diff options
author | Guy Harris <guy@alum.mit.edu> | 2017-06-04 18:58:40 -0700 |
---|---|---|
committer | Guy Harris <guy@alum.mit.edu> | 2017-06-05 05:28:26 +0000 |
commit | d0865fd619454a9ac06b1c7d287dc438aff50bb0 (patch) | |
tree | 91efc24ec72d274b1529342041641b36939236f2 /ui/capture_ui_utils.c | |
parent | 17965f57f178aa7e4027f2d363658098e2f1abb3 (diff) |
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 'ui/capture_ui_utils.c')
-rw-r--r-- | ui/capture_ui_utils.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/ui/capture_ui_utils.c b/ui/capture_ui_utils.c index 36e75b37e9..5655632d91 100644 --- a/ui/capture_ui_utils.c +++ b/ui/capture_ui_utils.c @@ -202,10 +202,10 @@ capture_dev_user_snaplen_find(const gchar *if_name, gboolean *hassnap, int *snap if (strcmp(if_tokens[i], if_name) == 0) { /* OK, this matches. */ if (*(colonp + 1) == '0') { - /* {hassnap} is false, so just set the snaplen to WTAP_MAX_PACKET_SIZE. */ + /* {hassnap} is false, so just set the snaplen to WTAP_MAX_PACKET_SIZE_STANDARD. */ found = TRUE; *hassnap = FALSE; - *snaplen = WTAP_MAX_PACKET_SIZE; + *snaplen = WTAP_MAX_PACKET_SIZE_STANDARD; } else if (*(colonp + 1) == '1') { /* {hassnap} is true, so extract {snaplen} */ if (*(colonp + 2) != '(') { |