From ac3a4c16e9e173d3108f10b358047a0c369e1fb6 Mon Sep 17 00:00:00 2001
From: Jussi Laakkonen <jussi.laakkonen@jolla.com>
Date: Thu, 22 Oct 2020 14:38:27 +0300
Subject: pptp: Support --idle-wait and --max-echo-wait options

Implement support for --idle-wait and --max-echo-wait options. By
default these are set to 60 if omitted.

Added OPT_PPTP_ONLY to be able to separate these from the PPPD options.
All PPTP options need to be added with "pty" as one option in order for
them to work.
---
 vpn/plugins/pptp.c | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)

(limited to 'vpn')

diff --git a/vpn/plugins/pptp.c b/vpn/plugins/pptp.c
index 5fc861e4..0ede6f8b 100644
--- a/vpn/plugins/pptp.c
+++ b/vpn/plugins/pptp.c
@@ -54,15 +54,18 @@
 enum {
 	OPT_STRING = 1,
 	OPT_BOOL = 2,
+	OPT_PPTP_ONLY = 3,
 };
 
 struct {
 	const char *cm_opt;
 	const char *pptp_opt;
-	const char *vpnc_default;
+	const char *pptp_default;
 	int type;
 } pptp_options[] = {
 	{ "PPTP.User", "user", NULL, OPT_STRING },
+	{ "PPTP.IdleWait", "--idle-wait", NULL, OPT_PPTP_ONLY},
+	{ "PPTP.MaxEchoWait", "--max-echo-wait", NULL, OPT_PPTP_ONLY},
 	{ "PPPD.EchoFailure", "lcp-echo-failure", "0", OPT_STRING },
 	{ "PPPD.EchoInterval", "lcp-echo-interval", "0", OPT_STRING },
 	{ "PPPD.Debug", "debug", NULL, OPT_STRING },
@@ -436,7 +439,9 @@ static int run_connect(struct vpn_provider *provider,
 			vpn_provider_connect_cb_t cb, void *user_data,
 			const char *username, const char *password)
 {
-	const char *opt_s, *host;
+	GString *pptp_opt_s;
+	const char *opt_s;
+	const char *host;
 	char *str;
 	int err, i;
 
@@ -450,16 +455,11 @@ static int run_connect(struct vpn_provider *provider,
 	DBG("username %s password %p", username, password);
 
 	host = vpn_provider_get_string(provider, "Host");
-	str = g_strdup_printf("%s %s --nolaunchpppd --loglevel 2",
-				PPTP, host);
-	if (!str) {
-		connman_error("can not allocate memory");
-		err = -ENOMEM;
-		goto done;
-	}
 
-	connman_task_add_argument(task, "pty", str);
-	g_free(str);
+	/* Create PPTP options for pppd "pty" */
+	pptp_opt_s = g_string_new(NULL);
+	g_string_append_printf(pptp_opt_s, "%s %s --nolaunchpppd --loglevel 2",
+				PPTP, host);
 
 	connman_task_add_argument(task, "nodetach", NULL);
 	connman_task_add_argument(task, "lock", NULL);
@@ -474,7 +474,7 @@ static int run_connect(struct vpn_provider *provider,
 		opt_s = vpn_provider_get_string(provider,
 					pptp_options[i].cm_opt);
 		if (!opt_s)
-			opt_s = pptp_options[i].vpnc_default;
+			opt_s = pptp_options[i].pptp_default;
 
 		if (!opt_s)
 			continue;
@@ -485,8 +485,15 @@ static int run_connect(struct vpn_provider *provider,
 		else if (pptp_options[i].type == OPT_BOOL)
 			pptp_write_bool_option(task,
 					pptp_options[i].pptp_opt, opt_s);
+		else if (pptp_options[i].type == OPT_PPTP_ONLY)
+			g_string_append_printf(pptp_opt_s, " %s %s",
+					pptp_options[i].pptp_opt, opt_s);
 	}
 
+	str = g_string_free(pptp_opt_s, FALSE);
+	connman_task_add_argument(task, "pty", str);
+	g_free(str);
+
 	connman_task_add_argument(task, "plugin",
 				SCRIPTDIR "/libppp-plugin.so");
 
-- 
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