X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fiptables.c;h=e1694af3475407ae75ba98de73e8b48598e63a56;hb=fd9c88963b04c9e9050a952ba0f018493e8b7638;hp=5fa1f4086a8aa23dd5bfff14e289f0e80845d65c;hpb=09c6d16ffba1b1b15e50579bbcf663f05f630932;p=collectd.git diff --git a/src/iptables.c b/src/iptables.c index 5fa1f408..e1694af3 100644 --- a/src/iptables.c +++ b/src/iptables.c @@ -25,7 +25,9 @@ #include "plugin.h" #include "configfile.h" -#if HAVE_LIBIPTC_LIBIPTC_H +#if OWN_LIBIPTC +# include "libiptc/libiptc.h" +#else # include #endif @@ -105,25 +107,23 @@ static int iptables_config (const char *key, const char *value) table = fields[0]; chain = fields[1]; - table_len = strlen (table); - if (table_len >= sizeof(temp.table)) + table_len = strlen (table) + 1; + if ((unsigned int)table_len > sizeof(temp.table)) { ERROR ("Table `%s' too long.", table); free (value_copy); return (1); } - strncpy (temp.table, table, table_len); - temp.table[table_len] = '\0'; + sstrncpy (temp.table, table, table_len); - chain_len = strlen (chain); - if (chain_len >= sizeof(temp.chain)) + chain_len = strlen (chain) + 1; + if ((unsigned int)chain_len > sizeof(temp.chain)) { ERROR ("Chain `%s' too long.", chain); free (value_copy); return (1); } - strncpy (temp.chain, chain, chain_len); - temp.chain[chain_len] = '\0'; + sstrncpy (temp.chain, chain, chain_len); if (fields_num >= 3) { @@ -152,7 +152,7 @@ static int iptables_config (const char *key, const char *value) } if (fields_num >= 4) - strncpy (temp.name, fields[3], sizeof (temp.name) - 1); + sstrncpy (temp.name, fields[3], sizeof (temp.name)); free (value_copy); value_copy = NULL; @@ -219,34 +219,35 @@ static int submit_match (const struct ipt_entry_match *match, vl.values = values; vl.values_len = 1; vl.time = time (NULL); - strcpy (vl.host, hostname_g); - strcpy (vl.plugin, "iptables"); + sstrncpy (vl.host, hostname_g, sizeof (vl.host)); + sstrncpy (vl.plugin, "iptables", sizeof (vl.plugin)); - status = snprintf (vl.plugin_instance, sizeof (vl.plugin_instance), + status = ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance), "%s-%s", chain->table, chain->chain); - if ((status >= sizeof (vl.plugin_instance)) || (status < 1)) + if ((status < 1) || ((unsigned int)status >= sizeof (vl.plugin_instance))) return (0); if (chain->name[0] != '\0') { - strncpy (vl.type_instance, chain->name, sizeof (vl.type_instance)); + sstrncpy (vl.type_instance, chain->name, sizeof (vl.type_instance)); } else { if (chain->rule_type == RTYPE_NUM) - snprintf (vl.type_instance, sizeof (vl.type_instance), + ssnprintf (vl.type_instance, sizeof (vl.type_instance), "%i", chain->rule.num); else - strncpy (vl.type_instance, (char *) match->data, + sstrncpy (vl.type_instance, (char *) match->data, sizeof (vl.type_instance)); } - vl.type_instance[sizeof (vl.type_instance) - 1] = '\0'; + sstrncpy (vl.type, "ipt_bytes", sizeof (vl.type)); values[0].counter = (counter_t) entry->counters.bcnt; - plugin_dispatch_values ("ipt_bytes", &vl); + plugin_dispatch_values (&vl); + sstrncpy (vl.type, "ipt_packets", sizeof (vl.type)); values[0].counter = (counter_t) entry->counters.pcnt; - plugin_dispatch_values ("ipt_packets", &vl); + plugin_dispatch_values (&vl); return (0); } /* void submit_match */ @@ -284,7 +285,7 @@ static void submit_chain( iptc_handle_t *handle, ip_chain_t *chain ) { static int iptables_read (void) { int i; - static complain_t complaint; + int num_failures = 0; /* Init the iptc handle structure and query the correct table */ for (i = 0; i < chain_num; i++) @@ -295,26 +296,24 @@ static int iptables_read (void) chain = chain_list[i]; if (!chain) { - DEBUG ("chain == NULL"); + DEBUG ("iptables plugin: chain == NULL"); continue; } - handle = iptc_init( chain->table ); + handle = iptc_init (chain->table); if (!handle) { - DEBUG ("iptc_init (%s) failed: %s", chain->table, iptc_strerror (errno)); - plugin_complain (LOG_ERR, &complaint, "iptc_init (%s) failed: %s", + ERROR ("iptables plugin: iptc_init (%s) failed: %s", chain->table, iptc_strerror (errno)); + num_failures++; continue; } - plugin_relief (LOG_INFO, &complaint, "iptc_init (%s) succeeded", - chain->table); submit_chain (&handle, chain); iptc_free (&handle); - } + } /* for (i = 0 .. chain_num) */ - return (0); + return ((num_failures < chain_num) ? 0 : -1); } /* int iptables_read */ static int iptables_shutdown (void)