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cli: compare nmcli and NM versions

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nmcli gets NM version and compares it with its own and complains
when they differ. This is to indicate that the results are not reliable,
because the API could differ. '--nocheck' switches the checks off.
This commit is contained in:
Jiří Klimeš
2011-02-16 17:36:50 +01:00
parent 25ae47598c
commit a9a30eb08c
7 changed files with 214 additions and 95 deletions
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199
cli/src/connections.c
View File

@@ -176,6 +176,15 @@ usage (void)
" down id <id> | uuid <id>\n"));
}
/* The real commands that do something - i.e. not 'help', etc. */
static const char *real_con_commands[] = {
"list",
"status",
"up",
"down",
NULL
};
/* quit main loop */
static void
quit (void)
@@ -1655,14 +1664,10 @@ do_connection_down (NmCli *nmc, int argc, char **argv)
}
}
/* TODO: fail gracefully if we are using an old N-M with user settings
* support */
if (active)
nm_client_deactivate_connection (nmc->client, active);
else {
else
fprintf (stderr, _("Warning: Connection not active\n"));
}
sleep (1); /* Don't quit immediatelly and give NM time to check our permissions */
error:
@@ -1670,107 +1675,133 @@ error:
return nmc->return_value;
}
static NMCResultCode
parse_cmd (NmCli *nmc, int argc, char **argv)
{
GError *error = NULL;
if (argc == 0) {
if (!nmc_terse_option_check (nmc->print_output, nmc->required_fields, &error))
goto opt_error;
nmc->return_value = do_connections_list (nmc, argc, argv);
} else {
if (matches (*argv, "list") == 0) {
nmc->return_value = do_connections_list (nmc, argc-1, argv+1);
}
else if (matches(*argv, "status") == 0) {
if (!nmc_terse_option_check (nmc->print_output, nmc->required_fields, &error))
goto opt_error;
nmc->return_value = do_connections_status (nmc, argc-1, argv+1);
}
else if (matches(*argv, "up") == 0) {
nmc->return_value = do_connection_up (nmc, argc-1, argv+1);
}
else if (matches(*argv, "down") == 0) {
nmc->return_value = do_connection_down (nmc, argc-1, argv+1);
}
else if (matches (*argv, "help") == 0) {
usage ();
nmc->should_wait = FALSE;
} else {
usage ();
g_string_printf (nmc->return_text, _("Error: 'con' command '%s' is not valid."), *argv);
nmc->return_value = NMC_RESULT_ERROR_USER_INPUT;
nmc->should_wait = FALSE;
}
}
return nmc->return_value;
opt_error:
g_string_printf (nmc->return_text, _("Error: %s."), error->message);
nmc->return_value = NMC_RESULT_ERROR_USER_INPUT;
nmc->should_wait = FALSE;
g_error_free (error);
return nmc->return_value;
}
/* callback called when connections are obtained from the settings service */
static void
get_connections_cb (NMRemoteSettings *settings, gpointer user_data)
{
ArgsInfo *args = (ArgsInfo *) user_data;
GError *error = NULL;
/* Get the connection list */
args->nmc->system_connections = nm_remote_settings_list_connections (settings);
if (args->argc == 0) {
if (!nmc_terse_option_check (args->nmc->print_output, args->nmc->required_fields, &error))
goto opt_error;
args->nmc->return_value = do_connections_list (args->nmc, args->argc, args->argv);
} else {
if (matches (*args->argv, "list") == 0) {
args->nmc->return_value = do_connections_list (args->nmc, args->argc-1, args->argv+1);
}
else if (matches(*args->argv, "status") == 0) {
if (!nmc_terse_option_check (args->nmc->print_output, args->nmc->required_fields, &error))
goto opt_error;
args->nmc->return_value = do_connections_status (args->nmc, args->argc-1, args->argv+1);
}
else if (matches(*args->argv, "up") == 0) {
args->nmc->return_value = do_connection_up (args->nmc, args->argc-1, args->argv+1);
}
else if (matches(*args->argv, "down") == 0) {
args->nmc->return_value = do_connection_down (args->nmc, args->argc-1, args->argv+1);
}
else if (matches (*args->argv, "help") == 0) {
usage ();
args->nmc->should_wait = FALSE;
