File wireshark-0010-dumpcap-permission-denied.patch of Package wireshark
commit acac613af7d702dae533cbdf9ef49cef803d0559
Author: Robert Frohl <rfrohl@suse.com>
Date: Tue Sep 12 14:53:17 2023 +0200
Warn if user can't access dumpcap.
Index: wireshark-4.2.0rc2/capture/capture_sync.c
===================================================================
--- wireshark-4.2.0rc2.orig/capture/capture_sync.c
+++ wireshark-4.2.0rc2/capture/capture_sync.c
@@ -24,6 +24,10 @@
#include <wsutil/strtoi.h>
#include <wsutil/ws_assert.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <grp.h>
+
#ifdef _WIN32
#include <wsutil/unicode-utils.h>
#include <wsutil/win32-utils.h>
@@ -530,10 +534,21 @@ sync_pipe_open_command(char* const argv[
ws_close(data_pipe[PIPE_READ]);
ws_close(data_pipe[PIPE_WRITE]);
}
+ char * grp_warning = calloc(1, 256);
dup2(sync_pipe[PIPE_WRITE], 2);
ws_close(sync_pipe[PIPE_READ]);
ws_close(sync_pipe[PIPE_WRITE]);
execv(argv[0], argv);
+ if (errno == EPERM || errno == EACCES) {
+ struct stat statbuf;
+ struct group *grp;
+ if(stat("/usr/bin/dumpcap", &statbuf) == 0) {
+ if ((grp = getgrgid(statbuf.st_gid)) != NULL) {
+ snprintf(grp_warning , 256, "\nYou need to be a member of the '%s' group. Try running\n'usermod -a -G %s <YOUR_USERNAME>' as root.", grp->gr_name, grp->gr_name);
+ }
+ }
+ }
+ free(grp_warning);
sync_pipe_write_int_msg(2, SP_EXEC_FAILED, errno);
/* Exit with "_exit()", so that we don't close the connection