diff options
Diffstat (limited to 'networking/libiproute/rt_names.c')
-rw-r--r-- | networking/libiproute/rt_names.c | 389 |
1 files changed, 389 insertions, 0 deletions
diff --git a/networking/libiproute/rt_names.c b/networking/libiproute/rt_names.c new file mode 100644 index 000000000..2a7d85cdb --- /dev/null +++ b/networking/libiproute/rt_names.c @@ -0,0 +1,389 @@ +/* + * 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 <unistd.h> +#include <syslog.h> +#include <fcntl.h> +#include <string.h> +#include <sys/time.h> +#include <stdint.h> + +static void rtnl_tab_initialize(char *file, 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 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); +} + +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 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 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); +} + +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 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 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); +} + +char * rtnl_rtrealm_n2a(int id, char *buf, int len) +{ + if (id<0 || id>=256) { + snprintf(buf, len, "%d", id); + return buf; + } + if (!rtnl_rtrealm_tab[id]) { + if (!rtnl_rtrealm_init) + rtnl_rtrealm_initialize(); + } + if (rtnl_rtrealm_tab[id]) + return rtnl_rtrealm_tab[id]; + snprintf(buf, len, "%d", id); + return buf; +} + + +int rtnl_rtrealm_a2n(uint32_t *id, char *arg) +{ + static 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 char * rtnl_rttable_tab[256] = { + "unspec", +}; + +static int rtnl_rttable_init; + +static void rtnl_rttable_initialize(void) +{ + rtnl_rttable_init = 1; + rtnl_rttable_tab[255] = "local"; + rtnl_rttable_tab[254] = "main"; + rtnl_tab_initialize("/etc/iproute2/rt_tables", + rtnl_rttable_tab, 256); +} + +char * rtnl_rttable_n2a(int id, char *buf, int len) +{ + if (id<0 || id>=256) { + snprintf(buf, len, "%d", id); + return buf; + } + if (!rtnl_rttable_tab[id]) { + if (!rtnl_rttable_init) + rtnl_rttable_initialize(); + } + if (rtnl_rttable_tab[id]) + return rtnl_rttable_tab[id]; + snprintf(buf, len, "%d", id); + return buf; +} + +int rtnl_rttable_a2n(uint32_t *id, char *arg) +{ + static char *cache = NULL; + static unsigned long res; + char *end; + int i; + + if (cache && strcmp(cache, arg) == 0) { + *id = res; + return 0; + } + + if (!rtnl_rttable_init) + rtnl_rttable_initialize(); + + for (i=0; i<256; i++) { + if (rtnl_rttable_tab[i] && + strcmp(rtnl_rttable_tab[i], arg) == 0) { + cache = rtnl_rttable_tab[i]; + res = i; + *id = res; + return 0; + } + } + + i = strtoul(arg, &end, 0); + if (!end || end == arg || *end || i > 255) + return -1; + *id = i; + return 0; +} + + +static 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); +} + +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 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; +} + |