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Show udp hdr too in debug mode

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angt
2015-12-12 13:18:56 +01:00
parent 7cc6d08d7a
commit 05de7b8109
1 changed files with 33 additions and 17 deletions
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50
src/main.c
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@@ -12,6 +12,8 @@
#include <netinet/in.h> #include <netinet/in.h>
#include <netinet/tcp.h> #include <netinet/tcp.h>
#include <netinet/udp.h>
#include <arpa/inet.h> #include <arpa/inet.h>
#include <netdb.h> #include <netdb.h>
@@ -509,27 +511,42 @@ static void gt_print_hdr (uint8_t *data, size_t ip_size, const char *sockname)
gt_log("%s: version=%i size=%zi proto=%zi src=%s dst=%s\n", sockname, ip_version, ip_size, ip_proto, ip_src, ip_dst); gt_log("%s: version=%i size=%zi proto=%zi src=%s dst=%s\n", sockname, ip_version, ip_size, ip_proto, ip_src, ip_dst);
if (ip_hdr_size<=0 || ip_proto!=6) if (ip_hdr_size<=0)
return; return;
struct tcphdr tcp; if (ip_proto==SOL_TCP) {
struct tcphdr tcp;
byte_cpy(&tcp, &data[ip_hdr_size], sizeof(tcp)); byte_cpy(&tcp, &data[ip_hdr_size], sizeof(tcp));
tcp.th_sport = ntohs(tcp.th_sport); tcp.th_sport = ntohs(tcp.th_sport);
tcp.th_dport = ntohs(tcp.th_dport); tcp.th_dport = ntohs(tcp.th_dport);
tcp.th_seq = ntohl(tcp.th_seq); tcp.th_seq = ntohl(tcp.th_seq);
tcp.th_ack = ntohl(tcp.th_ack); tcp.th_ack = ntohl(tcp.th_ack);
tcp.th_win = ntohs(tcp.th_win); tcp.th_win = ntohs(tcp.th_win);
gt_log("%s: tcp src=%i dst=%i seq=%u ack=%u win=%u %c%c%c%c%c%c\n", gt_log("%s: tcp src=%u dst=%u seq=%u ack=%u win=%u %c%c%c%c%c%c\n",
sockname, tcp.th_sport, tcp.th_dport, tcp.th_seq, tcp.th_ack, tcp.th_win, sockname, tcp.th_sport, tcp.th_dport, tcp.th_seq, tcp.th_ack, tcp.th_win,
(tcp.th_flags&TH_FIN) ?'F':'.', (tcp.th_flags&TH_FIN) ?'F':'.',
(tcp.th_flags&TH_SYN) ?'S':'.', (tcp.th_flags&TH_SYN) ?'S':'.',
(tcp.th_flags&TH_RST) ?'R':'.', (tcp.th_flags&TH_RST) ?'R':'.',
(tcp.th_flags&TH_PUSH)?'P':'.', (tcp.th_flags&TH_PUSH)?'P':'.',
(tcp.th_flags&TH_ACK) ?'A':'.', (tcp.th_flags&TH_ACK) ?'A':'.',
(tcp.th_flags&TH_URG) ?'U':'.'); (tcp.th_flags&TH_URG) ?'U':'.');
}
if (ip_proto==SOL_UDP) {
struct udphdr udp;
byte_cpy(&udp, &data[ip_hdr_size], sizeof(udp));
udp.uh_sport = ntohs(udp.uh_sport);
udp.uh_dport = ntohs(udp.uh_dport);
udp.uh_ulen = ntohs(udp.uh_ulen);
gt_log("%s: udp src=%u dst=%u len=%u\n",
sockname, udp.uh_sport, udp.uh_dport, udp.uh_ulen);
}
} }
static int gt_setup_secretkey (struct crypto_ctx *ctx, char *keyfile) static int gt_setup_secretkey (struct crypto_ctx *ctx, char *keyfile)
@@ -939,7 +956,6 @@ int main (int argc, char **argv)
if _0_(debug) if _0_(debug)
gt_print_hdr(data, ip_size, sockname); gt_print_hdr(data, ip_size, sockname);
blks[blk_write++].size = r; blks[blk_write++].size = r;
blk_count++; blk_count++;
} }