| /* |
| * ip.c "ip" utility frontend. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <syslog.h> |
| #include <fcntl.h> |
| #include <sys/socket.h> |
| #include <netinet/in.h> |
| #include <string.h> |
| #include <errno.h> |
| |
| #include "SNAPSHOT.h" |
| #include "utils.h" |
| #include "ip_common.h" |
| |
| int preferred_family = AF_UNSPEC; |
| int show_stats = 0; |
| int show_details = 0; |
| int resolve_hosts = 0; |
| int oneline = 0; |
| int timestamp = 0; |
| char * _SL_ = NULL; |
| char *batch_file = NULL; |
| int force = 0; |
| int max_flush_loops = 10; |
| |
| struct rtnl_handle rth = { .fd = -1 }; |
| |
| static void usage(void) __attribute__((noreturn)); |
| |
| static void usage(void) |
| { |
| fprintf(stderr, |
| "Usage: ip [ OPTIONS ] OBJECT { COMMAND | help }\n" |
| " ip [ -force ] -batch filename\n" |
| "where OBJECT := { link | addr | addrlabel | route | rule | neigh | ntable |\n" |
| " tunnel | tuntap | maddr | mroute | mrule | monitor | xfrm |\n" |
| " netns | l2tp | tcp_metrics }\n" |
| " OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] | -r[esolve] |\n" |
| " -f[amily] { inet | inet6 | ipx | dnet | bridge | link } |\n" |
| " -4 | -6 | -I | -D | -B | -0 |\n" |
| " -l[oops] { maximum-addr-flush-attempts } |\n" |
| " -o[neline] | -t[imestamp] | -b[atch] [filename] |\n" |
| " -rc[vbuf] [size]}\n"); |
| exit(-1); |
| } |
| |
| static int do_help(int argc, char **argv) |
| { |
| usage(); |
| return 0; |
| } |
| |
| static const struct cmd { |
| const char *cmd; |
| int (*func)(int argc, char **argv); |
| } cmds[] = { |
| { "address", do_ipaddr }, |
| { "addrlabel", do_ipaddrlabel }, |
| { "maddress", do_multiaddr }, |
| { "route", do_iproute }, |
| { "rule", do_iprule }, |
| { "neighbor", do_ipneigh }, |
| { "neighbour", do_ipneigh }, |
| { "ntable", do_ipntable }, |
| { "ntbl", do_ipntable }, |
| { "link", do_iplink }, |
| { "l2tp", do_ipl2tp }, |
| { "tunnel", do_iptunnel }, |
| { "tunl", do_iptunnel }, |
| { "tuntap", do_iptuntap }, |
| { "tap", do_iptuntap }, |
| { "tcpmetrics", do_tcp_metrics }, |
| { "tcp_metrics",do_tcp_metrics }, |
| { "monitor", do_ipmonitor }, |
| { "xfrm", do_xfrm }, |
| { "mroute", do_multiroute }, |
| { "mrule", do_multirule }, |
| { "netns", do_netns }, |
| { "netconf", do_ipnetconf }, |
| { "help", do_help }, |
| { 0 } |
| }; |
| |
| static int do_cmd(const char *argv0, int argc, char **argv) |
| { |
| const struct cmd *c; |
| |
| for (c = cmds; c->cmd; ++c) { |
| if (matches(argv0, c->cmd) == 0) { |
| return -(c->func(argc-1, argv+1)); |
| } |
| } |
| |
| fprintf(stderr, "Object \"%s\" is unknown, try \"ip help\".\n", argv0); |
| return EXIT_FAILURE; |
| } |
| |
| static int batch(const char *name) |
| { |
| char *line = NULL; |
| size_t len = 0; |
| int ret = EXIT_SUCCESS; |
| |
| if (name && strcmp(name, "-") != 0) { |
| if (freopen(name, "r", stdin) == NULL) { |
| fprintf(stderr, "Cannot open file \"%s\" for reading: %s\n", |
| name, strerror(errno)); |
| return EXIT_FAILURE; |
| } |
| } |
| |
| if (rtnl_open(&rth, 0) < 0) { |
| fprintf(stderr, "Cannot open rtnetlink\n"); |
| return EXIT_FAILURE; |
| } |
| |
| cmdlineno = 0; |
| while (getcmdline(&line, &len, stdin) != -1) { |
| char *largv[100]; |
| int largc; |
| |
| largc = makeargs(line, largv, 100); |
| if (largc == 0) |
| continue; /* blank line */ |
| |
| if (do_cmd(largv[0], largc, largv)) { |
