f = priv_open(path)) < 0) { | |
328 | if (snprintf(path, SYSFS_PATH_MAX, "/proc/self/net/bonding/%s", | |
329 | bond) >= SYSFS_PATH_MAX) { | |
330 | LLOG_WARNX("path truncated"); | |
331 | return; | |
332 | } | |
333 | f = priv_open(path); | |
334 | } | |
335 | if (f < 0) { | |
336 | LLOG_WARNX("unable to find %s in /proc/net/bonding or /proc/self/net/bonding", | |
337 | bond); | |
338 | return; | |
339 | } | |
340 | if ((netbond = fdopen(f, "r")) == NULL) { | |
341 | LLOG_WARN("unable to read stream from %s", path); | |
342 | close(f); | |
343 | return; | |
344 | } | |
345 | /* State 0: | |
346 | We parse the file to search "Slave Interface: ". If found, go to | |
347 | state 1. | |
348 | State 1: | |
349 | We parse the file to search "Permanent HW addr: ". If found, we get | |
350 | the mac. | |
351 | */ | |
352 | while (fgets(line, sizeof(line), netbond)) { | |
353 | switch (state) { | |
354 | case 0: | |
355 | if (strncmp(line, slaveif, strlen(slaveif)) == 0) { | |
356 | if (line[strlen(line)-1] == '\n') | |
357 | line[strlen(line)-1] = '\0'; | |
358 | if (strncmp(hardware->h_ifname, | |
359 | line + strlen(slaveif), | |
360 | sizeof(hardware->h_ifname)) == 0) | |
361 | state++; | |
362 | } | |
363 | break; | |
364 | case 1: | |
365 | if (strncmp(line, hwaddr, strlen(hwaddr)) == 0) { | |
366 | if (line[strlen(line)-1] == '\n') | |
367 | line[strlen(line)-1] = '\0'; | |
368 | if (sscanf(line + strlen(hwaddr), | |
369 | "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx", | |
370 | &mac[0], &mac[1], &mac[2], | |
371 | &mac[3], &mac[4], &mac[5]) != | |
372 | ETHER_ADDR_LEN) { | |
373 | LLOG_WARN("unable to parse %s", | |
374 | line + strlen(hwaddr)); | |
375 | fclose(netbond); | |
376 | return; | |
377 | } | |
378 | memcpy(hardware->h_lladdr, mac, | |
379 | ETHER_ADDR_LEN); | |
380 | fclose(netbond); | |
381 | return; | |
382 | } | |
383 | break; | |
384 | } | |
385 | } | |
386 | LLOG_WARNX("unable to find real mac address for %s", | |
387 | bond); | |
388 | fclose(netbond); | |
389 | } | |
390 | ||
849954d7 VB |
391 | /* Generic minimal checks to handle a given interface. */ |
392 | static int | |
393 | iface_minimal_checks(struct lldpd *cfg, struct ifaddrs *ifa) | |
394 | { | |
06db3608 | 395 | struct sockaddr_ll sdl; |
58fe6128 | 396 | struct ifreq ifr; |
a0aa43e9 | 397 | int is_bridge = iface_is_bridge(cfg, ifa->ifa_name); |
849954d7 VB |
398 | |
399 | if (!(LOCAL_CHASSIS(cfg)->c_cap_enabled & LLDP_CAP_BRIDGE) && | |
a0aa43e9 | 400 | is_bridge) { |
849954d7 VB |
401 | LOCAL_CHASSIS(cfg)->c_cap_enabled |= LLDP_CAP_BRIDGE; |
402 | return 0; | |
403 | } | |
404 | ||
405 | if (!(LOCAL_CHASSIS(cfg)->c_cap_enabled & LLDP_CAP_WLAN) && | |
406 | iface_is_wireless(cfg, ifa->ifa_name)) | |
407 | LOCAL_CHASSIS(cfg)->c_cap_enabled |= LLDP_CAP_WLAN; | |
408 | ||
409 | /* First, check if this interface has already been handled */ | |
410 | if (!ifa->ifa_flags) | |
411 | return 0; | |
412 | ||
413 | if (ifa->ifa_addr == NULL || | |
414 | ifa->ifa_addr->sa_family != PF_PACKET) | |
415 | return 0; | |
416 | ||
06db3608 VB |
417 | memcpy(&sdl, ifa->ifa_addr, sizeof(struct sockaddr_ll)); |
418 | if (sdl.sll_hatype != ARPHRD_ETHER || !sdl.sll_halen) | |
849954d7 VB |
419 | return 0; |
420 | ||
421 | /* We request that the interface is able to do either multicast | |
422 | * or broadcast to be able to send discovery frames. */ | |