} else {
usage ();
g_string_printf (args->nmc->return_text, _("Error: 'con' command '%s' is not valid."), *args->argv);
args->nmc->return_value = NMC_RESULT_ERROR_USER_INPUT;
args->nmc->should_wait = FALSE;
}
}
parse_cmd (args->nmc, args->argc, args->argv);
if (!args->nmc->should_wait)
quit ();
return;
opt_error:
g_string_printf (args->nmc->return_text, _("Error: %s."), error->message);
args->nmc->return_value = NMC_RESULT_ERROR_USER_INPUT;
args->nmc->should_wait = FALSE;
g_error_free (error);
quit ();
return;
}
/* Entry point function for connections-related commands: 'nmcli con' */
NMCResultCode
do_connections (NmCli *nmc, int argc, char **argv)
{
DBusGConnection *bus;
GError *error = NULL;
int i = 0;
gboolean real_cmd = FALSE;
nmc->should_wait = TRUE;
args_info.nmc = nmc;
args_info.argc = argc;
args_info.argv = argv;
/* connect to DBus' system bus */
bus = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error);
if (error || !bus) {
g_string_printf (nmc->return_text, _("Error: could not connect to D-Bus."));
nmc->return_value = NMC_RESULT_ERROR_UNKNOWN;
return nmc->return_value;
if (argc == 0)
real_cmd = TRUE;
else {
while (real_con_commands[i] && matches (*argv, real_con_commands[i]) != 0)
i++;
if (real_con_commands[i] != NULL)
real_cmd = TRUE;
}
/* get system settings */
if (!(nmc->system_settings = nm_remote_settings_new (bus))) {
g_string_printf (nmc->return_text, _("Error: Could not get system settings."));
nmc->return_value = NMC_RESULT_ERROR_UNKNOWN;
return nmc->return_value;
if (!real_cmd) {
/* no real execution command - no need to get connections */
return parse_cmd (nmc, argc, argv);
} else {
if (!nmc_versions_match (nmc))
return nmc->return_value;
nmc->should_wait = TRUE;
args_info.nmc = nmc;
args_info.argc = argc;
args_info.argv = argv;
/* connect to DBus' system bus */
bus = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error);
if (error || !bus) {
g_string_printf (nmc->return_text, _("Error: could not connect to D-Bus."));
nmc->return_value = NMC_RESULT_ERROR_UNKNOWN;
return nmc->return_value;
}
/* get system settings */
if (!(nmc->system_settings = nm_remote_settings_new (bus))) {
g_string_printf (nmc->return_text, _("Error: Could not get system settings."));
nmc->return_value = NMC_RESULT_ERROR_UNKNOWN;
return nmc->return_value;
}
/* find out whether settings service is running */
g_object_get (nmc->system_settings, NM_REMOTE_SETTINGS_SERVICE_RUNNING, &nmc->system_settings_running, NULL);
if (!nmc->system_settings_running) {
g_string_printf (nmc->return_text, _("Error: Can't obtain connections: settings service is not running."));
nmc->return_value = NMC_RESULT_ERROR_UNKNOWN;
return nmc->return_value;
}
/* connect to signal "connections-read" - emitted when connections are fetched and ready */
g_signal_connect (nmc->system_settings, NM_REMOTE_SETTINGS_CONNECTIONS_READ,
G_CALLBACK (get_connections_cb), &args_info);
dbus_g_connection_unref (bus);
/* The rest will be done in get_connection_cb() callback.
* We need to wait for signals that connections are read.
*/
return NMC_RESULT_SUCCESS;
}
/* find out whether settings service is running */
g_object_get (nmc->system_settings, NM_REMOTE_SETTINGS_SERVICE_RUNNING, &nmc->system_settings_running, NULL);
if (!nmc->system_settings_running) {
g_string_printf (nmc->return_text, _("Error: Can't obtain connections: settings service is not running."));
nmc->return_value = NMC_RESULT_ERROR_UNKNOWN;
return nmc->return_value;
}
/* connect to signal "connections-read" - emitted when connections are fetched and ready */
g_signal_connect (nmc->system_settings, NM_REMOTE_SETTINGS_CONNECTIONS_READ,
G_CALLBACK (get_connections_cb), &args_info);
dbus_g_connection_unref (bus);
/* The rest will be done in get_connection_cb() callback.
* We need to wait for signals that connections are read.
*/
return NMC_RESULT_SUCCESS;
}

