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1 | /* |
2 | * PBR - main code | |
3 | * Copyright (C) 2018 Cumulus Networks, Inc. | |
4 | * Donald Sharp | |
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 along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | #include <zebra.h> | |
21 | ||
22 | #include <lib/version.h> | |
23 | #include "getopt.h" | |
24 | #include "thread.h" | |
25 | #include "prefix.h" | |
26 | #include "linklist.h" | |
27 | #include "if.h" | |
28 | #include "vector.h" | |
29 | #include "vty.h" | |
30 | #include "command.h" | |
31 | #include "filter.h" | |
32 | #include "plist.h" | |
33 | #include "stream.h" | |
34 | #include "log.h" | |
35 | #include "memory.h" | |
36 | #include "privs.h" | |
37 | #include "sigevent.h" | |
38 | #include "zclient.h" | |
39 | #include "keychain.h" | |
40 | #include "distribute.h" | |
41 | #include "libfrr.h" | |
42 | #include "routemap.h" | |
43 | #include "nexthop.h" | |
44 | #include "nexthop_group.h" | |
45 | ||
46 | #include "pbr_nht.h" | |
47 | #include "pbr_map.h" | |
48 | #include "pbr_zebra.h" | |
49 | #include "pbr_event.h" | |
50 | #include "pbr_vty.h" | |
51 | #include "pbr_debug.h" | |
52 | ||
53 | zebra_capabilities_t _caps_p[] = { | |
54 | ZCAP_NET_RAW, ZCAP_BIND, ZCAP_NET_ADMIN, | |
55 | }; | |
56 | ||
57 | struct zebra_privs_t pbr_privs = { | |
58 | #if defined(FRR_USER) && defined(FRR_GROUP) | |
59 | .user = FRR_USER, | |
60 | .group = FRR_GROUP, | |
61 | #endif | |
62 | #if defined(VTY_GROUP) | |
63 | .vty_group = VTY_GROUP, | |
64 | #endif | |
65 | .caps_p = _caps_p, | |
66 | .cap_num_p = array_size(_caps_p), | |
67 | .cap_num_i = 0}; | |
68 | ||
69 | struct option longopts[] = {{0}}; | |
70 | ||
71 | /* Master of threads. */ | |
72 | struct thread_master *master; | |
73 | ||
74 | /* SIGHUP handler. */ | |
75 | static void sighup(void) | |
76 | { | |
77 | zlog_info("SIGHUP received"); | |
78 | } | |
79 | ||
80 | /* SIGINT / SIGTERM handler. */ | |
81 | static void sigint(void) | |
82 | { | |
83 | zlog_notice("Terminating on signal"); | |
84 | ||
85 | pbr_event_stop(); | |
86 | exit(0); | |
87 | } | |
88 | ||
89 | /* SIGUSR1 handler. */ | |
90 | static void sigusr1(void) | |
91 | { | |
92 | zlog_rotate(); | |
93 | } | |
94 | ||
95 | struct quagga_signal_t pbr_signals[] = { | |
96 | { | |
97 | .signal = SIGHUP, | |
98 | .handler = &sighup, | |
99 | }, | |
100 | { | |
101 | .signal = SIGUSR1, | |
102 | .handler = &sigusr1, | |
103 | }, | |
104 | { | |
105 | .signal = SIGINT, | |
106 | .handler = &sigint, | |
107 | }, | |
108 | { | |
109 | .signal = SIGTERM, | |
110 | .handler = &sigint, | |
111 | }, | |
112 | }; | |
113 | ||
114 | #define PBR_VTY_PORT 2615 | |
115 | ||
116 | FRR_DAEMON_INFO(pbrd, PBR, .vty_port = PBR_VTY_PORT, | |
117 | ||
118 | .proghelp = "Implementation of PBR.", | |
119 | ||
120 | .signals = pbr_signals, | |
121 | .n_signals = array_size(pbr_signals), | |
122 | ||
123 | .privs = &pbr_privs, ) | |
124 | ||
125 | int main(int argc, char **argv, char **envp) | |
126 | { | |
127 | frr_preinit(&pbrd_di, argc, argv); | |
128 | frr_opt_add("", longopts, ""); | |
129 | ||
130 | while (1) { | |
131 | int opt; | |
132 | ||
133 | opt = frr_getopt(argc, argv, NULL); | |
134 | ||
135 | if (opt == EOF) | |
136 | break; | |
137 | ||
138 | switch (opt) { | |
139 | case 0: | |
140 | break; | |
141 | default: | |
142 | frr_help_exit(1); | |
143 | break; | |
144 | } | |
145 | } | |
146 | ||
147 | master = frr_init(); | |
148 | ||
149 | pbr_debug_init(); | |
150 | ||
151 | vrf_init(NULL, NULL, NULL, NULL); | |
152 | nexthop_group_init(pbr_nhgroup_add_cb, | |
153 | pbr_nhgroup_add_nexthop_cb, | |
154 | pbr_nhgroup_del_nexthop_cb, | |
155 | pbr_nhgroup_delete_cb); | |
156 | ||
157 | pbr_event_init(); | |
158 | pbr_nht_init(); | |
159 | pbr_map_init(); | |
160 | pbr_zebra_init(); | |
161 | pbr_vty_init(); | |
162 | ||
163 | frr_config_fork(); | |
164 | frr_run(master); | |
165 | ||
166 | /* Not reached. */ | |
167 | return 0; | |
168 | } |