/* * netsniff-ng - the packet sniffing beast * Copyright 2009 - 2013 Daniel Borkmann. * Subject to the GPL, version 2. */ #include #include #include "hash.h" #include "xmalloc.h" #include "oui.h" #include "str.h" static struct hash_table oui; static bool initialized = false; struct vendor_id { unsigned int id; char *vendor; struct vendor_id *next; }; const char *lookup_vendor(unsigned int id) { struct vendor_id *v; v = lookup_hash(id, &oui); while (v && id != v->id) v = v->next; return (v && id == v->id ? v->vendor : NULL); } void dissector_init_oui(void) { FILE *fp; char buff[128], *ptr, *end; struct vendor_id *v; void **pos; if (initialized) return; fp = fopen(ETCDIRE_STRING "/oui.conf", "r"); if (!fp) panic("No oui.conf found!\n"); memset(buff, 0, sizeof(buff)); while (fgets(buff, sizeof(buff), fp) != NULL) { buff[sizeof(buff) - 1] = 0; ptr = buff; v = xmalloc(sizeof(*v)); v->id = strtol(ptr, &end, 0); /* not a valid line, skip */ if (v->id == 0 && end == ptr) { xfree(v); continue; } ptr = strstr(buff, ", "); /* likewise */ if (!ptr) { xfree(v); continue; } ptr += strlen(", "); ptr = strtrim_right(ptr, '\n'); ptr = strtrim_right(ptr, ' '); v->vendor = xstrdup(ptr); v->next = NULL; pos = insert_hash(v->id, v, &oui); if (pos) { v->next = *pos; *pos = v; } memset(buff, 0, sizeof(buff)); } fclose(fp); initialized = true; } static int dissector_cleanup_oui_hash(void *ptr) { struct vendor_id *tmp, *v = ptr; if (!ptr) return 0; while ((tmp = v->next)) { xfree(v->vendor); xfree(v); v = tmp; } xfree(v->vendor); xfree(v); return 0; } void dissector_cleanup_oui(void) { if (!initialized) return; for_each_hash(&oui, dissector_cleanup_oui_hash); free_hash(&oui); initialized = false; } next.git/commit/net?id=13b13dd97c3a45857b2b622add06b1c70b748abf'>commitdiff

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author	Sowmini Varadhan <sowmini.varadhan@oracle.com>	2014-10-25 15:12:31 -0400
committer	David S. Miller <davem@davemloft.net>	2014-10-25 16:20:16 -0400
commit	13b13dd97c3a45857b2b622add06b1c70b748abf (patch)
tree	5ebb758c58de5f7755aca98d23a1b34aa48defe4 /net
parent	2a968dd8f7d71ae85c4fe0ff190fbfb4212faf98 (diff)

sunvnet: Remove irqsave/irqrestore on vio.lock

After the NAPIfication of sunvnet, we no longer need to synchronize by doing irqsave/restore on vio.lock in the I/O fastpath. NAPI ->poll() is non-reentrant, so all RX processing occurs strictly in a serialized environment. TX reclaim is done in NAPI context, so the netif_tx_lock can be used to serialize critical sections between Tx and Rx paths. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>

Diffstat (limited to 'net')