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Differential D28487 Diff 83451 sys/netgraph/ng_bridge.c

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sys/netgraph/ng_bridge.c

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struct ng_bridge_private { struct ng_bridge_private {
struct ng_bridge_bucket *tab; /* hash table bucket array */ struct ng_bridge_bucket *tab; /* hash table bucket array */
struct ng_bridge_config conf; /* node configuration */ struct ng_bridge_config conf; /* node configuration */
node_p node; /* netgraph node */ node_p node; /* netgraph node */
u_int numHosts; /* num entries in table */ u_int numHosts; /* num entries in table */
u_int numBuckets; /* num buckets in table */ u_int numBuckets; /* num buckets in table */
u_int hashMask; /* numBuckets - 1 */ u_int hashMask; /* numBuckets - 1 */
int numLinks; /* num connected links */ int numLinks; /* num connected links */
int persistent; /* can exist w/o hooks */ unsigned int persistent : 1, /* can exist w/o hooks */
sendUnknown : 1;/* links receive unknowns by default */
struct callout timer; /* one second periodic timer */ struct callout timer; /* one second periodic timer */
}; };
typedef struct ng_bridge_private *priv_p; typedef struct ng_bridge_private *priv_p;
/* Information about a host, stored in a hash table entry */ /* Information about a host, stored in a hash table entry */
struct ng_bridge_hent { struct ng_bridge_hent {
struct ng_bridge_host host; /* actual host info */ struct ng_bridge_host host; /* actual host info */
SLIST_ENTRY(ng_bridge_hent) next; /* next entry in bucket */ SLIST_ENTRY(ng_bridge_hent) next; /* next entry in bucket */
▲ Show 20 Lines • Show All 187 Lines • ▼ Show 20 Linesng_bridge_constructor(node_p node)
priv->tab = malloc(MIN_BUCKETS * sizeof(*priv->tab), priv->tab = malloc(MIN_BUCKETS * sizeof(*priv->tab),
M_NETGRAPH_BRIDGE, M_WAITOK | M_ZERO); M_NETGRAPH_BRIDGE, M_WAITOK | M_ZERO);
priv->numBuckets = MIN_BUCKETS; priv->numBuckets = MIN_BUCKETS;
priv->hashMask = MIN_BUCKETS - 1; priv->hashMask = MIN_BUCKETS - 1;
priv->conf.debugLevel = 1; priv->conf.debugLevel = 1;
priv->conf.loopTimeout = DEFAULT_LOOP_TIMEOUT; priv->conf.loopTimeout = DEFAULT_LOOP_TIMEOUT;
priv->conf.maxStaleness = DEFAULT_MAX_STALENESS; priv->conf.maxStaleness = DEFAULT_MAX_STALENESS;
priv->conf.minStableAge = DEFAULT_MIN_STABLE_AGE; priv->conf.minStableAge = DEFAULT_MIN_STABLE_AGE;
priv->sendUnknown = 1; /* classic bridge */
/* /*
* This node has all kinds of stuff that could be screwed by SMP. * This node has all kinds of stuff that could be screwed by SMP.
* Until it gets it's own internal protection, we go through in * Until it gets it's own internal protection, we go through in
* single file. This could hurt a machine bridging between two * single file. This could hurt a machine bridging between two
* GB ethernets so it should be fixed. * GB ethernets so it should be fixed.
* When it's fixed the process SHOULD NOT SLEEP, spinlocks please! * When it's fixed the process SHOULD NOT SLEEP, spinlocks please!
* (and atomic ops ) * (and atomic ops )
▲ Show 20 Lines • Show All 46 Lines • ▼ Show 20 Linesng_bridge_newhook(node_p node, hook_p hook, const char *name)
link = malloc(sizeof(*link), M_NETGRAPH_BRIDGE, M_ZERO); link = malloc(sizeof(*link), M_NETGRAPH_BRIDGE, M_ZERO);
if (link == NULL) if (link == NULL)
return (ENOMEM); return (ENOMEM);
link->hook = hook; link->hook = hook;
if (isUplink) { if (isUplink) {
link->learnMac = 0; link->learnMac = 0;
link->sendUnknown = 1; link->sendUnknown = 1;
if (priv->numLinks == 0) /* if the first link is an uplink */
priv->sendUnknown = 0; /* switch to restrictive mode */
} else { } else {
link->learnMac = 1; link->learnMac = 1;
link->sendUnknown = 1; link->sendUnknown = priv->sendUnknown;
} }
NG_HOOK_SET_PRIVATE(hook, link); NG_HOOK_SET_PRIVATE(hook, link);
priv->numLinks++; priv->numLinks++;
return (0); return (0);
} }
/* /*
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