libnl  3.4.0
nl-addr-delete.c
1 /*
2  * src/nl-addr-delete.c Delete addresses
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation version 2 of the License.
7  *
8  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
9  */
10 
11 #include <netlink/cli/utils.h>
12 #include <netlink/cli/addr.h>
13 #include <netlink/cli/link.h>
14 
15 #include <linux/netlink.h>
16 
17 static struct nl_sock *sock;
18 static int interactive = 0, default_yes = 0, quiet = 0;
19 static int deleted = 0;
20 
21 static void print_usage(void)
22 {
23  printf(
24 "Usage: nl-addr-delete [OPTION]... [ADDRESS]\n"
25 "\n"
26 "Options\n"
27 " -i, --interactive Run interactively.\n"
28 " --yes Set default answer to yes.\n"
29 " -q, --quiet Do not print informal notifications.\n"
30 " -h, --help Show this help.\n"
31 " -v, --version Show versioning information.\n"
32 "\n"
33 "Address Options\n"
34 " -a, --local=ADDR Local address.\n"
35 " -d, --dev=DEV Associated network device.\n"
36 " --family=FAMILY Family of local address.\n"
37 " --label=STRING Address label (IPv4).\n"
38 " --peer=ADDR Peer address (IPv4).\n"
39 " --scope=SCOPE Address scope (IPv4).\n"
40 " --broadcast=ADDR Broadcast address of network (IPv4).\n"
41 " --valid-lifetime=TS Valid lifetime before route expires (IPv6).\n"
42 " --preferred=TIME Preferred lifetime (IPv6).\n"
43 " --valid=TIME Valid lifetime (IPv6).\n"
44  );
45 
46  exit(0);
47 }
48 
49 static void delete_cb(struct nl_object *obj, void *arg)
50 {
51  struct rtnl_addr *addr = nl_object_priv(obj);
52  struct nl_dump_params params = {
54  .dp_fd = stdout,
55  };
56  int err;
57 
58  if (interactive && !nl_cli_confirm(obj, &params, default_yes))
59  return;
60 
61  if ((err = rtnl_addr_delete(sock, addr, 0)) < 0)
62  nl_cli_fatal(err, "Unable to delete address: %s\n",
63  nl_geterror(err));
64 
65  if (!quiet) {
66  printf("Deleted ");
67  nl_object_dump(obj, &params);
68  }
69 
70  deleted++;
71 }
72 
73 int main(int argc, char *argv[])
74 {
75  struct rtnl_addr *addr;
76  struct nl_cache *link_cache, *addr_cache;
77 
78  sock = nl_cli_alloc_socket();
79  nl_cli_connect(sock, NETLINK_ROUTE);
80  link_cache = nl_cli_link_alloc_cache(sock);
81  addr_cache = nl_cli_addr_alloc_cache(sock);
82  addr = nl_cli_addr_alloc();
83 
84  for (;;) {
85  int c, optidx = 0;
86  enum {
87  ARG_FAMILY = 257,
88  ARG_LABEL = 258,
89  ARG_YES,
90  ARG_PEER,
91  ARG_SCOPE,
92  ARG_BROADCAST,
93  ARG_PREFERRED,
94  ARG_VALID,
95  };
96  static struct option long_opts[] = {
97  { "interactive", 0, 0, 'i' },
98  { "yes", 0, 0, ARG_YES },
99  { "quiet", 0, 0, 'q' },
100  { "help", 0, 0, 'h' },
101  { "version", 0, 0, 'v' },
102  { "local", 1, 0, 'a' },
103  { "dev", 1, 0, 'd' },
104  { "family", 1, 0, ARG_FAMILY },
105  { "label", 1, 0, ARG_LABEL },
106  { "peer", 1, 0, ARG_PEER },
107  { "scope", 1, 0, ARG_SCOPE },
108  { "broadcast", 1, 0, ARG_BROADCAST },
109  { "preferred", 1, 0, ARG_PREFERRED },
110  { "valid", 1, 0, ARG_VALID },
111  { 0, 0, 0, 0 }
112  };
113 
114  c = getopt_long(argc, argv, "iqhva:d:", long_opts, &optidx);
115  if (c == -1)
116  break;
117 
118  switch (c) {
119  case 'i': interactive = 1; break;
120  case ARG_YES: default_yes = 1; break;
121  case 'q': quiet = 1; break;
122  case 'h': print_usage(); break;
123  case 'v': nl_cli_print_version(); break;
124  case 'a': nl_cli_addr_parse_local(addr, optarg); break;
125  case 'd': nl_cli_addr_parse_dev(addr, link_cache, optarg); break;
126  case ARG_FAMILY: nl_cli_addr_parse_family(addr, optarg); break;
127  case ARG_LABEL: nl_cli_addr_parse_label(addr, optarg); break;
128  case ARG_PEER: nl_cli_addr_parse_peer(addr, optarg); break;
129  case ARG_SCOPE: nl_cli_addr_parse_scope(addr, optarg); break;
130  case ARG_BROADCAST: nl_cli_addr_parse_broadcast(addr, optarg); break;
131  case ARG_PREFERRED: nl_cli_addr_parse_preferred(addr, optarg); break;
132  case ARG_VALID: nl_cli_addr_parse_valid(addr, optarg); break;
133  }
134  }
135 
136  nl_cache_foreach_filter(addr_cache, OBJ_CAST(addr), delete_cb, NULL);
137 
138  if (!quiet)
139  printf("Deleted %d addresses\n", deleted);
140 
141  return 0;
142 }
Dump object briefly on one line.
Definition: types.h:22
enum nl_dump_type dp_type
Specifies the type of dump that is requested.
Definition: types.h:38
void nl_cache_foreach_filter(struct nl_cache *cache, struct nl_object *filter, void(*cb)(struct nl_object *, void *), void *arg)
Call a callback on each element of the cache (filtered).
Definition: cache.c:1282
int rtnl_addr_delete(struct nl_sock *sk, struct rtnl_addr *addr, int flags)
Request deletion of an address.
Definition: addr.c:819
void nl_object_dump(struct nl_object *obj, struct nl_dump_params *params)
Dump this object according to the specified parameters.
Definition: object.c:288
void nl_cli_fatal(int err, const char *fmt,...)
Print error message and quit application.
Definition: utils.c:77
Dumping parameters.
Definition: types.h:33