423 | if (!(ifa->ifa_flags & (IFF_MULTICAST|IFF_BROADCAST))) | |
424 | return 0; | |
425 | ||
58fe6128 VB |
426 | /* Check queue len. If no queue, this usually means that this |
427 | is not a "real" interface. */ | |
428 | memset(&ifr, 0, sizeof(ifr)); | |
429 | strcpy(ifr.ifr_name, ifa->ifa_name); | |
430 | if ((ioctl(cfg->g_sock, SIOCGIFTXQLEN, &ifr) < 0) || !ifr.ifr_qlen) | |
431 | return 0; | |
432 | ||
a0aa43e9 | 433 | /* Don't handle bond and VLAN, nor bridge */ |
849954d7 | 434 | if ((iface_is_vlan(cfg, ifa->ifa_name)) || |
a0aa43e9 V |
435 | (iface_is_bond(cfg, ifa->ifa_name)) || |
436 | is_bridge) | |
849954d7 VB |
437 | return 0; |
438 | ||
439 | return 1; | |
440 | } | |
441 | ||
442 | static int | |
6a2fa591 | 443 | iface_set_filter(const char *name, int fd) |
849954d7 VB |
444 | { |
445 | const struct sock_fprog prog = { | |
446 | .filter = lldpd_filter_f, | |
447 | .len = sizeof(lldpd_filter_f) / sizeof(struct sock_filter) | |
448 | }; | |
449 | if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, | |
450 | &prog, sizeof(prog)) < 0) { | |
6a2fa591 | 451 | LLOG_WARN("unable to change filter for %s", name); |
849954d7 VB |
452 | return ENETDOWN; |
453 | } | |
454 | return 0; | |
455 | } | |
456 | ||
f8cb50fa | 457 | /* Fill up port name and description */ |
849954d7 | 458 | static void |
36bd79e3 | 459 | iface_port_name_desc(struct lldpd_hardware *hardware) |
849954d7 VB |
460 | { |
461 | struct lldpd_port *port = &hardware->h_lport; | |
36bd79e3 VB |
462 | char buffer[256]; /* 256 = IFALIASZ */ |
463 | char path[SYSFS_PATH_MAX]; | |
464 | int f; | |
465 | ||
466 | /* There are two cases: | |
467 | ||
468 | 1. We have a kernel recent enough to support ifAlias | |
469 | _and_ a non empty ifAlias, then we will use it for | |
470 | description and use ifname for port ID. | |
471 | ||
472 | 2. Otherwise, we will use the MAC address as ID and the | |
473 | port name in description. | |
474 | */ | |
475 | ||
476 | if ((snprintf(path, SYSFS_PATH_MAX, | |
477 | SYSFS_CLASS_NET "%s/ifalias", hardware->h_ifname)) >= SYSFS_PATH_MAX) | |
478 | LLOG_WARNX("path truncated"); | |
479 | memset(buffer, 0, sizeof(buffer)); | |
480 | if (((f = priv_open(path)) < 0) || (read(f, buffer, sizeof(buffer)-1) < 1)) { | |
481 | /* Case 2: MAC address and port name */ | |
482 | close(f); | |
483 | port->p_id_subtype = LLDP_PORTID_SUBTYPE_LLADDR; | |
484 | if ((port->p_id = | |
485 | calloc(1, sizeof(hardware->h_lladdr))) == NULL) | |
486 | fatal(NULL); | |
487 | memcpy(port->p_id, hardware->h_lladdr, | |
488 | sizeof(hardware->h_lladdr)); | |
489 | port->p_id_len = sizeof(hardware->h_lladdr); | |
490 | port->p_descr = strdup(hardware->h_ifname); | |
491 | return; | |
492 | } | |
493 | /* Case 1: port name and port description */ | |
494 | close(f); | |
495 | port->p_id_subtype = LLDP_PORTID_SUBTYPE_IFNAME; | |
496 | port->p_id_len = strlen(hardware->h_ifname); | |
497 | if ((port->p_id = | |
498 | calloc(1, port->p_id_len)) == NULL) | |
849954d7 | 499 | fatal(NULL); |
36bd79e3 VB |
500 | memcpy(port->p_id, hardware->h_ifname, port->p_id_len); |
501 | if (buffer[strlen(buffer) - 1] == '\n') | |
502 | buffer[strlen(buffer) - 1] = '\0'; | |
503 | port->p_descr = strdup(buffer); | |
849954d7 VB |
504 | } |
505 | ||
6e75df87 VB |
506 | /* Fill up MAC/PHY for a given hardware port */ |
507 | static void | |
508 | iface_macphy(struct lldpd_hardware *hardware) | |
