From patchwork Tue Nov 28 23:08:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Grant Erickson X-Patchwork-Id: 13471928 Received: from mohas.pair.com (mohas.pair.com [209.68.5.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 05D865C3C0 for ; Tue, 28 Nov 2023 23:08:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=nuovations.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=nuovations.com Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from mohas.pair.com (localhost [127.0.0.1]) by mohas.pair.com (Postfix) with ESMTP id BEFB8731BE for ; Tue, 28 Nov 2023 18:08:51 -0500 (EST) Received: from localhost.localdomain (unknown [IPv6:2601:647:5a00:15c1:230d:b2c9:c388:f96b]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mohas.pair.com (Postfix) with ESMTPSA id 77C12731FC for ; Tue, 28 Nov 2023 18:08:51 -0500 (EST) From: Grant Erickson To: connman@lists.linux.dev Subject: [PATCH 7/8] connection: Document '__connman_connection_gateway_{add,remove}'. Date: Tue, 28 Nov 2023 15:08:45 -0800 Message-ID: <20231128230847.1224497-8-gerickson@nuovations.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231128230847.1224497-1-gerickson@nuovations.com> References: <20231128230847.1224497-1-gerickson@nuovations.com> Precedence: bulk X-Mailing-List: connman@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: mailmunge 3.11 on 209.68.5.112 This adds documentation to the '__connman_connection_gateway_{add,remove}' functions. --- src/connection.c | 73 ++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 71 insertions(+), 2 deletions(-) diff --git a/src/connection.c b/src/connection.c index db7212d44af4..8208671d6986 100644 --- a/src/connection.c +++ b/src/connection.c @@ -1040,6 +1040,41 @@ static void add_host_route(int family, int index, const char *gateway, } } +/** + * @brief + * Add, or set, the gateway, or default router, for a network + * service. + * + * This attempts to add, or set, the gateway, or default router, for + * a network service using the specified IP configuration gateway + * address and network interface index as the lookup key for the + * network service. + * + * @param[in,out] service A pointer to the mutable network service + * for which to add a gateway, or default + * router. + * @param[in] gateway An optional pointer to an immutable null- + * terminated C string containing the + * text-formatted address of the gateway, or + * default router, to add to or associate + * with @a service. + * @param[in] type The IP configuration type for which + * gateway, or default router, is to be + * added. + * @param[in] peer An optional pointer to an immutable null- + * terminated C string containing the + * text-formatted address of the network + * peer, for point-to-point links, + * associated with the gateway. + * + * @retval 0 If successful. + * @retval -EINVAL If service is null or if network interface + * index associated with @a service is invalid. + * + * @sa __connman_connection_gateway_remove + * @sa __connman_connection_update_gateway + * + */ int __connman_connection_gateway_add(struct connman_service *service, const char *gateway, enum connman_ipconfig_type type, @@ -1160,6 +1195,30 @@ done: return 0; } +/** + * @brief + * Remove, or clear, the gateway, or default router, for a network + * service. + * + * This attempts to remove, or clear, the gateway, or default router, + * for a network service using the specified network service and IP + * configuration type. + * + * @param[in,out] service A pointer to the mutable network service + * for which to remove, or clear, a gateway, + * or default router. + * @param[in] type The IP configuration type for which + * gateway, or default router, is to be + * removed. + * + * @retval 0 If successful. + * @retval -EINVAL If service is null or if network interface + * index associated with @a service is invalid. + * + * @sa __connman_connection_gateway_add + * @sa __connman_connection_update_gateway + * + */ void __connman_connection_gateway_remove(struct connman_service *service, enum connman_ipconfig_type type) { @@ -1189,8 +1248,14 @@ void __connman_connection_gateway_remove(struct connman_service *service, else do_ipv4 = do_ipv6 = true; + /* Delete any routes associated with this service's nameservers. */ + __connman_service_nameserver_del_routes(service, type); + /* + * If there is no hash table / map entry for this service, then + * there are no gateways associated with it; simply return. + */ data = g_hash_table_lookup(gateway_hash, service); if (!data) return; @@ -1208,6 +1273,8 @@ void __connman_connection_gateway_remove(struct connman_service *service, data->ipv6_gateway ? data->ipv6_gateway->gateway : "", set_default4, set_default6); + /* If necessary, delete any VPN-related host routes. */ + if (do_ipv4 && data->ipv4_gateway && data->ipv4_gateway->vpn && data->index >= 0) connman_inet_del_host_route(data->ipv4_gateway->vpn_phy_index, @@ -1219,11 +1286,13 @@ void __connman_connection_gateway_remove(struct connman_service *service, data->ipv6_gateway->vpn_phy_index, data->ipv6_gateway->gateway); + /* Remove all active routes associated with this gateway data. */ + err = disable_gateway(data, type); /* - * We remove the service from the hash only if all the gateway - * settings are to be removed. + * We remove the service from the service/gateway map only if ALL + * of the gateway settings are to be removed. */ if (do_ipv4 == do_ipv6 || (data->ipv4_gateway && !data->ipv6_gateway