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Add two extra functions that basically give count of addresses

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on interface.  Such function could been implemented on top of
the if_foreach_llm?addr(), but several drivers need counting,
so avoid copy-n-paste inside the drivers.
This commit is contained in:
Gleb Smirnoff 2019-10-10 23:44:56 +00:00
parent 826857c833
commit fb3fc771f6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=353420
2 changed files with 36 additions and 0 deletions
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34
sys/net/if.c
View File

@ -4268,6 +4268,23 @@ if_getmtu_family(if_t ifp, int family)
* link level addresses. Driver shall not know 'struct ifaddr' neither
* 'struct ifmultiaddr'.
*/
u_int
if_lladdr_count(if_t ifp)
{
struct epoch_tracker et;
struct ifaddr *ifa;
u_int count;
count = 0;
NET_EPOCH_ENTER(et);
CK_STAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link)
if (ifa->ifa_addr->sa_family == AF_LINK)
count++;
NET_EPOCH_EXIT(et);
return (count);
}
u_int
if_foreach_lladdr(if_t ifp, iflladdr_cb_t cb, void *cb_arg)
{
@ -4290,6 +4307,23 @@ if_foreach_lladdr(if_t ifp, iflladdr_cb_t cb, void *cb_arg)
return (count);
}
u_int
if_llmaddr_count(if_t ifp)
{
struct epoch_tracker et;
struct ifmultiaddr *ifma;
int count;
count = 0;
NET_EPOCH_ENTER(et);
CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
if (ifma->ifma_addr->sa_family == AF_LINK)
count++;
NET_EPOCH_EXIT(et);
return (count);
}
u_int
if_foreach_llmaddr(if_t ifp, iflladdr_cb_t cb, void *cb_arg)
{

2
sys/net/if_var.h
View File

@ -772,6 +772,8 @@ struct sockaddr_dl;
typedef u_int iflladdr_cb_t(void *, struct sockaddr_dl *, u_int);
u_int if_foreach_lladdr(if_t, iflladdr_cb_t, void *);
u_int if_foreach_llmaddr(if_t, iflladdr_cb_t, void *);
u_int if_lladdr_count(if_t);
u_int if_llmaddr_count(if_t);
int if_multiaddr_count(if_t ifp, int max);
/* Obsoleted multicast management functions. */