509 | { | |
510 | #ifdef ENABLE_DOT3 | |
511 | struct ethtool_cmd ethc; | |
512 | struct lldpd_port *port = &hardware->h_lport; | |
513 | int j; | |
514 | int advertised_ethtool_to_rfc3636[][2] = { | |
515 | {ADVERTISED_10baseT_Half, LLDP_DOT3_LINK_AUTONEG_10BASE_T}, | |
516 | {ADVERTISED_10baseT_Full, LLDP_DOT3_LINK_AUTONEG_10BASET_FD}, | |
517 | {ADVERTISED_100baseT_Half, LLDP_DOT3_LINK_AUTONEG_100BASE_TX}, | |
518 | {ADVERTISED_100baseT_Full, LLDP_DOT3_LINK_AUTONEG_100BASE_TXFD}, | |
519 | {ADVERTISED_1000baseT_Half, LLDP_DOT3_LINK_AUTONEG_1000BASE_T}, | |
520 | {ADVERTISED_1000baseT_Full, LLDP_DOT3_LINK_AUTONEG_1000BASE_TFD}, | |
521 | {ADVERTISED_10000baseT_Full, LLDP_DOT3_LINK_AUTONEG_OTHER}, | |
522 | {ADVERTISED_Pause, LLDP_DOT3_LINK_AUTONEG_FDX_PAUSE}, | |
523 | {ADVERTISED_Asym_Pause, LLDP_DOT3_LINK_AUTONEG_FDX_APAUSE}, | |
524 | {ADVERTISED_2500baseX_Full, LLDP_DOT3_LINK_AUTONEG_OTHER}, | |
525 | {0,0}}; | |
526 | ||
527 | if (priv_ethtool(hardware->h_ifname, ðc) == 0) { | |
528 | port->p_autoneg_support = (ethc.supported & SUPPORTED_Autoneg) ? 1 : 0; | |
529 | port->p_autoneg_enabled = (ethc.autoneg == AUTONEG_DISABLE) ? 0 : 1; | |
530 | for (j=0; advertised_ethtool_to_rfc3636[j][0]; j++) { | |
531 | if (ethc.advertising & advertised_ethtool_to_rfc3636[j][0]) | |
532 | port->p_autoneg_advertised |= | |
533 | advertised_ethtool_to_rfc3636[j][1]; | |
534 | } | |
535 | switch (ethc.speed) { | |
536 | case SPEED_10: | |
537 | port->p_mau_type = (ethc.duplex == DUPLEX_FULL) ? \ | |
538 | LLDP_DOT3_MAU_10BASETFD : LLDP_DOT3_MAU_10BASETHD; | |
539 | if (ethc.port == PORT_BNC) port->p_mau_type = LLDP_DOT3_MAU_10BASE2; | |
540 | if (ethc.port == PORT_FIBRE) | |
541 | port->p_mau_type = (ethc.duplex == DUPLEX_FULL) ? \ | |
542 | LLDP_DOT3_MAU_10BASEFLDF : LLDP_DOT3_MAU_10BASEFLHD; | |
543 | break; | |
544 | case SPEED_100: | |
545 | port->p_mau_type = (ethc.duplex == DUPLEX_FULL) ? \ | |
546 | LLDP_DOT3_MAU_100BASETXFD : LLDP_DOT3_MAU_100BASETXHD; | |
547 | if (ethc.port == PORT_BNC) | |
548 | port->p_mau_type = (ethc.duplex == DUPLEX_FULL) ? \ | |
549 | LLDP_DOT3_MAU_100BASET2DF : LLDP_DOT3_MAU_100BASET2HD; | |
550 | if (ethc.port == PORT_FIBRE) | |
551 | port->p_mau_type = (ethc.duplex == DUPLEX_FULL) ? \ | |
552 | LLDP_DOT3_MAU_100BASEFXFD : LLDP_DOT3_MAU_100BASEFXHD; | |
553 | break; | |
554 | case SPEED_1000: | |
555 | port->p_mau_type = (ethc.duplex == DUPLEX_FULL) ? \ | |
556 | LLDP_DOT3_MAU_1000BASETFD : LLDP_DOT3_MAU_1000BASETHD; | |
557 | if (ethc.port == PORT_FIBRE) | |
558 | port->p_mau_type = (ethc.duplex == DUPLEX_FULL) ? \ | |
559 | LLDP_DOT3_MAU_1000BASEXFD : LLDP_DOT3_MAU_1000BASEXHD; | |
560 | break; | |
561 | case SPEED_10000: | |
562 | port->p_mau_type = (ethc.port == PORT_FIBRE) ? \ | |
563 | LLDP_DOT3_MAU_10GIGBASEX : LLDP_DOT3_MAU_10GIGBASER; | |
564 | break; | |
565 | } | |
566 | if (ethc.port == PORT_AUI) port->p_mau_type = LLDP_DOT3_MAU_AUI; | |
567 | } | |
568 | #endif | |
569 | } | |
570 | ||
571 | static void | |
572 | iface_mtu(struct lldpd *cfg, struct lldpd_hardware *hardware) | |
573 | { | |
574 | struct ifreq ifr; | |
575 | ||
576 | /* get MTU */ | |
577 | memset(&ifr, 0, sizeof(ifr)); | |
578 | strlcpy(ifr.ifr_name, hardware->h_ifname, sizeof(ifr.ifr_name)); | |
579 | if (ioctl(cfg->g_sock, SIOCGIFMTU, (char*)&ifr) == -1) { | |
580 | LLOG_WARN("unable to get MTU of %s, using 1500", hardware->h_ifname); | |
