libnl  1.1
Macros | Functions
Conntrack
Netfilter Netlink

Macros

#define NFNLMSG_CT_TYPE(type)   NFNLMSG_TYPE(NFNL_SUBSYS_CTNETLINK, (type))

Functions

int nfnlmsg_ct_group (struct nlmsghdr *nlh)
struct nfnl_ct * nfnlmsg_ct_parse (struct nlmsghdr *nlh)
int nfnl_ct_dump_request (struct nl_handle *h)

Cache Management

struct nl_cache * nfnl_ct_alloc_cache (struct nl_handle *handle)
 Build a conntrack cache holding all conntrack currently in the kernel.

Detailed Description


Function Documentation

struct nl_cache* nfnl_ct_alloc_cache ( struct nl_handle *  handle)
read
Parameters:
handlenetlink handle

Allocates a new cache, initializes it properly and updates it to contain all conntracks currently in the kernel.

Note:
The caller is responsible for destroying and freeing the cache after using it.
Returns:
The cache or NULL if an error has occured.

Definition at line 407 of file ct.c.

References nl_cache_alloc(), and nl_cache_refill().

{
struct nl_cache *cache;
cache = nl_cache_alloc(&nfnl_ct_ops);
if (!cache)
return NULL;
if (handle && nl_cache_refill(handle, cache) < 0) {
free(cache);
return NULL;
}
return cache;
}