---
gatchat/gatppp.c | 43 ++++++++++++++++++++++++++++++++++++++++---
gatchat/gatppp.h | 2 ++
gatchat/ppp.h | 2 +-
gatchat/ppp_net.c | 46 ++++++++++++++++++++++++++++------------------
4 files changed, 71 insertions(+), 22 deletions(-)
diff --git a/gatchat/gatppp.c b/gatchat/gatppp.c
index 993b5ea..d59f69b 100644
--- a/gatchat/gatppp.c
+++ b/gatchat/gatppp.c
@@ -76,6 +76,7 @@ struct _GAtPPP {
gpointer debug_data;
gboolean sta_pending;
guint ppp_dead_source;
+ int fd;
};
void ppp_debug(GAtPPP *ppp, const char *str)
@@ -288,7 +289,7 @@ void ppp_auth_notify(GAtPPP *ppp, gboolean success)
void ppp_ipcp_up_notify(GAtPPP *ppp, const char *local, const char *peer,
const char *dns1, const char *dns2)
{
- ppp->net = ppp_net_new(ppp);
+ ppp->net = ppp_net_new(ppp, ppp->fd);
if (ppp->net == NULL) {
ppp->disconnect_reason = G_AT_PPP_REASON_NET_FAIL;
@@ -296,8 +297,14 @@ void ppp_ipcp_up_notify(GAtPPP *ppp, const char *local,
const char *peer,
return;
}
- if (ppp_net_set_mtu(ppp->net, ppp->mtu) == FALSE)
- DBG(ppp, "Unable to set MTU");
+ /*
+ * If we have opened the tun interface locally,
+ * we have to set a MTU value.
+ */
+ if (ppp->fd < 0) {
+ if (ppp_net_set_mtu(ppp->net, ppp->mtu) == FALSE)
+ DBG(ppp, "Unable to set MTU");
+ }
ppp_enter_phase(ppp, PPP_PHASE_LINK_UP);
@@ -541,6 +548,9 @@ static GAtPPP *ppp_init_common(GAtHDLC *hdlc, gboolean
is_server, guint32 ip)
ppp->ref_count = 1;
+ /* Default value of fd is -1 */
+ ppp->fd = -1;
+
/* set options to defaults */
ppp->mru = DEFAULT_MRU;
ppp->mtu = DEFAULT_MTU;
@@ -629,6 +639,33 @@ GAtPPP *g_at_ppp_server_new_from_io(GAtIO *io, const char
*local)
return NULL;
ppp = ppp_init_common(hdlc, TRUE, ip);
+
+ g_at_hdlc_unref(hdlc);
+
+ return ppp;
+}
+
+GAtPPP *g_at_ppp_server_new_from_io_with_fd(GAtIO *io,
+ const char *local, int fd)
+{
+ GAtHDLC *hdlc;
+ GAtPPP *ppp;
+ guint32 ip;
+
+ if (local == NULL)
+ ip = 0;
+ else if (inet_pton(AF_INET, local, &ip) != 1)
+ return NULL;
+
+ hdlc = g_at_hdlc_new_from_io(io);
+ if (hdlc == NULL)
+ return NULL;
+
+ ppp = ppp_init_common(hdlc, TRUE, ip);
+
+ /* Set the fd value returned by ConnMan */
+ ppp->fd = fd;
+
g_at_hdlc_unref(hdlc);
return ppp;
diff --git a/gatchat/gatppp.h b/gatchat/gatppp.h
index fb5de4c..4ed4cde 100644
--- a/gatchat/gatppp.h
+++ b/gatchat/gatppp.h
@@ -54,6 +54,8 @@ GAtPPP *g_at_ppp_new(GIOChannel *modem);
GAtPPP *g_at_ppp_new_from_io(GAtIO *io);
GAtPPP *g_at_ppp_server_new(GIOChannel *modem, const char *local);
GAtPPP *g_at_ppp_server_new_from_io(GAtIO *io, const char *local);
+GAtPPP *g_at_ppp_server_new_from_io_with_fd(GAtIO *io,
+ const char *local, int fd);
void g_at_ppp_open(GAtPPP *ppp);
void g_at_ppp_set_connect_function(GAtPPP *ppp, GAtPPPConnectFunc callback,
diff --git a/gatchat/ppp.h b/gatchat/ppp.h
index d2786d7..8107820 100644
--- a/gatchat/ppp.h
+++ b/gatchat/ppp.h
@@ -102,7 +102,7 @@ void ppp_chap_free(struct ppp_chap *chap);
void ppp_chap_process_packet(struct ppp_chap *chap, const guint8 *new_packet);
/* TUN / Network related functions */
-struct ppp_net *ppp_net_new(GAtPPP *ppp);
+struct ppp_net *ppp_net_new(GAtPPP *ppp, int fd);
const char *ppp_net_get_interface(struct ppp_net *net);
void ppp_net_process_packet(struct ppp_net *net, const guint8 *packet);
void ppp_net_free(struct ppp_net *net);
diff --git a/gatchat/ppp_net.c b/gatchat/ppp_net.c
index 1a6cdf7..59c4b5e 100644
--- a/gatchat/ppp_net.c
+++ b/gatchat/ppp_net.c
@@ -123,12 +123,12 @@ const char *ppp_net_get_interface(struct ppp_net *net)
return net->if_name;
}
-struct ppp_net *ppp_net_new(GAtPPP *ppp)
+struct ppp_net *ppp_net_new(GAtPPP *ppp, int fd)
{
struct ppp_net *net;
GIOChannel *channel = NULL;
struct ifreq ifr;
- int fd, err;
+ int fdesc, err;
net = g_try_new0(struct ppp_net, 1);
if (net == NULL)
@@ -140,23 +140,33 @@ struct ppp_net *ppp_net_new(GAtPPP *ppp)
return NULL;
}
- /* open a tun interface */
- fd = open("/dev/net/tun", O_RDWR);
- if (fd < 0)
- goto error;
-
- memset(&ifr, 0, sizeof(ifr));
- ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
- strcpy(ifr.ifr_name, "ppp%d");
-
- err = ioctl(fd, TUNSETIFF, (void *) &ifr);
- if (err < 0)
- goto error;
-
- net->if_name = strdup(ifr.ifr_name);
+ /*
+ * If the fd value is still the default one,
+ * open the tun interface and configure it.
+ */
+ if (fd< 0) {
+ /* open a tun interface */
+ fdesc = open("/dev/net/tun", O_RDWR);
+ if (fdesc < 0)
+ goto error;
+
+ memset(&ifr, 0, sizeof(ifr));
+ ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
+ strcpy(ifr.ifr_name, "ppp%d");
+
+ err = ioctl(fdesc, TUNSETIFF, (void *) &ifr);
+ if (err < 0)
+ goto error;
+
+ net->if_name = strdup(ifr.ifr_name);
+ /* create a channel for reading and writing to this interface */
+ channel = g_io_channel_unix_new(fdesc);
+ } else {
+ net->if_name = strdup("Server ppp");
+ /* create a channel for reading and writing to this interface */
+ channel = g_io_channel_unix_new(fd);
+ }
- /* create a channel for reading and writing to this interface */
- channel = g_io_channel_unix_new(fd);
if (channel == NULL)
goto error;
--
1.7.1
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