581 | hardware->h_mtu = 1500; | |
582 | } else | |
77c4d9d0 | 583 | hardware->h_mtu = ifr.ifr_mtu; |
6e75df87 VB |
584 | } |
585 | ||
586 | static void | |
587 | iface_multicast(struct lldpd *cfg, const char *name, int remove) | |
588 | { | |
589 | int i, rc; | |
590 | ||
591 | for (i=0; cfg->g_protocols[i].mode != 0; i++) { | |
592 | if (!cfg->g_protocols[i].enabled) continue; | |
593 | if ((rc = priv_iface_multicast(name, | |
594 | cfg->g_protocols[i].mac, !remove)) != 0) { | |
595 | errno = rc; | |
596 | if (errno != ENOENT) | |
597 | LLOG_INFO("unable to %s %s address to multicast filter for %s", | |
598 | (remove)?"delete":"add", | |
599 | cfg->g_protocols[i].name, | |
600 | name); | |
601 | } | |
602 | } | |
603 | } | |
604 | ||
6a2fa591 VB |
605 | static void |
606 | iface_fds_close(struct lldpd *cfg, struct lldpd_hardware *hardware) | |
607 | { | |
608 | int i; | |
bc598c23 | 609 | for (i=0; i < LLDPD_FD_SETSIZE; i++) |
6a2fa591 VB |
610 | if (FD_ISSET(i, &hardware->h_recvfds)) { |
611 | FD_CLR(i, &hardware->h_recvfds); | |
612 | close(i); | |
613 | } | |
614 | } | |
615 | ||
616 | ||
6e75df87 VB |
617 | static int |
618 | iface_eth_init(struct lldpd *cfg, struct lldpd_hardware *hardware) | |
619 | { | |
849954d7 | 620 | int fd, status; |
6e75df87 | 621 | |
849954d7 VB |
622 | if ((fd = priv_iface_init(hardware->h_ifname)) == -1) |
623 | return -1; | |
624 | hardware->h_sendfd = fd; | |
6e75df87 VB |
625 | |
626 | /* fd to receive is the same as fd to send */ | |
849954d7 | 627 | FD_SET(fd, &hardware->h_recvfds); |
6e75df87 VB |
628 | |
629 | /* Set filter */ | |
6a2fa591 | 630 | if ((status = iface_set_filter(hardware->h_ifname, fd)) != 0) { |
849954d7 VB |
631 | close(fd); |
632 | return status; | |
6e75df87 VB |
633 | } |
634 | ||
635 | iface_multicast(cfg, hardware->h_ifname, 0); | |
636 | ||
637 | LLOG_DEBUG("interface %s initialized (fd=%d)", hardware->h_ifname, | |
849954d7 | 638 | fd); |
6e75df87 VB |
639 | return 0; |
640 | } | |
641 | ||
642 | static int | |
643 | iface_eth_send(struct lldpd *cfg, struct lldpd_hardware *hardware, | |
644 | char *buffer, size_t size) | |
645 | { | |
646 | return write(hardware->h_sendfd, | |
647 | buffer, size); | |
648 | } | |
649 | ||
650 | static int | |
651 | iface_eth_recv(struct lldpd *cfg, struct lldpd_hardware *hardware, | |
652 | int fd, char *buffer, size_t size) | |
653 | { | |
654 | int n; | |
655 | struct sockaddr_ll from; | |
656 | socklen_t fromlen; | |
657 | ||
658 | fromlen = sizeof(from); | |
659 | if ((n = recvfrom(fd, | |
660 | buffer, | |
661 | size, 0, | |
662 | (struct sockaddr *)&from, | |
663 | &fromlen)) == -1) { | |
664 | LLOG_WARN("error while receiving frame on %s", | |
665 | hardware->h_ifname); | |
666 | hardware->h_rx_discarded_cnt++; | |
667 | return -1; | |
668 | } | |
669 | if (from.sll_pkttype == PACKET_OUTGOING) | |
670 | return -1; | |
671 | return n; | |
672 | } | |
673 | ||
674 | static int | |
675 | iface_eth_close(struct lldpd *cfg, struct lldpd_hardware *hardware) | |
676 | { | |
677 | close(hardware->h_sendfd); | |
678 | iface_multicast(cfg, hardware->h_ifname, 1); | |
679 | return 0; | |
680 | } | |
681 | ||
682 | void | |
683 | lldpd_ifh_eth(struct lldpd *cfg, struct ifaddrs *ifap) | |
684 | { | |
685 | struct ifaddrs *ifa; | |
6e75df87 VB |
686 | struct lldpd_hardware *hardware; |
687 | struct lldpd_port *port; | |
6e75df87 VB |
688 | |
