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e9e2c950 RZ |
1 | /* |
2 | * Linux specific code | |
3 | * | |
4 | * Copyright (C) 2018 Network Device Education Foundation, Inc. ("NetDEF") | |
5 | * | |
6 | * FRR is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * FRR is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with FRR; see the file COPYING. If not, write to the Free | |
18 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | * 02111-1307, USA. | |
20 | */ | |
21 | ||
22 | #include <zebra.h> | |
23 | ||
24 | #ifdef BFD_LINUX | |
25 | ||
e9e2c950 RZ |
26 | #include "bfd.h" |
27 | ||
e9e2c950 RZ |
28 | |
29 | /* | |
30 | * Definitions. | |
31 | */ | |
32 | int ptm_bfd_fetch_ifindex(const char *ifname) | |
33 | { | |
34 | struct ifreq ifr; | |
35 | ||
36 | if (strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)) | |
03e7f088 RZ |
37 | > sizeof(ifr.ifr_name)) |
38 | log_error("interface-to-index: name truncated ('%s' -> '%s')", | |
39 | ifr.ifr_name, ifname); | |
e9e2c950 RZ |
40 | |
41 | if (ioctl(bglobal.bg_shop, SIOCGIFINDEX, &ifr) == -1) { | |
03e7f088 RZ |
42 | log_error("interface-to-index: %s translation failed: %s", |
43 | ifname, strerror(errno)); | |
e9e2c950 RZ |
44 | return -1; |
45 | } | |
46 | ||
47 | return ifr.ifr_ifindex; | |
48 | } | |
49 | ||
50 | void ptm_bfd_fetch_local_mac(const char *ifname, uint8_t *mac) | |
51 | { | |
52 | struct ifreq ifr; | |
53 | ||
54 | if (strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)) | |
03e7f088 RZ |
55 | > sizeof(ifr.ifr_name)) |
56 | log_error("interface-mac: name truncated ('%s' -> '%s')", | |
57 | ifr.ifr_name, ifname); | |
e9e2c950 RZ |
58 | |
59 | if (ioctl(bglobal.bg_shop, SIOCGIFHWADDR, &ifr) == -1) { | |
03e7f088 RZ |
60 | log_error("interface-mac: %s MAC retrieval failed: %s", ifname, |
61 | strerror(errno)); | |
e9e2c950 RZ |
62 | return; |
63 | } | |
64 | ||
65 | memcpy(mac, ifr.ifr_hwaddr.sa_data, ETHERNET_ADDRESS_LENGTH); | |
66 | } | |
67 | ||
68 | ||
69 | /* Was _fetch_portname_from_ifindex() */ | |
70 | void fetch_portname_from_ifindex(int ifindex, char *ifname, size_t ifnamelen) | |
71 | { | |
72 | struct ifreq ifr; | |
73 | ||
74 | ifname[0] = 0; | |
75 | ||
76 | memset(&ifr, 0, sizeof(ifr)); | |
77 | ifr.ifr_ifindex = ifindex; | |
78 | ||
79 | if (ioctl(bglobal.bg_shop, SIOCGIFNAME, &ifr) == -1) { | |
03e7f088 RZ |
80 | log_error("index-to-interface: index %d failure: %s", ifindex, |
81 | strerror(errno)); | |
e9e2c950 RZ |
82 | return; |
83 | } | |
84 | ||
03e7f088 RZ |
85 | if (strlcpy(ifname, ifr.ifr_name, ifnamelen) >= ifnamelen) |
86 | log_debug("index-to-interface: name truncated '%s' -> '%s'", | |
87 | ifr.ifr_name, ifname); | |
e9e2c950 RZ |
88 | } |
89 | ||
e9e2c950 RZ |
90 | int bp_bind_dev(int sd __attribute__((__unused__)), |
91 | const char *dev __attribute__((__unused__))) | |
92 | { | |
93 | /* | |
94 | * TODO: implement this differently. It is not possible to | |
95 | * SO_BINDTODEVICE after the daemon has dropped its privileges. | |
96 | */ | |
97 | #if 0 | |
98 | size_t devlen = strlen(dev) + 1; | |
99 | ||
100 | if (setsockopt(sd, SOL_SOCKET, SO_BINDTODEVICE, dev, devlen) == -1) { | |
101 | log_warning("%s: setsockopt(SO_BINDTODEVICE, \"%s\"): %s", | |
102 | __func__, dev, strerror(errno)); | |
103 | return -1; | |
104 | } | |
105 | #endif | |
106 | ||
107 | return 0; | |
108 | } | |
109 | ||
e9e2c950 | 110 | #endif /* BFD_LINUX */ |