diff options
author | Thomas Haller <thaller@redhat.com> | 2014-02-23 17:03:01 +0100 |
---|---|---|
committer | Thomas Haller <thaller@redhat.com> | 2014-02-26 19:06:00 +0100 |
commit | 14cf74b98083d785848d8fb29b806ab147b8fa8f (patch) | |
tree | 7f7409ce677bd054b8d0dc5fca56d2e8a41607f8 | |
parent | f0a8b3a76d2e374baf8751885973def451bc2049 (diff) | |
download | NetworkManager-14cf74b98083d785848d8fb29b806ab147b8fa8f.tar.gz |
libnm-util: don't assert in nm_setting_get_secret_flags() and avoid assertion in agent_secrets_done_cb()
When secret providers return the connection hash in GetSecrets(),
this hash also contains non-secret properties.
for_each_secret() iterated over all entries of the @secrets hash
and triggered the assertion in nm_setting_get_secret_flags() (see
below).
NM should not assert against user provided input. Change
nm_setting_get_secret_flags() to silently return FALSE, if the property
is not a secret. This makes nm_setting_get_secret_flags() useful to
check whether a property is actually a secret property.
Adjust all calls to nm_setting_get_secret_flags(), so that we assert
where appropriate.
Also, agent_secrets_done_cb() clears now all non-secrets properties
from the hash, using the new argument @remove_non_secrets when calling
for_each_secret().
#0 0x0000003370c504e9 in g_logv () from /lib64/libglib-2.0.so.0
#1 0x0000003370c5063f in g_log () from /lib64/libglib-2.0.so.0
#2 0x00007fa4b0c1c156 in get_secret_flags (setting=0x1e3ac60, secret_name=0x1ea9180 "security", verify_secret=1, out_flags=0x7fff7507857c, error=0x0) at nm-setting.c:1091
#3 0x00007fa4b0c1c2b2 in nm_setting_get_secret_flags (setting=0x1e3ac60, secret_name=0x1ea9180 "security", out_flags=0x7fff7507857c, error=0x0) at nm-setting.c:1124
#4 0x0000000000463d03 in for_each_secret (connection=0x1deb2f0, secrets=0x1e9f860, callback=0x464f1b <has_system_owned_secrets>, callback_data=0x7fff7507865c) at settings/nm-settings-connection.c:203
#5 0x000000000046525f in agent_secrets_done_cb (manager=0x1dddf50, call_id=1, agent_dbus_owner=0x1ddb9e0 ":1.39", agent_username=0x1e51710 "thom", agent_has_modify=1, setting_name=0x1e91f90 "802-11-wireless-security",
flags=NM_SETTINGS_GET_SECRETS_FLAG_ALLOW_INTERACTION, secrets=0x1e9f860, error=0x0, user_data=0x1deb2f0, other_data2=0x477d61 <get_secrets_cb>, other_data3=0x1ea92a0) at settings/nm-settings-connection.c:757
#6 0x00000000004dc4fd in get_complete_cb (parent=0x1ea6300, secrets=0x1e9f860, agent_dbus_owner=0x1ddb9e0 ":1.39", agent_username=0x1e51710 "thom", error=0x0, user_data=0x1dddf50) at settings/nm-agent-manager.c:1139
#7 0x00000000004dab54 in req_complete_success (req=0x1ea6300, secrets=0x1e9f860, agent_dbus_owner=0x1ddb9e0 ":1.39", agent_uname=0x1e51710 "thom") at settings/nm-agent-manager.c:502
#8 0x00000000004db86e in get_done_cb (agent=0x1e89530, call_id=0x1, secrets=0x1e9f860, error=0x0, user_data=0x1ea6300) at settings/nm-agent-manager.c:856
#9 0x00000000004de9d0 in get_callback (proxy=0x1e47530, call=0x1, user_data=0x1ea10f0) at settings/nm-secret-agent.c:267
#10 0x000000337380cad2 in complete_pending_call_and_unlock () from /lib64/libdbus-1.so.3
#11 0x000000337380fdc1 in dbus_connection_dispatch () from /lib64/libdbus-1.so.3