689 | for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) { | |
849954d7 | 690 | if (!iface_minimal_checks(cfg, ifa)) |
6e75df87 VB |
691 | continue; |
692 | ||
44002d66 VB |
693 | if ((hardware = lldpd_get_hardware(cfg, |
694 | ifa->ifa_name, | |
695 | if_nametoindex(ifa->ifa_name), | |
696 | ð_ops)) == NULL) { | |
6e75df87 VB |
697 | if ((hardware = lldpd_alloc_hardware(cfg, |
698 | ifa->ifa_name)) == NULL) { | |
699 | LLOG_WARNX("Unable to allocate space for %s", | |
700 | ifa->ifa_name); | |
701 | continue; | |
702 | } | |
703 | if (iface_eth_init(cfg, hardware) != 0) { | |
704 | LLOG_WARN("unable to initialize %s", hardware->h_ifname); | |
705 | lldpd_hardware_cleanup(cfg, hardware); | |
706 | continue; | |
707 | } | |
708 | hardware->h_ops = ð_ops; | |
44002d66 | 709 | hardware->h_ifindex = if_nametoindex(ifa->ifa_name); |
6e75df87 | 710 | TAILQ_INSERT_TAIL(&cfg->g_hardware, hardware, h_entries); |
cfe00f7f VB |
711 | } else { |
712 | if (hardware->h_flags) continue; /* Already seen this time */ | |
9898ac07 | 713 | lldpd_port_cleanup(cfg, &hardware->h_lport, 0); |
cfe00f7f | 714 | } |
6e75df87 VB |
715 | |
716 | port = &hardware->h_lport; | |
717 | hardware->h_flags = ifa->ifa_flags; /* Should be non-zero */ | |
718 | ifa->ifa_flags = 0; /* Future handlers | |
719 | don't have to | |
720 | care about this | |
721 | interface. */ | |
722 | ||
723 | /* Get local address */ | |
06db3608 VB |
724 | memcpy(&hardware->h_lladdr, |
725 | (u_int8_t*)((u_int8_t*)ifa->ifa_addr + | |
726 | offsetof(struct sockaddr_ll, sll_addr)), | |
727 | sizeof(hardware->h_lladdr)); | |
6e75df87 | 728 | |
36bd79e3 VB |
729 | /* Fill information about port */ |
730 | iface_port_name_desc(hardware); | |
6e75df87 VB |
731 | |
732 | /* Fill additional info */ | |
733 | iface_macphy(hardware); | |
734 | iface_mtu(cfg, hardware); | |
735 | } | |
736 | } | |
737 | ||
849954d7 VB |
738 | static int |
739 | iface_bond_init(struct lldpd *cfg, struct lldpd_hardware *hardware) | |
740 | { | |
741 | char *mastername = (char *)hardware->h_data; /* Master name */ | |
742 | int fd, status; | |
743 | int un = 1; | |
744 | ||
745 | if (!mastername) return -1; | |
746 | ||
747 | /* First, we get a socket to the raw physical interface */ | |
748 | if ((fd = priv_iface_init(hardware->h_ifname)) == -1) | |
749 | return -1; | |
750 | hardware->h_sendfd = fd; | |
751 | FD_SET(fd, &hardware->h_recvfds); | |
6a2fa591 | 752 | if ((status = iface_set_filter(hardware->h_ifname, fd)) != 0) { |
849954d7 VB |
753 | close(fd); |
754 | return status; | |
755 | } | |
756 | iface_multicast(cfg, hardware->h_ifname, 0); | |
757 | ||
758 | /* Then, we open a raw interface for the master */ | |
759 | if ((fd = priv_iface_init(mastername)) == -1) { | |
760 | close(hardware->h_sendfd); | |
761 | return -1; | |
762 | } | |
763 | FD_SET(fd, &hardware->h_recvfds); | |
6a2fa591 | 764 | if ((status = iface_set_filter(mastername, fd)) != 0) { |
849954d7 VB |
765 | close(hardware->h_sendfd); |
766 | close(fd); | |
767 | return status; | |
768 | } | |
769 | /* With bonding and older kernels (< 2.6.27) we need to listen | |
770 | * to bond device. We use setsockopt() PACKET_ORIGDEV to get | |
771 | * physical device instead of bond device (works with >= | |
772 | * 2.6.24). */ | |
773 | if (setsockopt(fd, SOL_PACKET, | |
774 | PACKET_ORIGDEV, &un, sizeof(un)) == -1) { | |
