From d343b8c554b6a04f6c477841dc4cbb89b5cd1bd9 Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Thu, 4 Jul 2013 16:04:39 +0200 Subject: conntrack: add connlabel format attribute Signed-off-by: Florian Westphal --- conntrack.8 | 4 +++- src/conntrack.c | 17 +++++++++++++---- 2 files changed, 16 insertions(+), 5 deletions(-) diff --git a/conntrack.8 b/conntrack.8 index a411fd4..d80a778 100644 --- a/conntrack.8 +++ b/conntrack.8 @@ -88,11 +88,13 @@ Show the in-kernel connection tracking system statistics. Atomically zero counters after reading them. This option is only valid in combination with the "-L, --dump" command options. .TP -.BI "-o, --output [extended,xml,timestamp,id,ktimestamp] " +.BI "-o, --output [extended,xml,timestamp,id,ktimestamp,labels] " Display output in a certain format. With the extended output option, this tool displays the layer 3 information. With ktimestamp, it displays the in-kernel timestamp available since 2.6.38 (you can enable it via echo 1 > /proc/sys/net/netfilter/nf_conntrack_timestamp). +The labels output option tells conntrack to show the names of connection +tracking labels that might be present. .TP .BI "-e, --event-mask " "[ALL|NEW|UPDATES|DESTROY][,...]" Set the bitmask of events that are to be generated by the in-kernel ctnetlink diff --git a/src/conntrack.c b/src/conntrack.c index d4e79de..61e2fce 100644 --- a/src/conntrack.c +++ b/src/conntrack.c @@ -488,6 +488,7 @@ static unsigned int addr_valid_flags[ADDR_VALID_FLAGS_MAX] = { static LIST_HEAD(proto_list); static unsigned int options; +static struct nfct_labelmap *labelmap; void register_proto(struct ctproto_handler *h) { @@ -731,6 +732,7 @@ enum { _O_TMS = (1 << 2), _O_ID = (1 << 3), _O_KTMS = (1 << 4), + _O_CL = (1 << 5), }; enum { @@ -749,8 +751,8 @@ static struct parse_parameter { { IPS_ASSURED, IPS_SEEN_REPLY, 0, IPS_FIXED_TIMEOUT, IPS_EXPECTED} }, { {"ALL", "NEW", "UPDATES", "DESTROY"}, 4, { CT_EVENT_F_ALL, CT_EVENT_F_NEW, CT_EVENT_F_UPD, CT_EVENT_F_DEL } }, - { {"xml", "extended", "timestamp", "id", "ktimestamp"}, 5, - { _O_XML, _O_EXT, _O_TMS, _O_ID, _O_KTMS }, + { {"xml", "extended", "timestamp", "id", "ktimestamp", "labels", }, 6, + { _O_XML, _O_EXT, _O_TMS, _O_ID, _O_KTMS, _O_CL }, }, }; @@ -1150,7 +1152,7 @@ static int event_cb(enum nf_conntrack_msg_type type, if (output_mask & _O_ID) op_flags |= NFCT_OF_ID; - nfct_snprintf(buf, sizeof(buf), ct, type, op_type, op_flags); + nfct_snprintf_labels(buf, sizeof(buf), ct, type, op_type, op_flags, labelmap); printf("%s\n", buf); fflush(stdout); @@ -1194,7 +1196,7 @@ static int dump_cb(enum nf_conntrack_msg_type type, if (output_mask & _O_ID) op_flags |= NFCT_OF_ID; - nfct_snprintf(buf, sizeof(buf), ct, NFCT_T_UNKNOWN, op_type, op_flags); + nfct_snprintf_labels(buf, sizeof(buf), ct, type, op_type, op_flags, labelmap); printf("%s\n", buf); counter++; @@ -1879,6 +1881,11 @@ int main(int argc, char *argv[]) case 'o': options |= CT_OPT_OUTPUT; parse_parameter(optarg, &output_mask, PARSE_OUTPUT); + if (output_mask & _O_CL) { + labelmap = nfct_labelmap_new(NULL); + if (!labelmap) + perror("nfct_labelmap_new"); + } break; case 'z': options |= CT_OPT_ZERO; @@ -2372,6 +2379,8 @@ try_proc: free_tmpl_objects(); free_options(); + if (labelmap) + nfct_labelmap_destroy(labelmap); if (command && exit_msg[cmd][0]) { fprintf(stderr, "%s v%s (conntrack-tools): ",PROGNAME,VERSION); -- cgit v1.2.3