#12 0x000000342800ad65 in message_queue_dispatch () from /lib64/libdbus-glib-1.so.2
#13 0x0000003370c492a6 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#14 0x0000003370c49628 in g_main_context_iterate.isra.24 () from /lib64/libglib-2.0.so.0
#15 0x0000003370c49a3a in g_main_loop_run () from /lib64/libglib-2.0.so.0
#16 0x000000000042e5c6 in main (argc=1, argv=0x7fff75078e88) at main.c:644
Signed-off-by: Thomas Haller <thaller@redhat.com>
-rw-r--r-- | libnm-util/nm-setting-vpn.c | 13 | ||||
-rw-r--r-- | libnm-util/nm-setting.c | 20 | ||||
-rw-r--r-- | src/devices/nm-device-wifi.c | 18 | ||||
-rw-r--r-- | src/settings/nm-agent-manager.c | 6 | ||||
-rw-r--r-- | src/settings/nm-settings-connection.c | 28 | ||||
-rw-r--r-- | src/settings/plugins/ifnet/connection_parser.c | 3 | ||||
-rw-r--r-- | src/settings/plugins/keyfile/writer.c | 11 |
7 files changed, 69 insertions, 30 deletions
diff --git a/libnm-util/nm-setting-vpn.c b/libnm-util/nm-setting-vpn.c index b5cffc14b6..e88321ddec 100644 --- a/libnm-util/nm-setting-vpn.c +++ b/libnm-util/nm-setting-vpn.c @@ -612,8 +612,10 @@ compare_one_secret (NMSettingVPN *a, NMSettingSecretFlags a_secret_flags = NM_SETTING_SECRET_FLAG_NONE; NMSettingSecretFlags b_secret_flags = NM_SETTING_SECRET_FLAG_NONE; - nm_setting_get_secret_flags (NM_SETTING (a), key, &a_secret_flags, NULL); - nm_setting_get_secret_flags (NM_SETTING (b), key, &b_secret_flags, NULL); + if (!nm_setting_get_secret_flags (NM_SETTING (a), key, &a_secret_flags, NULL)) + g_return_val_if_reached (FALSE); + if (!nm_setting_get_secret_flags (NM_SETTING (b), key, &b_secret_flags, NULL)) + g_return_val_if_reached (FALSE); /* If the secret flags aren't the same, the settings aren't the same */ if (a_secret_flags != b_secret_flags) @@ -667,6 +669,7 @@ clear_secrets_with_flags (NMSetting *setting, GHashTableIter iter; const char *secret; gboolean changed = TRUE; + gboolean invalid_property = FALSE; if (priv->secrets == NULL) return FALSE; @@ -676,7 +679,10 @@ clear_secrets_with_flags (NMSetting *setting, while (g_hash_table_iter_next (&iter, (gpointer) &secret, NULL)) { NMSettingSecretFlags flags = NM_SETTING_SECRET_FLAG_NONE; - nm_setting_get_secret_flags (setting, secret, &flags, NULL); + if (!nm_setting_get_secret_flags (setting, secret, &flags, NULL)) { + invalid_property = TRUE; + continue; + } if (func (setting, pspec->name, flags, user_data) == TRUE) { g_hash_table_iter_remove (&iter); changed = TRUE; @@ -686,6 +692,7 @@ clear_secrets_with_flags (NMSetting *setting, if (changed) g_object_notify (G_OBJECT (setting), NM_SETTING_VPN_SECRETS); + g_return_val_if_fail (!invalid_property, changed); (void) invalid_property; return changed; } diff --git a/libnm-util/nm-setting.c b/libnm-util/nm-setting.c index f19ef6a7b2..96e0737657 100644 --- a/libnm-util/nm-setting.c +++ b/libnm-util/nm-setting.c @@ -533,8 +533,10 @@ compare_property (NMSetting *setting, NMSettingSecretFlags a_secret_flags = NM_SETTING_SECRET_FLAG_NONE; NMSettingSecretFlags b_secret_flags = NM_SETTING_SECRET_FLAG_NONE; - nm_setting_get_secret_flags (setting, prop_spec->name, &a_secret_flags, NULL); - nm_setting_get_secret_flags (other, prop_spec->name, &b_secret_flags, NULL); + if (!nm_setting_get_secret_flags (setting, prop_spec->name, &a_secret_flags, NULL)) + g_return_val_if_reached (FALSE); + if (!nm_setting_get_secret_flags (other, prop_spec->name, &b_secret_flags, NULL)) + g_return_val_if_reached (FALSE); /* If the secret flags aren't the same the settings aren't the same */ if (a_secret_flags != b_secret_flags) @@ -639,7 +641,8 @@ should_compare_prop (NMSetting *setting, if (comp_flags & NM_SETTING_COMPARE_FLAG_IGNORE_SECRETS) return FALSE; - nm_setting_get_secret_flags (setting, prop_name, &secret_flags, NULL); + if (!nm_setting_get_secret_flags (setting, prop_name, &secret_flags, NULL)) + g_return_val_if_reached (FALSE); if ( (comp_flags & NM_SETTING_COMPARE_FLAG_IGNORE_AGENT_OWNED_SECRETS) && (secret_flags & NM_SETTING_SECRET_FLAG_AGENT_OWNED)) @@ -862,7 +865,9 @@ clear_secrets_with_flags (NMSetting *setting, gboolean changed = FALSE; /* Clear the secret if the user function says to do so */ - nm_setting_get_secret_flags (setting, pspec->name, &flags, NULL); + if (!nm_setting_get_secret_flags (setting, pspec->name, &flags, NULL)) + g_return_val_if_reached (FALSE); + if (func (setting, pspec->name, flags, user_data) == TRUE) { GValue value = G_VALUE_INIT; @@ -1087,8 +1092,11 @@ get_secret_flags (NMSetting *setting, char *flags_prop; NMSettingSecretFlags flags = NM_SETTING_SECRET_FLAG_NONE; - if (verify_secret) - g_return_val_if_fail (is_secret_prop (setting, secret_name, error), FALSE); + if (verify_secret && !is_secret_prop (setting, secret_name, error)) { + if (out_flags) + *out_flags = NM_SETTING_SECRET_FLAG_NONE; + return FALSE; + } flags_prop = g_strdup_printf ("%s-flags", secret_name); g_object_get (G_OBJECT (setting), flags_prop, &flags, NULL); diff --git a/src/devices/nm-device-wifi.c b/src/devices/nm-device-wifi.c index fe4c7e0f91..81f410411d 100644 --- a/src/devices/nm-device-wifi.c +++ b/src/devices/nm-device-wifi.c @@ -2178,10 +2178,11 @@ need_new_8021x_secrets (NMDeviceWifi *self, s_8021x = nm_connection_get_setting_802_1x (connection); if (s_8021x) { - nm_setting_get_secret_flags (NM_SETTING (s_8021x), - NM_SETTING_802_1X_PASSWORD, - &secret_flags, - NULL); + if (!nm_setting_get_secret_flags (NM_SETTING (s_8021x), + NM_SETTING_802_1X_PASSWORD, + &secret_flags, + NULL)) + g_assert_not_reached (); if (secret_flags & NM_SETTING_SECRET_FLAG_NOT_SAVED) *setting_name = NM_SETTING_802_1X_SETTING_NAME; return *setting_name ? TRUE : FALSE; @@ -2189,10 +2190,11 @@ need_new_8021x_secrets (NMDeviceWifi *self, s_wsec = nm_connection_get_setting_wireless_security (connection); if (s_wsec) { - nm_setting_get_secret_flags (NM_SETTING (s_wsec), - NM_SETTING_WIRELESS_SECURITY_LEAP_PASSWORD, - &secret_flags, - NULL); + if (!nm_setting_get_secret_flags (NM_SETTING (s_wsec), + NM_SETTING_WIRELESS_SECURITY_LEAP_PASSWORD, + &secret_flags, + NULL)) + g_assert_not_reached (); if (secret_flags & NM_SETTING_SECRET_FLAG_NOT_SAVED) *setting_name = NM_SETTING_WIRELESS_SECURITY_SETTING_NAME; return *setting_name ? TRUE : FALSE; diff --git a/src/settings/nm-agent-manager.c b/src/settings/nm-agent-manager.c index ae9306929e..b158243e23 100644 --- a/src/settings/nm-agent-manager.c +++ b/src/settings/nm-agent-manager.c @@ -996,12 +996,14 @@ check_system_secrets_cb (NMSetting *setting, g_hash_table_iter_init (&iter, (GHashTable *) g_value_get_boxed (value)); while (g_hash_table_iter_next (&iter, (gpointer *) &secret_name, NULL)) { secret_flags = NM_SETTING_SECRET_FLAG_NONE; - nm_setting_get_secret_flags (setting, secret_name, &secret_flags, NULL); + if (!nm_setting_get_secret_flags (setting, secret_name, &secret_flags, NULL)) + g_return_if_reached (); if (secret_flags == NM_SETTING_SECRET_FLAG_NONE) *has_system = TRUE; } } else { - nm_setting_get_secret_flags (setting, key, &secret_flags, NULL); + if (!nm_setting_get_secret_flags (setting, key, &secret_flags, NULL)) + g_return_if_reached (); if (secret_flags == NM_SETTING_SECRET_FLAG_NONE) *has_system = TRUE; } diff --git a/src/settings/nm-settings-connection.c b/src/settings/nm-settings-connection.c index 6598990862..b5dc7eb22a 100644 --- a/src/settings/nm-settings-connection.c +++ b/src/settings/nm-settings-connection.c @@ -141,6 +141,7 @@ typedef gboolean (*ForEachSecretFunc) (GHashTableIter *iter, static void for_each_secret (NMConnection *connection, GHashTable *secrets, + gboolean remove_non_secrets, ForEachSecretFunc callback, gpointer callback_data) { @@ -172,6 +173,9 @@ for_each_secret (NMConnection *connection, const char *secret_name; GValue *val; + if (g_hash_table_size (setting_hash) <= 0) + continue; + /* Get the actual NMSetting from the connection so we can get secret flags * from the connection data, since flags aren't secrets. What we're * iterating here is just the secrets, not a whole connection. @@ -195,13 +199,21 @@ for_each_secret (NMConnection *connection, g_hash_table_iter_init (&vpn_secrets_iter, g_value_get_boxed (val)); while (g_hash_table_iter_next (&vpn_secrets_iter, (gpointer) &secret_name, NULL)) { secret_flags = NM_SETTING_SECRET_FLAG_NONE; - nm_setting_get_secret_flags (setting, secret_name, &secret_flags, NULL); - if (callback (&vpn_secrets_iter, secret_flags, callback_data) == FALSE) + if (!nm_setting_get_secret_flags (setting, secret_name, &secret_flags, NULL)) { + if (remove_non_secrets) + g_hash_table_iter_remove (&secret_iter); + continue; + } + if (callback && callback (&vpn_secrets_iter, secret_flags, callback_data) == FALSE) return; } } else { - nm_setting_get_secret_flags (setting, secret_name, &secret_flags, NULL); - if (callback (&secret_iter, secret_flags, callback_data) == FALSE) + if (!nm_setting_get_secret_flags (setting, secret_name, &secret_flags, NULL)) { + if (remove_non_secrets) + g_hash_table_iter_remove (&secret_iter); + continue; + } + if (callback && callback (&secret_iter, secret_flags, callback_data) == FALSE) return; } } @@ -754,7 +766,7 @@ agent_secrets_done_cb (NMAgentManager *manager, * save those system-owned secrets. If not, discard them and use the * existing secrets, or fail the connection. */ - for_each_secret (NM_CONNECTION (self), secrets, has_system_owned_secrets, &agent_had_system); + for_each_secret (NM_CONNECTION (self), secrets, TRUE, has_system_owned_secrets, &agent_had_system); if (agent_had_system) { if (flags == NM_SETTINGS_GET_SECRETS_FLAG_NONE) { /* No user interaction was allowed when requesting secrets; the @@ -766,7 +778,7 @@ agent_secrets_done_cb (NMAgentManager *manager, call_id, agent_dbus_owner); - for_each_secret (NM_CONNECTION (self), secrets, clear_nonagent_secrets, NULL); + for_each_secret (NM_CONNECTION (self), secrets, FALSE, clear_nonagent_secrets, NULL); } else if (agent_has_modify == FALSE) { /* Agent didn't successfully authenticate; clear system-owned secrets * from the secrets the agent returned. @@ -776,7 +788,7 @@ agent_secrets_done_cb (NMAgentManager *manager, setting_name, call_id); - for_each_secret (NM_CONNECTION (self), secrets, clear_nonagent_secrets, NULL); + for_each_secret (NM_CONNECTION (self), secrets, FALSE, clear_nonagent_secrets, NULL); } } } else { @@ -795,7 +807,7 @@ agent_secrets_done_cb (NMAgentManager *manager, * came back. Unsaved secrets by definition require user interaction. */ if (flags == NM_SETTINGS_GET_SECRETS_FLAG_NONE) - for_each_secret (NM_CONNECTION (self), secrets, clear_unsaved_secrets, NULL); + for_each_secret (NM_CONNECTION (self), secrets, TRUE, clear_unsaved_secrets, NULL); /* Update the connection with our existing secrets from backing storage */ nm_connection_clear_secrets (NM_CONNECTION (self)); diff --git a/src/settings/plugins/ifnet/connection_parser.c b/src/settings/plugins/ifnet/connection_parser.c index 72f4fdb976..7089e6d428 100644 --- a/src/settings/plugins/ifnet/connection_parser.c +++ b/src/settings/plugins/ifnet/connection_parser.c @@ -2913,7 +2913,8 @@ check_unsupported_secrets (NMSetting *setting, if (flags & NM_SETTING_PARAM_SECRET) { NMSettingSecretFlags secret_flags = NM_SETTING_SECRET_FLAG_NONE; - nm_setting_get_secret_flags (setting, key, &secret_flags, NULL); + if (!nm_setting_get_secret_flags (setting, key, &secret_flags, NULL)) + g_return_if_reached (); if (secret_flags != NM_SETTING_SECRET_FLAG_NONE) *unsupported_secret = TRUE; } diff --git a/src/settings/plugins/keyfile/writer.c b/src/settings/plugins/keyfile/writer.c index 2f8c7cc125..2aee0e4855 100644 --- a/src/settings/plugins/keyfile/writer.c +++ b/src/settings/plugins/keyfile/writer.c @@ -433,6 +433,7 @@ write_hash_of_string (GKeyFile *file, const char *property = NULL, *data = NULL; const char *group_name = nm_setting_get_name (setting); gboolean vpn_secrets = FALSE; + gboolean invalid_property = FALSE; /* Write VPN secrets out to a different group to keep them separate */ if (NM_IS_SETTING_VPN (setting) && !strcmp (key, NM_SETTING_VPN_SECRETS)) { @@ -451,7 +452,10 @@ write_hash_of_string (GKeyFile *file, if (vpn_secrets) { NMSettingSecretFlags secret_flags = NM_SETTING_SECRET_FLAG_NONE; - nm_setting_get_secret_flags (setting, property, &secret_flags, NULL); + if (!nm_setting_get_secret_flags (setting, property, &secret_flags, NULL)) { + invalid_property = TRUE; + continue; + } if (secret_flags != NM_SETTING_SECRET_FLAG_NONE) write_item = FALSE; } @@ -459,6 +463,8 @@ write_hash_of_string (GKeyFile *file, if (write_item) nm_keyfile_plugin_kf_set_string (file, group_name, property, data); } + + g_return_if_fail (!invalid_property); (void) invalid_property; } static void @@ -886,7 +892,8 @@ write_setting_value (NMSetting *setting, if (pspec && (pspec->flags & NM_SETTING_PARAM_SECRET) && !NM_IS_SETTING_VPN (setting)) { NMSettingSecretFlags secret_flags = NM_SETTING_SECRET_FLAG_NONE; - nm_setting_get_secret_flags (setting, key, &secret_flags, NULL); + if (!nm_setting_get_secret_flags (setting, key, &secret_flags, NULL)) + g_assert_not_reached (); if (secret_flags != NM_SETTING_SECRET_FLAG_NONE) return; } |