775 | LLOG_DEBUG("[priv]: unable to setsockopt for master bonding device of %s. " | |
776 | "You will get inaccurate results", | |
777 | hardware->h_ifname); | |
778 | } | |
779 | iface_multicast(cfg, mastername, 0); | |
780 | ||
781 | LLOG_DEBUG("interface %s initialized (fd=%d,master=%s[%d])", | |
782 | hardware->h_ifname, | |
783 | hardware->h_sendfd, | |
784 | mastername, fd); | |
785 | return 0; | |
786 | } | |
787 | ||
788 | static int | |
789 | iface_bond_send(struct lldpd *cfg, struct lldpd_hardware *hardware, | |
790 | char *buffer, size_t size) | |
791 | { | |
792 | /* With bonds, we have duplicate MAC address on different physical | |
793 | * interfaces. We need to alter the source MAC address when we send on | |
794 | * an inactive slave. */ | |
795 | char *master = (char*)hardware->h_data; | |
796 | int active; | |
797 | if (!iface_is_bond_slave(cfg, hardware->h_ifname, master, &active)) { | |
798 | LLOG_WARNX("%s seems to not be enslaved anymore?", | |
799 | hardware->h_ifname); | |
800 | return 0; | |
801 | } | |
802 | if (active) { | |
803 | /* We need to modify the source MAC address */ | |
804 | if (size < 2 * ETH_ALEN) { | |
805 | LLOG_WARNX("packet to send on %s is too small!", | |
806 | hardware->h_ifname); | |
807 | return 0; | |
808 | } | |
809 | memset(buffer + ETH_ALEN, 0, ETH_ALEN); | |
810 | } | |
811 | return write(hardware->h_sendfd, | |
812 | buffer, size); | |
813 | } | |
814 | ||
815 | static int | |
816 | iface_bond_recv(struct lldpd *cfg, struct lldpd_hardware *hardware, | |
817 | int fd, char *buffer, size_t size) | |
818 | { | |
819 | int n; | |
820 | struct sockaddr_ll from; | |
821 | socklen_t fromlen; | |
822 | ||
823 | fromlen = sizeof(from); | |
824 | if ((n = recvfrom(fd, buffer, size, 0, | |
825 | (struct sockaddr *)&from, | |
826 | &fromlen)) == -1) { | |
827 | LLOG_WARN("error while receiving frame on %s", | |
828 | hardware->h_ifname); | |
829 | hardware->h_rx_discarded_cnt++; | |
830 | return -1; | |
831 | } | |
832 | if (from.sll_pkttype == PACKET_OUTGOING) | |
833 | return -1; | |
834 | if (fd == hardware->h_sendfd) | |
835 | /* We received this on the physical interface. */ | |
836 | return n; | |
837 | /* We received this on the bonding interface. Is it really for us? */ | |
44002d66 | 838 | if (from.sll_ifindex == hardware->h_ifindex) |
849954d7 VB |
839 | /* This is for us */ |
840 | return n; | |
841 | if (from.sll_ifindex == if_nametoindex((char*)hardware->h_data)) | |
842 | /* We don't know from which physical interface it comes (kernel | |
843 | * < 2.6.24). In doubt, this is for us. */ | |
844 | return n; | |
845 | return -1; /* Not for us */ | |
846 | } | |
847 | ||
848 | static int | |
849 | iface_bond_close(struct lldpd *cfg, struct lldpd_hardware *hardware) | |
850 | { | |
6a2fa591 | 851 | iface_fds_close(cfg, hardware); /* h_sendfd is here too */ |
849954d7 VB |
852 | iface_multicast(cfg, hardware->h_ifname, 1); |
853 | iface_multicast(cfg, (char*)hardware->h_data, 1); | |
854 | free(hardware->h_data); | |
855 | return 0; | |
856 | } | |
857 | ||
858 | void | |
859 | lldpd_ifh_bond(struct lldpd *cfg, struct ifaddrs *ifap) | |
860 | { | |
861 | struct ifaddrs *ifa; | |
862 | struct lldpd_hardware *hardware; | |
863 | struct lldpd_port *port; | |
864 | int master; | |
865 | for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) { | |
866 | if (!iface_minimal_checks(cfg, ifa)) | |
867 | continue; | |
