]>
Commit | Line | Data |
---|---|---|
718e3744 | 1 | /* |
2 | * Get interface's address and mask information by sysctl() function. | |
3 | * Copyright (C) 1997, 98 Kunihiro Ishiguro | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra 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. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
19 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | * 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "if.h" | |
26 | #include "sockunion.h" | |
27 | #include "prefix.h" | |
28 | #include "connected.h" | |
29 | #include "memory.h" | |
4a1ab8e4 | 30 | #include "zebra_memory.h" |
718e3744 | 31 | #include "ioctl.h" |
32 | #include "log.h" | |
8f7d9fc0 FL |
33 | #include "interface.h" |
34 | #include "vrf.h" | |
718e3744 | 35 | |
ec1a4283 | 36 | #include "zebra/rt.h" |
37 | #include "zebra/kernel_socket.h" | |
8f7d9fc0 | 38 | #include "zebra/rib.h" |
ec1a4283 | 39 | |
f28b0e57 PJ |
40 | void |
41 | ifstat_update_sysctl (void) | |
718e3744 | 42 | { |
43 | caddr_t ref, buf, end; | |
44 | size_t bufsiz; | |
45 | struct if_msghdr *ifm; | |
46 | struct interface *ifp; | |
47 | ||
48 | #define MIBSIZ 6 | |
49 | int mib[MIBSIZ] = | |
50 | { | |
51 | CTL_NET, | |
52 | PF_ROUTE, | |
53 | 0, | |
54 | 0, /* AF_INET & AF_INET6 */ | |
55 | NET_RT_IFLIST, | |
56 | 0 | |
57 | }; | |
58 | ||
59 | /* Query buffer size. */ | |
60 | if (sysctl (mib, MIBSIZ, NULL, &bufsiz, NULL, 0) < 0) | |
61 | { | |
6099b3b5 | 62 | zlog_warn ("sysctl() error by %s", safe_strerror (errno)); |
f28b0e57 | 63 | return; |
718e3744 | 64 | } |
65 | ||
66 | /* We free this memory at the end of this function. */ | |
67 | ref = buf = XMALLOC (MTYPE_TMP, bufsiz); | |
68 | ||
69 | /* Fetch interface informations into allocated buffer. */ | |
70 | if (sysctl (mib, MIBSIZ, buf, &bufsiz, NULL, 0) < 0) | |
71 | { | |
6099b3b5 | 72 | zlog (NULL, LOG_WARNING, "sysctl error by %s", safe_strerror (errno)); |
495f0b13 | 73 | XFREE(MTYPE_TMP, ref); |
f28b0e57 | 74 | return; |
718e3744 | 75 | } |
76 | ||
77 | /* Parse both interfaces and addresses. */ | |
78 | for (end = buf + bufsiz; buf < end; buf += ifm->ifm_msglen) | |
79 | { | |
80 | ifm = (struct if_msghdr *) buf; | |
81 | if (ifm->ifm_type == RTM_IFINFO) | |
82 | { | |
83 | ifp = if_lookup_by_index (ifm->ifm_index); | |
84 | if (ifp) | |
85 | ifp->stats = ifm->ifm_data; | |
86 | } | |
87 | } | |
88 | ||
89 | /* Free sysctl buffer. */ | |
90 | XFREE (MTYPE_TMP, ref); | |
91 | ||
f28b0e57 | 92 | return; |
718e3744 | 93 | } |
94 | ||
95 | /* Interface listing up function using sysctl(). */ | |
96 | void | |
12f6fb97 | 97 | interface_list (struct zebra_ns *zns) |
718e3744 | 98 | { |
99 | caddr_t ref, buf, end; | |
100 | size_t bufsiz; | |
101 | struct if_msghdr *ifm; | |
718e3744 | 102 | |
103 | #define MIBSIZ 6 | |
104 | int mib[MIBSIZ] = | |
105 | { | |
106 | CTL_NET, | |
107 | PF_ROUTE, | |
108 | 0, | |
109 | 0, /* AF_INET & AF_INET6 */ | |
110 | NET_RT_IFLIST, | |
111 | 0 | |
112 | }; | |
113 | ||
12f6fb97 | 114 | if (zns->ns_id != NS_DEFAULT) |
8f7d9fc0 | 115 | { |
12f6fb97 | 116 | zlog_warn ("interface_list: ignore NS %u", zns->ns_id); |
8f7d9fc0 FL |
117 | return; |
118 | } | |
119 | ||
718e3744 | 120 | /* Query buffer size. */ |
121 | if (sysctl (mib, MIBSIZ, NULL, &bufsiz, NULL, 0) < 0) | |
122 | { | |
6099b3b5 | 123 | zlog (NULL, LOG_WARNING, "sysctl() error by %s", safe_strerror (errno)); |
718e3744 | 124 | return; |
125 | } | |
126 | ||
127 | /* We free this memory at the end of this function. */ | |
128 | ref = buf = XMALLOC (MTYPE_TMP, bufsiz); | |
129 | ||
130 | /* Fetch interface informations into allocated buffer. */ | |
131 | if (sysctl (mib, MIBSIZ, buf, &bufsiz, NULL, 0) < 0) | |
132 | { | |
6099b3b5 | 133 | zlog (NULL, LOG_WARNING, "sysctl error by %s", safe_strerror (errno)); |
718e3744 | 134 | return; |
135 | } | |
136 | ||
137 | /* Parse both interfaces and addresses. */ | |
138 | for (end = buf + bufsiz; buf < end; buf += ifm->ifm_msglen) | |
139 | { | |
140 | ifm = (struct if_msghdr *) buf; | |
141 | ||
142 | switch (ifm->ifm_type) | |
143 | { | |
144 | case RTM_IFINFO: | |
145 | ifm_read (ifm); | |
146 | break; | |
147 | case RTM_NEWADDR: | |
148 | ifam_read ((struct ifa_msghdr *) ifm); | |
149 | break; | |
150 | default: | |
151 | zlog_info ("interfaces_list(): unexpected message type"); | |
152 | XFREE (MTYPE_TMP, ref); | |
153 | return; | |
154 | break; | |
155 | } | |
156 | } | |
157 | ||
158 | /* Free sysctl buffer. */ | |
159 | XFREE (MTYPE_TMP, ref); | |
160 | } |