]>
Commit | Line | Data |
---|---|---|
12e41d03 | 1 | /* |
896014f4 DL |
2 | * PIM for Quagga |
3 | * Copyright (C) 2008 Everton da Silva Marques | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License along | |
16 | * with this program; see the file COPYING; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | */ | |
12e41d03 | 19 | |
8f500a1c RW |
20 | #include <zebra.h> |
21 | ||
12e41d03 DL |
22 | #include <stdlib.h> |
23 | #include <stdio.h> | |
24 | #include <errno.h> | |
25 | #include <string.h> | |
26 | #include <unistd.h> | |
27 | #include <sys/types.h> | |
28 | #include <sys/socket.h> | |
29 | #include <net/if.h> | |
30 | #include <arpa/inet.h> | |
31 | ||
b892f1dd | 32 | #include "if.h" |
12e41d03 DL |
33 | #include "pim_igmp_join.h" |
34 | ||
35 | const char *prog_name = 0; | |
36 | ||
37 | static int iface_solve_index(const char *ifname) | |
38 | { | |
39 | struct if_nameindex *ini; | |
b892f1dd | 40 | ifindex_t ifindex = -1; |
12e41d03 DL |
41 | int i; |
42 | ||
43 | if (!ifname) | |
44 | return -1; | |
45 | ||
46 | ini = if_nameindex(); | |
47 | if (!ini) { | |
48 | int err = errno; | |
49 | fprintf(stderr, | |
50 | "%s: interface=%s: failure solving index: errno=%d: %s\n", | |
51 | prog_name, ifname, err, strerror(err)); | |
52 | errno = err; | |
53 | return -1; | |
54 | } | |
55 | ||
56 | for (i = 0; ini[i].if_index; ++i) { | |
57 | #if 0 | |
58 | fprintf(stderr, | |
59 | "%s: interface=%s matching against local ifname=%s ifindex=%d\n", | |
60 | prog_name, ifname, ini[i].if_name, ini[i].if_index); | |
61 | #endif | |
62 | if (!strcmp(ini[i].if_name, ifname)) { | |
63 | ifindex = ini[i].if_index; | |
64 | break; | |
65 | } | |
66 | } | |
67 | ||
68 | if_freenameindex(ini); | |
69 | ||
70 | return ifindex; | |
71 | } | |
72 | ||
73 | int main(int argc, const char *argv[]) | |
74 | { | |
75 | struct in_addr group_addr; | |
76 | struct in_addr source_addr; | |
77 | const char *ifname; | |
78 | const char *group; | |
79 | const char *source; | |
b892f1dd | 80 | ifindex_t ifindex; |
12e41d03 DL |
81 | int result; |
82 | int fd; | |
83 | ||
84 | prog_name = argv[0]; | |
85 | ||
86 | fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); | |
87 | if (fd < 0) { | |
88 | fprintf(stderr, | |
89 | "%s: could not create socket: socket(): errno=%d: %s\n", | |
90 | prog_name, errno, strerror(errno)); | |
91 | exit(1); | |
92 | } | |
93 | ||
94 | if (argc != 4) { | |
95 | fprintf(stderr, | |
96 | "usage: %s interface group source\n" | |
97 | "example: %s eth0 232.1.1.1 1.1.1.1\n", | |
98 | prog_name, prog_name); | |
99 | exit(1); | |
100 | } | |
101 | ||
102 | ifname = argv[1]; | |
103 | group = argv[2]; | |
104 | source = argv[3]; | |
105 | ||
106 | ifindex = iface_solve_index(ifname); | |
107 | if (ifindex < 0) { | |
108 | fprintf(stderr, "%s: could not find interface: %s\n", | |
109 | prog_name, ifname); | |
110 | exit(1); | |
111 | } | |
112 | ||
113 | result = inet_pton(AF_INET, group, &group_addr); | |
114 | if (result <= 0) { | |
115 | fprintf(stderr, "%s: bad group address: %s\n", | |
116 | prog_name, group); | |
117 | exit(1); | |
118 | } | |
119 | ||
120 | result = inet_pton(AF_INET, source, &source_addr); | |
121 | if (result <= 0) { | |
122 | fprintf(stderr, "%s: bad source address: %s\n", | |
123 | prog_name, source); | |
124 | exit(1); | |
125 | } | |
126 | ||
127 | result = pim_igmp_join_source(fd, ifindex, group_addr, source_addr); | |
128 | if (result) { | |
129 | fprintf(stderr, | |
130 | "%s: setsockopt(fd=%d) failure for IGMP group %s source %s ifindex %d on interface %s: errno=%d: %s\n", | |
131 | prog_name, fd, group, source, ifindex, ifname, | |
132 | errno, strerror(errno)); | |
133 | exit(1); | |
134 | } | |
135 | ||
136 | printf("%s: joined channel (S,G)=(%s,%s) on interface %s\n", | |
137 | prog_name, source, group, ifname); | |
138 | ||
139 | printf("%s: waiting...\n", prog_name); | |
140 | ||
141 | getchar(); | |
142 | ||
143 | close(fd); | |
144 | ||
145 | printf("%s: left channel (S,G)=(%s,%s) on interface %s\n", | |
146 | prog_name, source, group, ifname); | |
147 | ||
148 | exit(0); | |
149 | } |