| fprintf(stderr, "Command failed %s:%d\n", name, cmdlineno); |
| ret = EXIT_FAILURE; |
| if (!force) |
| break; |
| } |
| } |
| if (line) |
| free(line); |
| |
| rtnl_close(&rth); |
| return ret; |
| } |
| |
| |
| int main(int argc, char **argv) |
| { |
| char *basename; |
| |
| basename = strrchr(argv[0], '/'); |
| if (basename == NULL) |
| basename = argv[0]; |
| else |
| basename++; |
| |
| while (argc > 1) { |
| char *opt = argv[1]; |
| if (strcmp(opt,"--") == 0) { |
| argc--; argv++; |
| break; |
| } |
| if (opt[0] != '-') |
| break; |
| if (opt[1] == '-') |
| opt++; |
| if (matches(opt, "-loops") == 0) { |
| argc--; |
| argv++; |
| if (argc <= 1) |
| usage(); |
| max_flush_loops = atoi(argv[1]); |
| } else if (matches(opt, "-family") == 0) { |
| argc--; |
| argv++; |
| if (argc <= 1) |
| usage(); |
| if (strcmp(argv[1], "inet") == 0) |
| preferred_family = AF_INET; |
| else if (strcmp(argv[1], "inet6") == 0) |
| preferred_family = AF_INET6; |
| else if (strcmp(argv[1], "dnet") == 0) |
| preferred_family = AF_DECnet; |
| else if (strcmp(argv[1], "link") == 0) |
| preferred_family = AF_PACKET; |
| else if (strcmp(argv[1], "ipx") == 0) |
| preferred_family = AF_IPX; |
| else if (strcmp(argv[1], "bridge") == 0) |
| preferred_family = AF_BRIDGE; |
| else if (strcmp(argv[1], "help") == 0) |
| usage(); |
| else |
| invarg("invalid protocol family", argv[1]); |
| } else if (strcmp(opt, "-4") == 0) { |
| preferred_family = AF_INET; |
| } else if (strcmp(opt, "-6") == 0) { |
| preferred_family = AF_INET6; |
| } else if (strcmp(opt, "-0") == 0) { |
| preferred_family = AF_PACKET; |
| } else if (strcmp(opt, "-I") == 0) { |
| preferred_family = AF_IPX; |
| } else if (strcmp(opt, "-D") == 0) { |
| preferred_family = AF_DECnet; |
| } else if (strcmp(opt, "-B") == 0) { |
| preferred_family = AF_BRIDGE; |
| } else if (matches(opt, "-stats") == 0 || |
| matches(opt, "-statistics") == 0) { |
| ++show_stats; |
| } else if (matches(opt, "-details") == 0) { |
| ++show_details; |
| } else if (matches(opt, "-resolve") == 0) { |
| ++resolve_hosts; |
| } else if (matches(opt, "-oneline") == 0) { |
| ++oneline; |
| } else if (matches(opt, "-timestamp") == 0) { |
| ++timestamp; |
| #if 0 |
| } else if (matches(opt, "-numeric") == 0) { |
| rtnl_names_numeric++; |
| #endif |
| } else if (matches(opt, "-Version") == 0) { |
| printf("ip utility, iproute2-ss%s\n", SNAPSHOT); |
| exit(0); |
| } else if (matches(opt, "-force") == 0) { |
| ++force; |
| } else if (matches(opt, "-batch") == 0) { |
| argc--; |
| argv++; |
| if (argc <= 1) |
| usage(); |
| batch_file = argv[1]; |
| } else if (matches(opt, "-rcvbuf") == 0) { |
| unsigned int size; |
| |
| argc--; |
| argv++; |
| if (argc <= 1) |
| usage(); |
| if (get_unsigned(&size, argv[1], 0)) { |
| fprintf(stderr, "Invalid rcvbuf size '%s'\n", |
| argv[1]); |
| exit(-1); |
| } |
| rcvbuf = size; |
| } else if (matches(opt, "-help") == 0) { |
| usage(); |
| } else { |
| fprintf(stderr, "Option \"%s\" is unknown, try \"ip -help\".\n", opt); |
| exit(-1); |
| } |
| argc--; argv++; |
| } |
| |
| _SL_ = oneline ? "\\" : "\n" ; |
| |
| if (batch_file) |
| return batch(batch_file); |
| |
| if (rtnl_open(&rth, 0) < 0) |
| exit(1); |
| |
| if (strlen(basename) > 2) |
| return do_cmd(basename+2, argc, argv); |
| |
| if (argc > 1) |
| return do_cmd(argv[1], argc-1, argv+1); |
| |
| rtnl_close(&rth); |
| usage(); |
| } |