868 | if ((master = iface_is_enslaved(cfg, ifa->ifa_name)) == -1) | |
869 | continue; | |
870 | ||
44002d66 VB |
871 | if ((hardware = lldpd_get_hardware(cfg, |
872 | ifa->ifa_name, | |
873 | if_nametoindex(ifa->ifa_name), | |
874 | &bond_ops)) == NULL) { | |
849954d7 VB |
875 | if ((hardware = lldpd_alloc_hardware(cfg, |
876 | ifa->ifa_name)) == NULL) { | |
877 | LLOG_WARNX("Unable to allocate space for %s", | |
878 | ifa->ifa_name); | |
879 | continue; | |
880 | } | |
881 | hardware->h_data = (char *)calloc(1, IFNAMSIZ); | |
882 | if_indextoname(master, hardware->h_data); | |
883 | if (iface_bond_init(cfg, hardware) != 0) { | |
884 | LLOG_WARN("unable to initialize %s", | |
885 | hardware->h_ifname); | |
886 | lldpd_hardware_cleanup(cfg, hardware); | |
887 | continue; | |
888 | } | |
889 | hardware->h_ops = &bond_ops; | |
44002d66 | 890 | hardware->h_ifindex = if_nametoindex(ifa->ifa_name); |
849954d7 VB |
891 | TAILQ_INSERT_TAIL(&cfg->g_hardware, hardware, h_entries); |
892 | } else { | |
cfe00f7f | 893 | if (hardware->h_flags) continue; /* Already seen this time */ |
849954d7 VB |
894 | memset(hardware->h_data, 0, IFNAMSIZ); |
895 | if_indextoname(master, hardware->h_data); | |
9898ac07 | 896 | lldpd_port_cleanup(cfg, &hardware->h_lport, 0); |
849954d7 VB |
897 | } |
898 | ||
899 | port = &hardware->h_lport; | |
900 | hardware->h_flags = ifa->ifa_flags; | |
901 | ifa->ifa_flags = 0; | |
902 | ||
903 | /* Get local address */ | |
904 | iface_get_permanent_mac(cfg, hardware); | |
905 | ||
36bd79e3 VB |
906 | /* Fill information about port */ |
907 | iface_port_name_desc(hardware); | |
849954d7 VB |
908 | |
909 | /* Fill additional info */ | |
7a008075 | 910 | #ifdef ENABLE_DOT3 |
849954d7 | 911 | port->p_aggregid = master; |
7a008075 | 912 | #endif |
849954d7 VB |
913 | iface_macphy(hardware); |
914 | iface_mtu(cfg, hardware); | |
915 | } | |
916 | } | |
917 | ||
5994b27d VB |
918 | #ifdef ENABLE_DOT1 |
919 | static void | |
920 | iface_append_vlan(struct lldpd *cfg, | |
921 | struct lldpd_hardware *hardware, struct ifaddrs *ifa) | |
922 | { | |
923 | struct lldpd_port *port = &hardware->h_lport; | |
924 | struct lldpd_vlan *vlan; | |
925 | struct vlan_ioctl_args ifv; | |
926 | ||
cfe00f7f VB |
927 | /* Check if the VLAN is already here. */ |
928 | TAILQ_FOREACH(vlan, &port->p_vlans, v_entries) | |
929 | if (strncmp(ifa->ifa_name, vlan->v_name, IFNAMSIZ) == 0) | |
930 | return; | |
5994b27d VB |
931 | if ((vlan = (struct lldpd_vlan *) |
932 | calloc(1, sizeof(struct lldpd_vlan))) == NULL) | |
933 | return; | |
934 | if ((vlan->v_name = strdup(ifa->ifa_name)) == NULL) { | |
935 | free(vlan); | |
936 | return; | |
937 | } | |
938 | memset(&ifv, 0, sizeof(ifv)); | |
939 | ifv.cmd = GET_VLAN_VID_CMD; | |
940 | strlcpy(ifv.device1, ifa->ifa_name, sizeof(ifv.device1)); | |
941 | if (ioctl(cfg->g_sock, SIOCGIFVLAN, &ifv) < 0) { | |
942 | /* Dunno what happened */ | |
943 | free(vlan->v_name); | |
944 | free(vlan); | |
6a2fa591 | 945 | return; |
5994b27d | 946 | } |
6a2fa591 VB |
947 | vlan->v_vid = ifv.u.VID; |
948 | TAILQ_INSERT_TAIL(&port->p_vlans, vlan, v_entries); | |
5994b27d VB |
949 | } |
950 | ||
6e75df87 VB |
951 | void |
952 | lldpd_ifh_vlan(struct lldpd *cfg, struct ifaddrs *ifap) | |
953 | { | |
6e75df87 | 954 | struct ifaddrs *ifa; |
6e75df87 VB |
955 | struct vlan_ioctl_args ifv; |
956 | struct lldpd_hardware *hardware; | |
