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124 lines
2.5 KiB
124 lines
2.5 KiB
/* |
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* rtm_map.c |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version |
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* 2 of the License, or (at your option) any later version. |
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* |
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* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> |
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* |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <syslog.h> |
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#include <fcntl.h> |
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#include <string.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include "rt_names.h" |
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#include "utils.h" |
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char *rtnl_rtntype_n2a(int id, char *buf, int len) |
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{ |
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switch (id) { |
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case RTN_UNSPEC: |
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return "none"; |
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case RTN_UNICAST: |
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return "unicast"; |
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case RTN_LOCAL: |
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return "local"; |
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case RTN_BROADCAST: |
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return "broadcast"; |
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case RTN_ANYCAST: |
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return "anycast"; |
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case RTN_MULTICAST: |
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return "multicast"; |
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case RTN_BLACKHOLE: |
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return "blackhole"; |
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case RTN_UNREACHABLE: |
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return "unreachable"; |
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case RTN_PROHIBIT: |
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return "prohibit"; |
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case RTN_THROW: |
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return "throw"; |
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case RTN_NAT: |
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return "nat"; |
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case RTN_XRESOLVE: |
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return "xresolve"; |
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default: |
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snprintf(buf, len, "%d", id); |
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return buf; |
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} |
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} |
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int rtnl_rtntype_a2n(int *id, char *arg) |
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{ |
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char *end; |
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unsigned long res; |
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if (strcmp(arg, "local") == 0) |
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res = RTN_LOCAL; |
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else if (strcmp(arg, "nat") == 0) |
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res = RTN_NAT; |
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else if (matches(arg, "broadcast") == 0 || |
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strcmp(arg, "brd") == 0) |
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res = RTN_BROADCAST; |
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else if (matches(arg, "anycast") == 0) |
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res = RTN_ANYCAST; |
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else if (matches(arg, "multicast") == 0) |
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res = RTN_MULTICAST; |
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else if (matches(arg, "prohibit") == 0) |
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res = RTN_PROHIBIT; |
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else if (matches(arg, "unreachable") == 0) |
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res = RTN_UNREACHABLE; |
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else if (matches(arg, "blackhole") == 0) |
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res = RTN_BLACKHOLE; |
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else if (matches(arg, "xresolve") == 0) |
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res = RTN_XRESOLVE; |
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else if (matches(arg, "unicast") == 0) |
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res = RTN_UNICAST; |
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else if (strcmp(arg, "throw") == 0) |
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res = RTN_THROW; |
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else { |
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res = strtoul(arg, &end, 0); |
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if (!end || end == arg || *end || res > 255) |
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return -1; |
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} |
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*id = res; |
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return 0; |
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} |
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static int get_rt_realms(__u32 *realms, char *arg) |
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{ |
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__u32 realm = 0; |
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char *p = strchr(arg, '/'); |
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*realms = 0; |
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if (p) { |
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*p = 0; |
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if (rtnl_rtrealm_a2n(realms, arg)) { |
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*p = '/'; |
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return -1; |
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} |
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*realms <<= 16; |
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*p = '/'; |
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arg = p+1; |
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} |
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if (*arg && rtnl_rtrealm_a2n(&realm, arg)) |
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return -1; |
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*realms |= realm; |
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return 0; |
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} |
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int get_rt_realms_or_raw(__u32 *realms, char *arg) |
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{ |
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if (!get_rt_realms(realms, arg)) |
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return 0; |
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return get_unsigned(realms, arg, 0); |
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}
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