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author | Guy Harris <guy@alum.mit.edu> | 2017-06-04 18:58:40 -0700 |
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committer | Guy Harris <guy@alum.mit.edu> | 2017-06-05 05:28:26 +0000 |
commit | d0865fd619454a9ac06b1c7d287dc438aff50bb0 (patch) | |
tree | 91efc24ec72d274b1529342041641b36939236f2 /wiretap/iseries.c | |
parent | 17965f57f178aa7e4027f2d363658098e2f1abb3 (diff) | |
download | wireshark-d0865fd619454a9ac06b1c7d287dc438aff50bb0.tar.gz |
Allow bigger snapshot lengths for D-Bus captures.
Use WTAP_MAX_PACKET_SIZE_STANDARD, set to 256KB, for everything except
for D-Bus captures. Use WTAP_MAX_PACKET_SIZE_DBUS, set to 128MB, for
them, because that's the largest possible D-Bus message size. See
https://bugs.freedesktop.org/show_bug.cgi?id=100220
for an example of the problems caused by limiting the snapshot length to
256KB for D-Bus.
Have a snapshot length of 0 in a capture_file structure mean "there is
no snapshot length for the file"; we don't need the has_snap field in
that case, a value of 0 mean "no, we don't have a snapshot length".
In dumpcap, start out with a pipe buffer size of 2KB, and grow it as
necessary. When checking for a too-big packet from a pipe, check
against the appropriate maximum - 128MB for DLT_DBUS, 256KB for
everything else.
Change-Id: Ib2ce7a0cf37b971fbc0318024fd011e18add8b20
Reviewed-on: https://code.wireshark.org/review/21952
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Diffstat (limited to 'wiretap/iseries.c')
-rw-r--r-- | wiretap/iseries.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/wiretap/iseries.c b/wiretap/iseries.c index aec989203d..c14b1eddc5 100644 --- a/wiretap/iseries.c +++ b/wiretap/iseries.c @@ -720,7 +720,7 @@ iseries_parse_packet (wtap * wth, FILE_T fh, struct wtap_pkthdr *phdr, * Check the length first, just in case it's *so* big that, after * adding the Ethernet header length, it overflows. */ - if (pkt_len > WTAP_MAX_PACKET_SIZE - 14) + if (pkt_len > WTAP_MAX_PACKET_SIZE_STANDARD - 14) { /* * Probably a corrupt capture file; don't blow up trying @@ -732,7 +732,7 @@ iseries_parse_packet (wtap * wth, FILE_T fh, struct wtap_pkthdr *phdr, *err = WTAP_ERR_BAD_FILE; *err_info = g_strdup_printf("iseries: File has %" G_GUINT64_FORMAT "-byte packet, bigger than maximum of %u", (guint64)pkt_len + 14, - WTAP_MAX_PACKET_SIZE); + WTAP_MAX_PACKET_SIZE_STANDARD); return FALSE; } pkt_len += 14; |