/* * netsniff-ng - the packet sniffing beast * Copyright 2009, 2010 Daniel Borkmann. * Copyright 2014, 2015 Tobias Klauser * Subject to the GPL, version 2. */ #include #include #include #include #include "hash.h" #include "str.h" #include "lookup.h" #include "xmalloc.h" static bool lookup_initialized[LT_MAX]; static struct hash_table lookup_tables[LT_MAX]; static const char * const lookup_files[] = { [LT_PORTS_UDP] = ETCDIRE_STRING "/udp.conf", [LT_PORTS_TCP] = ETCDIRE_STRING "/tcp.conf", [LT_ETHERTYPES] = ETCDIRE_STRING "/ether.conf", [LT_OUI] = ETCDIRE_STRING "/oui.conf", }; struct lookup_entry { unsigned int id; char *str; struct lookup_entry *next; }; void lookup_init(enum lookup_type which) { FILE *fp; char buff[128], *ptr, *end; const char *file; struct hash_table *table; struct lookup_entry *p; void **pos; bug_on(which >= LT_MAX); if (lookup_initialized[which]) return; table = &lookup_tables[which]; file = lookup_files[which]; fp = fopen(file, "r"); if (!fp) { fprintf(stderr, "Cannot open %s: %s." "Port name resolution won't be available.\n", file, strerror(errno)); return; } memset(buff, 0, sizeof(buff)); while (fgets(buff, sizeof(buff), fp) != NULL) { buff[sizeof(buff) - 1] = 0; ptr = buff; p = xmalloc(sizeof(*p)); p->id = strtol(ptr, &end, 0); /* not a valid line, skip */ if (p->id == 0 && end == ptr) { xfree(p); continue; } ptr = strstr(buff, ", "); /* likewise */ if (!ptr) { xfree(p); continue; } ptr += strlen(", "); ptr = strtrim_right(ptr, '\n'); ptr = strtrim_right(ptr, ' '); p->str = xstrdup(ptr); p->next = NULL; pos = insert_hash(p->id, p, table); if (pos) { p->next = *pos; *pos = p; } memset(buff, 0, sizeof(buff)); } fclose(fp); lookup_initialized[which] = true; } static int __lookup_cleanup_single(void *ptr) { struct lookup_entry *tmp, *p = ptr; if (!ptr) return 0; while ((tmp = p->next)) { xfree(p->str); xfree(p); p = tmp; } xfree(p->str); xfree(p); return 0; } void lookup_cleanup(enum lookup_type which) { struct hash_table *table; bug_on(which >= LT_MAX); if (!lookup_initialized[which]) return; table = &lookup_tables[which]; for_each_hash(table, __lookup_cleanup_single); free_hash(table); lookup_initialized[which] = false; } static inline const char *__lookup_inline(unsigned int id, struct hash_table *tbl) { struct lookup_entry *entry = lookup_hash(id, tbl); while (entry && id != entry->id) entry = entry->next; return (entry && id == entry->id ? entry->str : NULL); } const char *lookup_ether_type(unsigned int id) { return __lookup_inline(id, &lookup_tables[LT_ETHERTYPES]); } const char *lookup_port_udp(unsigned int id) { return __lookup_inline(id, &lookup_tables[LT_PORTS_UDP]); } const char *lookup_port_tcp(unsigned int id) { return __lookup_inline(id, &lookup_tables[LT_PORTS_TCP]); } const char *lookup_vendor(unsigned int id) { return __lookup_inline(id, &lookup_tables[LT_OUI]); } ' value='nds-private-remove'/>


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drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c

1 files changed, 49 insertions, 31 deletions