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--- display.c.orig Sun Aug 23 21:51:48 1998 |
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+++ display.c Fri Dec 6 12:17:55 2002 |
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@@ -54,6 +54,7 @@ |
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static int l_nflag, l_eflag; |
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static int n_entries; |
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static int err_pos; |
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+extern struct t_entry t_mask; /* traffic mask */ |
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|
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void |
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init_display(reinit) |
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@@ -282,6 +284,13 @@ |
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packets_total++; |
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bytes_total += e->bytes; |
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j = page * page_size; |
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+ |
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+ e->src.s_addr &= t_mask.src.s_addr; |
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+ e->dst.s_addr &= t_mask.dst.s_addr; |
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+ e->sport &= t_mask.sport; |
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+ e->dport &= t_mask.dport; |
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+ e->proto &= t_mask.proto; |
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+ |
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for (i = 0; i < n_entry; i++) { |
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if (memcmp(&e->eh, &entries[i].eh, sizeof(e->eh)) == 0 && |
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e->src.s_addr == entries[i].src.s_addr && |
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--- trafshow.c.orig Fri Aug 28 00:15:57 1998 |
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+++ trafshow.c Fri Dec 6 12:34:09 2002 |
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@@ -48,6 +48,7 @@ |
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int pflag = 0; /* don't put the interface into promiscuous mode */ |
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int kflag = 1; /* disable keyboard input checking */ |
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int eflag = 0; /* show ethernet traffic rather than ip */ |
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+struct t_entry t_mask; /* traffic mask */ |
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|
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/* global variables */ |
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char *program_name; /* myself */ |
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@@ -78,6 +79,12 @@ |
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extern int abort_on_misalignment(); |
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extern pcap_handler lookup_if(); |
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|
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+ t_mask.src.s_addr = 0xffffffff; /* all bits valid */ |
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+ t_mask.dst.s_addr = 0xffffffff; /* all bits valid */ |
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+ t_mask.sport = 0xffff; /* all bits valid */ |
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+ t_mask.dport = 0xffff; /* all bits valid */ |
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+ t_mask.proto = 0xffff; /* all bits valid */ |
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+ |
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cnt = -1; |
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device_name = NULL; |
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infile = NULL; |
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@@ -94,7 +87,7 @@ |
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|
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if (abort_on_misalignment(ebuf) < 0) error(0, ebuf); |
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|
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- while ((op = getopt(argc, argv, "c:CefF:i:knNOpr:t:vh?")) != EOF) |
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+ while ((op = getopt(argc, argv, "c:CefF:i:kmnNOpr:t:vh?")) != EOF) |
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switch (op) { |
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case 'C': |
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#ifdef HAVE_SLCURSES |
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@@ -114,6 +121,40 @@ |
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break; |
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case 'k': |
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kflag = 0; |
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+ break; |
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+ case 'm': |
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+ t_mask.src.s_addr = 0; |
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+ t_mask.dst.s_addr = 0; |
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+ t_mask.sport = 0; |
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+ t_mask.dport = 0; |
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+ t_mask.proto = 0; |
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+ for (;optind + 1 <= argc;) { |
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+ char *s = argv[optind]; |
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+ u_int32_t arg = 0xffffffff; |
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+ int save=optind; |
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+ |
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+ optind++; |
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+ if (optind + 1 <= argc && |
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+ isdigit(*(argv[optind])) ) { |
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+ arg = strtoul(argv[optind], NULL, 0); |
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+ optind++; |
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+ } |
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+ |
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+ if (!strcmp(s, "src-ip")) |
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+ t_mask.src.s_addr = htonl(arg); |
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+ else if (!strcmp(s, "dst-ip")) |
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+ t_mask.dst.s_addr = htonl(arg); |
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+ else if (!strcmp(s, "src-port")) |
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+ t_mask.sport = htons((u_short)(arg)); |
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+ else if (!strcmp(s, "dst-port")) |
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+ t_mask.dport = htons((u_short)(arg)); |
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+ else if (!strcmp(s, "proto")) |
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+ t_mask.proto = arg; |
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+ else { |
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+ optind = save; |
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+ break; |
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+ } |
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+ } |
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break; |
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case 'n': |
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++nflag; |
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--- trafshow.1.orig Fri Aug 28 09:37:38 1998 |
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+++ trafshow.1 Tue Apr 15 22:32:21 2003 |
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@@ -42,6 +42,16 @@ |
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.B \-k |
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Disable input keyboard checking. It is intended to avoid loss of packets. |
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.TP |
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+.B \-m |
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+[src-ip M] [dst-ip M] [src-port M] [dst-port M] [proto M] |
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+.br |
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+Mask the specified field with mask M (which should be specified |
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+as an hex number e.g. 0xffff0000) before further processing |
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+of the packet. This allows to aggregate traffic in the display |
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+to ease analysis. |
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+.br |
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+.The masks for all field not specified will be set to 0. |
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+.TP |
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.B \-n |
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Don't convert host addresses and port numbers to names. |
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.TP |
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|
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