36
cli/src/devices.c
View File

@@ -1007,6 +1007,9 @@ do_devices_status (NmCli *nmc, int argc, char **argv)
goto error;
}
if (!nmc_versions_match (nmc))
goto error;
/* Print headers */
nmc->print_fields.flags = multiline_flag | mode_flag | escape_flag | NMC_PF_FLAG_MAIN_HEADER_ADD | NMC_PF_FLAG_FIELD_NAMES;
nmc->print_fields.header_name = _("Status of devices");
@@ -1066,6 +1069,9 @@ do_devices_list (NmCli *nmc, int argc, char **argv)
goto error;
}
if (!nmc_versions_match (nmc))
goto error;
nmc->get_client (nmc);
devices = nm_client_get_devices (nmc->client);
@@ -1216,6 +1222,9 @@ do_device_disconnect (NmCli *nmc, int argc, char **argv)
goto error;
}
if (!nmc_versions_match (nmc))
goto error;
nmc->get_client (nmc);
devices = nm_client_get_devices (nmc->client);
for (i = 0; devices && (i < devices->len); i++) {
@@ -1341,6 +1350,9 @@ do_device_wifi_list (NmCli *nmc, int argc, char **argv)
goto error;
}
if (!nmc_versions_match (nmc))
goto error;
/* Print headers */
nmc->print_fields.flags = multiline_flag | mode_flag | escape_flag | NMC_PF_FLAG_MAIN_HEADER_ADD | NMC_PF_FLAG_FIELD_NAMES;
nmc->print_fields.header_name = _("WiFi scan list");
@@ -1525,12 +1537,6 @@ do_device_wimax_list (NmCli *nmc, int argc, char **argv)
argv++;
}
/* create NMClient */
if (!nmc->get_client (nmc))
goto error;
devices = nm_client_get_devices (nmc->client);
if (!nmc->required_fields || strcasecmp (nmc->required_fields, "common") == 0)
fields_str = fields_common;
else if (!nmc->required_fields || strcasecmp (nmc->required_fields, "all") == 0)
@@ -1551,9 +1557,27 @@ do_device_wimax_list (NmCli *nmc, int argc, char **argv)
goto error;
}
if (!nmc_is_nm_running (nmc, &error)) {
if (error) {
g_string_printf (nmc->return_text, _("Error: Can't find out if NetworkManager is running: %s."), error->message);
nmc->return_value = NMC_RESULT_ERROR_UNKNOWN;
g_error_free (error);
} else {
g_string_printf (nmc->return_text, _("Error: NetworkManager is not running."));
nmc->return_value = NMC_RESULT_ERROR_NM_NOT_RUNNING;
}
goto error;
}
if (!nmc_versions_match (nmc))
goto error;
/* Print headers */
nmc->print_fields.flags = multiline_flag | mode_flag | escape_flag | NMC_PF_FLAG_MAIN_HEADER_ADD | NMC_PF_FLAG_FIELD_NAMES;
nmc->print_fields.header_name = _("WiMAX NSP list");
nmc->get_client (nmc);
devices = nm_client_get_devices (nmc->client);
if (iface) {
/* Device specified - list only NSPs of this interface */
for (i = 0; devices && (i < devices->len); i++) {

14
cli/src/network-manager.c
View File

@@ -156,12 +156,11 @@ show_nm_status (NmCli *nmc)
return nmc->return_value;
}
nmc->print_fields.flags = multiline_flag | mode_flag | escape_flag | NMC_PF_FLAG_MAIN_HEADER_ADD | NMC_PF_FLAG_FIELD_NAMES;
nmc->print_fields.header_name = _("NetworkManager status");
print_fields (nmc->print_fields, nmc->allowed_fields); /* Print header */
nm_running = nmc_is_nm_running (nmc, NULL);
if (nm_running) {
if (!nmc_versions_match (nmc))
goto error;
nmc->get_client (nmc); /* create NMClient */
state = nm_client_get_state (nmc->client);
net_enabled_str = nm_client_networking_get_enabled (nmc->client) ? _("enabled") : _("disabled");
@@ -183,6 +182,10 @@ show_nm_status (NmCli *nmc)
#endif
}
nmc->print_fields.flags = multiline_flag | mode_flag | escape_flag | NMC_PF_FLAG_MAIN_HEADER_ADD | NMC_PF_FLAG_FIELD_NAMES;
nmc->print_fields.header_name = _("NetworkManager status");
print_fields (nmc->print_fields, nmc->allowed_fields); /* Print header */
nmc->allowed_fields[0].value = nm_running ? _("running") : _("not running");
nmc->allowed_fields[1].value = nm_client_get_version (nmc->client);
nmc->allowed_fields[2].value = nm_state_to_string (state);
@@ -200,6 +203,9 @@ show_nm_status (NmCli *nmc)
print_fields (nmc->print_fields, nmc->allowed_fields); /* Print values */
return NMC_RESULT_SUCCESS;
error:
return nmc->return_value;
}
/* libnm-glib doesn't provide API fro Sleep method - implement D-Bus call ourselves */

