/* vi: set sw=4 ts=4: */ /* * rt_names.c rtnetlink names DB. * * 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 <string.h> #include <stdint.h> #include "rt_names.h" static void rtnl_tab_initialize(char *file, const char **tab, int size) { char buf[512]; FILE *fp; fp = fopen(file, "r"); if (!fp) return; while (fgets(buf, sizeof(buf), fp)) { char *p = buf; int id; char namebuf[512]; while (*p == ' ' || *p == '\t') p++; if (*p == '#' || *p == '\n' || *p == 0) continue; if (sscanf(p, "0x%x %s\n", &id, namebuf) != 2 && sscanf(p, "0x%x %s #", &id, namebuf) != 2 && sscanf(p, "%d %s\n", &id, namebuf) != 2 && sscanf(p, "%d %s #", &id, namebuf) != 2) { fprintf(stderr, "Database %s is corrupted at %s\n", file, p); return; } if (id<0 || id>size) continue; tab[id] = strdup(namebuf); } fclose(fp); } static const char * rtnl_rtprot_tab[256] = { "none", "redirect", "kernel", "boot", "static", NULL, NULL, NULL, "gated", "ra", "mrt", "zebra", "bird", }; static int rtnl_rtprot_init; static void rtnl_rtprot_initialize(void) { rtnl_rtprot_init = 1; rtnl_tab_initialize("/etc/iproute2/rt_protos", rtnl_rtprot_tab, 256); } const char * rtnl_rtprot_n2a(int id, char *buf, int len) { if (id<0 || id>=256) { snprintf(buf, len, "%d", id); return buf; } if (!rtnl_rtprot_tab[id]) { if (!rtnl_rtprot_init) rtnl_rtprot_initialize(); } if (rtnl_rtprot_tab[id]) return rtnl_rtprot_tab[id]; snprintf(buf, len, "%d", id); return buf; } int rtnl_rtprot_a2n(uint32_t *id, char *arg) { static const char *cache = NULL; static unsigned long res; char *end; int i; if (cache && strcmp(cache, arg) == 0) { *id = res; return 0; } if (!rtnl_rtprot_init) rtnl_rtprot_initialize(); for (i=0; i<256; i++) { if (rtnl_rtprot_tab[i] && strcmp(rtnl_rtprot_tab[i], arg) == 0) { cache = rtnl_rtprot_tab[i]; res = i; *id = res; return 0; } } res = strtoul(arg, &end, 0); if (!end || end == arg || *end || res > 255) return -1; *id = res; return 0; } static const char * rtnl_rtscope_tab[256] = { "global", }; static int rtnl_rtscope_init; static void rtnl_rtscope_initialize(void) { rtnl_rtscope_init = 1; rtnl_rtscope_tab[255] = "nowhere"; rtnl_rtscope_tab[254] = "host"; rtnl_rtscope_tab[253] = "link"; rtnl_rtscope_tab[200] = "site"; rtnl_tab_initialize("/etc/iproute2/rt_scopes", rtnl_rtscope_tab, 256); } const char * rtnl_rtscope_n2a(int id, char *buf, int len) { if (id<0 || id>=256) { snprintf(buf, len, "%d", id); return buf; } if (!rtnl_rtscope_tab[id]) { if (!rtnl_rtscope_init) rtnl_rtscope_initialize(); } if (rtnl_rtscope_tab[id]) return rtnl_rtscope_tab[id]; snprintf(buf, len, "%d", id); return buf; } int rtnl_rtscope_a2n(uint32_t *id, char *arg) { static const char *cache = NULL; static unsigned long res; char *end; int i; if (cache && strcmp(cache, arg) == 0) { *id = res; return 0; } if (!rtnl_rtscope_init) rtnl_rtscope_initialize(); for (i=0; i<256; i++) { if (rtnl_rtscope_tab[i] && strcmp(rtnl_rtscope_tab[i], arg) == 0) { cache = rtnl_rtscope_tab[i]; res = i; *id = res; return 0; } } res = strtoul(arg, &end, 0); if (!end || end == arg || *end || res > 255) return -1; *id = res; return 0; } static const char * rtnl_rtrealm_tab[256] = { "unknown", }; static int rtnl_rtrealm_init; static void rtnl_rtrealm_initialize(void) { rtnl_rtrealm_init = 1; rtnl_tab_initialize("/etc/iproute2/rt_realms", rtnl_rtrealm_tab, 256); } int rtnl_rtrealm_a2n(uint32_t *id, char *arg) { static const char *cache = NULL; static unsigned long res; char *end; int i; if (cache && strcmp(cache, arg) == 0) { *id = res; return 0; } if (!rtnl_rtrealm_init) rtnl_rtrealm_initialize(); for (i=0; i<256; i++) { if (rtnl_rtrealm_tab[i] && strcmp(rtnl_rtrealm_tab[i], arg) == 0) { cache = rtnl_rtrealm_tab[i]; res = i; *id = res; return 0; } } res = strtoul(arg, &end, 0); if (!end || end == arg || *end || res > 255) return -1; *id = res; return 0; } static const char * rtnl_rtdsfield_tab[256] = { "0", }; static int rtnl_rtdsfield_init; static void rtnl_rtdsfield_initialize(void) { rtnl_rtdsfield_init = 1; rtnl_tab_initialize("/etc/iproute2/rt_dsfield", rtnl_rtdsfield_tab, 256); } const char * rtnl_dsfield_n2a(int id, char *buf, int len) { if (id<0 || id>=256) { snprintf(buf, len, "%d", id); return buf; } if (!rtnl_rtdsfield_tab[id]) { if (!rtnl_rtdsfield_init) rtnl_rtdsfield_initialize(); } if (rtnl_rtdsfield_tab[id]) return rtnl_rtdsfield_tab[id]; snprintf(buf, len, "0x%02x", id); return buf; } int rtnl_dsfield_a2n(uint32_t *id, char *arg) { static const char *cache = NULL; static unsigned long res; char *end; int i; if (cache && strcmp(cache, arg) == 0) { *id = res; return 0; } if (!rtnl_rtdsfield_init) rtnl_rtdsfield_initialize(); for (i=0; i<256; i++) { if (rtnl_rtdsfield_tab[i] && strcmp(rtnl_rtdsfield_tab[i], arg) == 0) { cache = rtnl_rtdsfield_tab[i]; res = i; *id = res; return 0; } } res = strtoul(arg, &end, 16); if (!end || end == arg || *end || res > 255) return -1; *id = res; return 0; }