6a2fa591 | 957 | |
6e75df87 VB |
958 | for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) { |
959 | if (!ifa->ifa_flags) | |
960 | continue; | |
961 | if (!iface_is_vlan(cfg, ifa->ifa_name)) | |
962 | continue; | |
963 | ||
964 | /* We need to find the physical interfaces of this | |
965 | vlan, through bonds and bridges. */ | |
966 | memset(&ifv, 0, sizeof(ifv)); | |
967 | ifv.cmd = GET_VLAN_REALDEV_NAME_CMD; | |
968 | strlcpy(ifv.device1, ifa->ifa_name, sizeof(ifv.device1)); | |
969 | if (ioctl(cfg->g_sock, SIOCGIFVLAN, &ifv) >= 0) { | |
970 | /* Three cases: | |
971 | 1. we get a real device | |
972 | 2. we get a bond | |
973 | 3. we get a bridge | |
974 | */ | |
975 | if ((hardware = lldpd_get_hardware(cfg, | |
44002d66 VB |
976 | ifv.u.device2, |
977 | if_nametoindex(ifv.u.device2), | |
978 | NULL)) == NULL) { | |
6e75df87 VB |
979 | if (iface_is_bond(cfg, ifv.u.device2)) { |
980 | TAILQ_FOREACH(hardware, &cfg->g_hardware, | |
981 | h_entries) | |
982 | if (iface_is_bond_slave(cfg, | |
983 | hardware->h_ifname, | |
984 | ifv.u.device2, NULL)) | |
5994b27d VB |
985 | iface_append_vlan(cfg, |
986 | hardware, ifa); | |
6e75df87 VB |
987 | } else if (iface_is_bridge(cfg, ifv.u.device2)) { |
988 | TAILQ_FOREACH(hardware, &cfg->g_hardware, | |
989 | h_entries) | |
990 | if (iface_is_bridged_to(cfg, | |
991 | hardware->h_ifname, | |
992 | ifv.u.device2)) | |
5994b27d VB |
993 | iface_append_vlan(cfg, |
994 | hardware, ifa); | |
6e75df87 | 995 | } |
5994b27d VB |
996 | } else iface_append_vlan(cfg, |
997 | hardware, ifa); | |
6e75df87 VB |
998 | } |
999 | } | |
6e75df87 | 1000 | } |
5994b27d | 1001 | #endif |
6e75df87 VB |
1002 | |
1003 | /* Find a management address in all available interfaces, even those that were | |
1004 | already handled. This is a special interface handler because it does not | |
1005 | really handle interface related information (management address is attached | |
1006 | to the local chassis). */ | |
1007 | void | |
1008 | lldpd_ifh_mgmt(struct lldpd *cfg, struct ifaddrs *ifap) | |
1009 | { | |
1010 | struct ifaddrs *ifa; | |
06db3608 | 1011 | struct sockaddr_in sa; |
6e75df87 VB |
1012 | |
1013 | if (LOCAL_CHASSIS(cfg)->c_mgmt.s_addr != INADDR_ANY) | |
1014 | return; /* We already have one */ | |
1015 | ||
1016 | for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) { | |
1017 | if ((ifa->ifa_addr != NULL) && | |
1018 | (ifa->ifa_addr->sa_family == AF_INET)) { | |
1019 | /* We have an IPv4 address (IPv6 not handled yet) */ | |
06db3608 VB |
1020 | memcpy(&sa, ifa->ifa_addr, sizeof(struct sockaddr_in)); |
1021 | if ((ntohl(*(u_int32_t*)&sa.sin_addr) != INADDR_LOOPBACK) && | |
6e75df87 VB |
1022 | (cfg->g_mgmt_pattern == NULL)) { |
1023 | memcpy(&LOCAL_CHASSIS(cfg)->c_mgmt, | |
06db3608 | 1024 | &sa.sin_addr, |
6e75df87 VB |
1025 | sizeof(struct in_addr)); |
1026 | LOCAL_CHASSIS(cfg)->c_mgmt_if = if_nametoindex(ifa->ifa_name); | |
1027 | } else if (cfg->g_mgmt_pattern != NULL) { | |
1028 | char *ip; | |
06db3608 | 1029 | ip = inet_ntoa(sa.sin_addr); |
6e75df87 VB |
1030 | if (fnmatch(cfg->g_mgmt_pattern, |
1031 | ip, 0) == 0) { | |
1032 | memcpy(&LOCAL_CHASSIS(cfg)->c_mgmt, | |
06db3608 | 1033 | &sa.sin_addr, |
6e75df87 VB |
1034 | sizeof(struct in_addr)); |
1035 | LOCAL_CHASSIS(cfg)->c_mgmt_if = | |
1036 | if_nametoindex(ifa->ifa_name); | |
1037 | } | |
1038 | } | |
1039 | } | |
1040 | } | |
1041 | } |