forked from pool/wireshark
ded8393c8f
wireshark 4.0.0 OBS-URL: https://build.opensuse.org/request/show/1008362 OBS-URL: https://build.opensuse.org/package/show/network:utilities/wireshark?expand=0&rev=377
76 lines
3.4 KiB
Diff
76 lines
3.4 KiB
Diff
commit 1865e02e6c22ee55b0bb11b8c78330d4e65a1132
|
|
Author: Robert Frohl <rfrohl@suse.com>
|
|
Date: Wed Jan 13 14:18:36 2021 +0100
|
|
|
|
Warn if user can't access dumpcap.
|
|
|
|
diff --git a/capchild/capture_sync.c b/capchild/capture_sync.c
|
|
index f31914886a..d3baab6c50 100644
|
|
--- a/capture/capture_sync.c
|
|
+++ b/capture/capture_sync.c
|
|
@@ -24,6 +24,10 @@
|
|
#include <wsutil/wslog.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>
|
|
@@ -592,11 +596,22 @@ sync_pipe_start(capture_options *capture_opts, capture_session *cap_session, inf
|
|
* Child process - run dumpcap with the right arguments to make
|
|
* it just capture with the specified capture parameters
|
|
*/
|
|
+ char * grp_warning = calloc(1, 256);
|
|
dup2(sync_pipe[PIPE_WRITE], 2);
|
|
ws_close(sync_pipe[PIPE_READ]);
|
|
execv(argv[0], argv);
|
|
- snprintf(errmsg, sizeof errmsg, "Couldn't run %s in child process: %s",
|
|
- argv[0], g_strerror(errno));
|
|
+ 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);
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+ snprintf(errmsg, sizeof errmsg, "Couldn't run %s in child process: %s%s",
|
|
+ argv[0], g_strerror(errno), grp_warning);
|
|
+ free(grp_warning);
|
|
sync_pipe_errmsg_to_parent(2, errmsg, "");
|
|
|
|
/* Exit with "_exit()", so that we don't close the connection
|
|
@@ -827,6 +842,7 @@ sync_pipe_open_command(char* const argv[], int *data_read_fd,
|
|
* Child process - run dumpcap with the right arguments to make
|
|
* it just capture with the specified capture parameters
|
|
*/
|
|
+ char * grp_warning = calloc(1, 256);
|
|
dup2(data_pipe[PIPE_WRITE], 1);
|
|
ws_close(data_pipe[PIPE_READ]);
|
|
ws_close(data_pipe[PIPE_WRITE]);
|
|
@@ -834,8 +850,18 @@ sync_pipe_open_command(char* const argv[], int *data_read_fd,
|
|
ws_close(sync_pipe[PIPE_READ]);
|
|
ws_close(sync_pipe[PIPE_WRITE]);
|
|
execv(argv[0], argv);
|
|
- snprintf(errmsg, sizeof errmsg, "Couldn't run %s in child process: %s",
|
|
- argv[0], g_strerror(errno));
|
|
+ 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);
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+ snprintf(errmsg, sizeof errmsg, "Couldn't run %s in child process: %s%s",
|
|
+ argv[0], g_strerror(errno), grp_warning);
|
|
+ free(grp_warning);
|
|
sync_pipe_errmsg_to_parent(2, errmsg, "");
|
|
|
|
/* Exit with "_exit()", so that we don't close the connection
|