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bus-proxy: read the right policy when running in user mode

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This commit is contained in:
Lennart Poettering 2014-06-10 15:46:32 +02:00
parent 638ca89c53
commit 2e2b36084a
5 changed files with 42 additions and 22 deletions
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31
src/bus-proxyd/bus-policy.c
View File

@ -83,6 +83,8 @@ static int file_load(Policy *p, const char *path) {
if (r < 0) {
if (r == -ENOENT)
return 0;
if (r == -EISDIR)
return r;
log_error("Failed to load %s: %s", path, strerror(-r));
return r;
@ -513,25 +515,32 @@ static int file_load(Policy *p, const char *path) {
}
}
int policy_load(Policy *p) {
_cleanup_strv_free_ char **l = NULL;
int policy_load(Policy *p, char **files) {
char **i;
int r;
assert(p);
file_load(p, "/etc/dbus-1/system.conf");
file_load(p, "/etc/dbus-1/system-local.conf");
STRV_FOREACH(i, files) {
r = conf_files_list(&l, ".conf", NULL, "/etc/dbus-1/system.d/", NULL);
if (r < 0) {
log_error("Failed to get configuration file list: %s", strerror(-r));
return r;
r = file_load(p, *i);
if (r == -EISDIR) {
_cleanup_strv_free_ char **l = NULL;
char **j;
r = conf_files_list(&l, ".conf", NULL, *i, NULL);
if (r < 0) {
log_error("Failed to get configuration file list: %s", strerror(-r));
return r;
}
STRV_FOREACH(j, l)
file_load(p, *j);
}
/* We ignore all errors but EISDIR, and just proceed. */
}
STRV_FOREACH(i, l)
file_load(p, *i);
return 0;
}

2
src/bus-proxyd/bus-policy.h
View File

@ -72,7 +72,7 @@ typedef struct Policy {
Hashmap *group_items;
} Policy;
int policy_load(Policy *p);
int policy_load(Policy *p, char **files);
void policy_free(Policy *p);
void policy_dump(Policy *p);

27
src/bus-proxyd/bus-proxyd.c
View File

@ -47,19 +47,21 @@
#include "capability.h"
#include "bus-policy.h"
static const char *arg_address = DEFAULT_SYSTEM_BUS_PATH;
static const char *arg_address = KERNEL_SYSTEM_BUS_PATH;
static char *arg_command_line_buffer = NULL;
static bool arg_drop_privileges = false;
static char **arg_configuration = NULL;
static int help(void) {
printf("%s [OPTIONS...]\n\n"
"Connect STDIO or a socket to a given bus address.\n\n"
" -h --help Show this help\n"
" --version Show package version\n"
" --drop-privileges Drop privileges\n"
" --address=ADDRESS Connect to the bus specified by ADDRESS\n"
" (default: " DEFAULT_SYSTEM_BUS_PATH ")\n",
" -h --help Show this help\n"
" --version Show package version\n"
" --drop-privileges Drop privileges\n"
" --configuration=PATH Configuration file or directory\n"
" --address=ADDRESS Connect to the bus specified by ADDRESS\n"
" (default: " KERNEL_SYSTEM_BUS_PATH ")\n",
program_invocation_short_name);
return 0;
@ -71,6 +73,7 @@ static int parse_argv(int argc, char *argv[]) {
ARG_VERSION = 0x100,
ARG_ADDRESS,
ARG_DROP_PRIVILEGES,
ARG_CONFIGURATION,
};
static const struct option options[] = {
@ -78,10 +81,11 @@ static int parse_argv(int argc, char *argv[]) {
{ "version", no_argument, NULL, ARG_VERSION },
{ "address", required_argument, NULL, ARG_ADDRESS },
{ "drop-privileges", no_argument, NULL, ARG_DROP_PRIVILEGES },
{ "configuration", required_argument, NULL, ARG_CONFIGURATION },
{ NULL, 0, NULL, 0 },
};
int c;
int c, r;
assert(argc >= 0);
assert(argv);
@ -107,6 +111,12 @@ static int parse_argv(int argc, char *argv[]) {
arg_drop_privileges = true;
break;
case ARG_CONFIGURATION:
r = strv_extend(&arg_configuration, optarg);
if (r < 0)
return log_oom();
break;
case '?':
return -EINVAL;
@ -1054,7 +1064,7 @@ int main(int argc, char *argv[]) {
if (r <= 0)
goto finish;
r = policy_load(&policy);
r = policy_load(&policy, arg_configuration);
if (r < 0) {
log_error("Failed to load policy: %s", strerror(-r));
goto finish;
@ -1425,6 +1435,7 @@ finish:
sd_bus_flush(b);
policy_free(&policy);
strv_free(arg_configuration);
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}

2
units/systemd-bus-proxyd@.service.in
View File

@ -12,7 +12,7 @@ Description=Legacy D-Bus Protocol Compatibility Daemon
# The first argument will be replaced by the service by information on
# the process requesting the proxy, we need a placeholder to keep the
# space available for this.
ExecStart=@rootlibexecdir@/systemd-bus-proxyd --drop-privileges xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
ExecStart=@rootlibexecdir@/systemd-bus-proxyd --drop-privileges --address=kernel:path=/dev/kdbus/0-system/bus --configuration=/etc/dbus-1/system.conf --configuration=/etc/dbus-1/system-local.conf --configuration=/etc/dbus-1/system.d/ xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
NotifyAccess=main
CapabilityBoundingSet=CAP_IPC_OWNER CAP_SETUID CAP_SETGID CAP_SETPCAP
PrivateTmp=yes

2
units/user/systemd-bus-proxyd@.service.in
View File

@ -12,5 +12,5 @@ Description=Legacy D-Bus Protocol Compatibility Daemon
# The first argument will be replaced by the service by information on
# the process requesting the proxy, we need a placeholder to keep the
# space available for this.
ExecStart=@rootlibexecdir@/systemd-bus-proxyd --address=kernel:path=/dev/kdbus/%U-user/bus xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
ExecStart=@rootlibexecdir@/sessiond-bus-proxyd --address=kernel:path=/dev/kdbus/%U-user/bus --configuration=/etc/dbus-1/session.conf --configuration=/etc/dbus-1/session-local.conf --configuration=/etc/dbus-1/session.d/ xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
NotifyAccess=main