diff options
Diffstat (limited to 'net/netfilter/nf_log.c')
| -rw-r--r-- | net/netfilter/nf_log.c | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/net/netfilter/nf_log.c b/net/netfilter/nf_log.c index 0b6b2c874199..0b2161c689e0 100644 --- a/net/netfilter/nf_log.c +++ b/net/netfilter/nf_log.c @@ -132,6 +132,41 @@ void nf_log_unbind_pf(struct net *net, u_int8_t pf) } EXPORT_SYMBOL(nf_log_unbind_pf); +int nf_logger_find_get(int pf, enum nf_log_type type) +{ + struct nf_logger *logger; + int ret = -ENOENT; + + logger = loggers[pf][type]; + if (logger == NULL) + request_module("nf-logger-%u-%u", pf, type); + + rcu_read_lock(); + logger = rcu_dereference(loggers[pf][type]); + if (logger == NULL) + goto out; + + if (logger && try_module_get(logger->me)) + ret = 0; +out: + rcu_read_unlock(); + return ret; +} +EXPORT_SYMBOL_GPL(nf_logger_find_get); + +void nf_logger_put(int pf, enum nf_log_type type) +{ + struct nf_logger *logger; + + BUG_ON(loggers[pf][type] == NULL); + + rcu_read_lock(); + logger = rcu_dereference(loggers[pf][type]); + module_put(logger->me); + rcu_read_unlock(); +} +EXPORT_SYMBOL_GPL(nf_logger_put); + void nf_log_packet(struct net *net, u_int8_t pf, unsigned int hooknum, @@ -146,7 +181,11 @@ void nf_log_packet(struct net *net, const struct nf_logger *logger; rcu_read_lock(); - logger = rcu_dereference(net->nf.nf_loggers[pf]); + if (loginfo != NULL) + logger = rcu_dereference(loggers[pf][loginfo->type]); + else + logger = rcu_dereference(net->nf.nf_loggers[pf]); + if (logger) { va_start(args, fmt); vsnprintf(prefix, sizeof(prefix), fmt, args); |