@@ -403,26 +403,24 @@ static void trace_print_packet(const struct nftnl_trace *nlt, struct cb_arg *arg
case IPPROTO_UDP:
if (len < 4)
break;
- printf("SPORT=%d DPORT=%d ", ntohs(tcph->th_sport), ntohs(tcph->th_dport));
+ printf("SPORT=%d DPORT=%d ", ntohs(tcph->source), ntohs(tcph->dest));
break;
case IPPROTO_TCP:
if (len < sizeof(*tcph))
break;
- printf("SPORT=%d DPORT=%d ", ntohs(tcph->th_sport), ntohs(tcph->th_dport));
- if (tcph->th_flags & (TH_FIN|TH_SYN|TH_RST|TH_PUSH|TH_ACK|TH_URG)) {
- if (tcph->th_flags & TH_SYN)
- printf("SYN ");
- if (tcph->th_flags & TH_ACK)
- printf("ACK ");
- if (tcph->th_flags & TH_FIN)
- printf("FIN ");
- if (tcph->th_flags & TH_RST)
- printf("RST ");
- if (tcph->th_flags & TH_PUSH)
- printf("PSH ");
- if (tcph->th_flags & TH_URG)
- printf("URG ");
- }
+ printf("SPORT=%d DPORT=%d ", ntohs(tcph->source), ntohs(tcph->dest));
+ if (tcph->syn)
+ printf("SYN ");
+ if (tcph->ack)
+ printf("ACK ");
+ if (tcph->fin)
+ printf("FIN ");
+ if (tcph->rst)
+ printf("RST ");
+ if (tcph->psh)
+ printf("PSH ");
+ if (tcph->urg)
+ printf("URG ");
break;
default:
break;
glibc older than 2.19 only expose BSD style fields of struct tcphdr when _BSD_SOURCE is define. Current glibc however, warn that _BSD_SOURCE is deprecated. Migrate to the GNU style of tcphdr fields to make the code compatible with any glibc version. Fix the following build failure: xtables-monitor.c: In function 'trace_print_packet': xtables-monitor.c:406:43: error: 'const struct tcphdr' has no member named 'th_sport' printf("SPORT=%d DPORT=%d ", ntohs(tcph->th_sport), ntohs(tcph->th_dport)); ^ xtables-monitor.c:406:66: error: 'const struct tcphdr' has no member named 'th_dport' printf("SPORT=%d DPORT=%d ", ntohs(tcph->th_sport), ntohs(tcph->th_dport)); ^ ... Cc: Florian Westphal <fw@strlen.de> Signed-off-by: Baruch Siach <baruch@tkos.co.il> --- v2: Use GNU tcphdr fields Note: build tested only. --- iptables/xtables-monitor.c | 30 ++++++++++++++---------------- 1 file changed, 14 insertions(+), 16 deletions(-)