4
cli/src/nmcli.c
View File

@@ -68,6 +68,7 @@ usage (const char *prog_name)
" -m[ode] tabular|multiline output mode\n"
" -f[ields] <field1,field2,...>|all|common specify fields to output\n"
" -e[scape] yes|no escape columns separators in values\n"
" -n[ocheck] don't check nmcli and NetworkManager versions\n"
" -v[ersion] show program version\n"
" -h[elp] print this help\n\n"
"OBJECT\n"
@@ -200,6 +201,8 @@ parse_command_line (NmCli *nmc, int argc, char **argv)
return nmc->return_value;
}
nmc->required_fields = g_strdup (argv[1]);
} else if (matches (opt, "-nocheck") == 0) {
nmc->nocheck_ver = TRUE;
} else if (matches (opt, "-version") == 0) {
printf (_("nmcli tool, version %s\n"), NMCLI_VERSION);
return NMC_RESULT_SUCCESS;
@@ -284,6 +287,7 @@ nmc_init (NmCli *nmc)
nmc->required_fields = NULL;
nmc->allowed_fields = NULL;
memset (&nmc->print_fields, '\0', sizeof (NmcPrintFields));
nmc->nocheck_ver = FALSE;
}
static void

6
cli/src/nmcli.h
View File

@@ -49,7 +49,10 @@ typedef enum {
NMC_RESULT_ERROR_DEV_DISCONNECT = 6,
/* NetworkManager is not running */
NMC_RESULT_ERROR_NM_NOT_RUNNING = 7
NMC_RESULT_ERROR_NM_NOT_RUNNING = 7,
/* nmcli and NetworkManager versions mismatch */
NMC_RESULT_ERROR_VERSIONS_MISMATCH = 8
} NMCResultCode;
typedef enum {
@@ -107,6 +110,7 @@ typedef struct _NmCli {
char *required_fields; /* Required fields in output: '--fields' option */
NmcOutputField *allowed_fields; /* Array of allowed fields for particular commands */
NmcPrintFields print_fields; /* Structure with field indices to print */
gboolean nocheck_ver; /* Don't check nmcli and NM versions: option '--nocheck' */
} NmCli;
#endif /* NMC_NMCLI_H */

49
cli/src/utils.c
View File

@@ -17,6 +17,9 @@
* (C) Copyright 2010 - 2011 Red Hat, Inc.
*/
/* Generated configuration file */
#include "config.h"
#include <stdio.h>
#include <string.h>
@@ -351,3 +354,49 @@ done:
return has_owner;
}
/*
* Compare versions of nmcli and NM daemon.
* Return: TRUE - the versions match (when only major and minor match, print a warning)
* FALSE - versions mismatch
*/
gboolean
nmc_versions_match (NmCli *nmc)
{
const char *nm_ver = NULL;
const char *dot;
gboolean match = FALSE;
g_return_val_if_fail (nmc != NULL, FALSE);
/* --nocheck option - don't compare the versions */
if (nmc->nocheck_ver)
return TRUE;
nmc->get_client (nmc);
nm_ver = nm_client_get_version (nmc->client);
if (nm_ver) {
if (!strcmp (nm_ver, VERSION))
match = TRUE;
else {
dot = strchr (nm_ver, '.');
if (dot) {
dot = strchr (dot + 1, '.');
if (dot && !strncmp (nm_ver, VERSION, dot-nm_ver)) {
fprintf(stderr,
_("Warning: nmcli (%s) and NetworkManager (%s) versions don't match. Use --nocheck to suppress the warning.\n"),
VERSION, nm_ver);
match = TRUE;
}
}
}
}
if (!match) {
g_string_printf (nmc->return_text, _("Error: nmcli (%s) and NetworkManager (%s) versions don't match. Force execution using --nocheck, but the results are unpredictable."),
VERSION, nm_ver ? nm_ver : _("unknown"));
nmc->return_value = NMC_RESULT_ERROR_VERSIONS_MISMATCH;
}
return match;
}

1
cli/src/utils.h
View File

@@ -33,5 +33,6 @@ GArray *parse_output_fields (const char *fields_str, const NmcOutputField fields
gboolean nmc_terse_option_check (NMCPrintOutput print_output, const char *fields, GError **error);
void print_fields (const NmcPrintFields fields, const NmcOutputField field_values[]);
gboolean nmc_is_nm_running (NmCli *nmc, GError **error);
gboolean nmc_versions_match (NmCli *nmc);
#endif /* NMC_UTILS_H */