diff options
Diffstat (limited to 'src/tethering.c')
| -rw-r--r-- | src/tethering.c | 100 |
1 files changed, 97 insertions, 3 deletions
diff --git a/src/tethering.c b/src/tethering.c index 2facc707..6c15cc2e 100644 --- a/src/tethering.c +++ b/src/tethering.c @@ -31,20 +31,104 @@ #include "connman.h" +#include <gdhcp/gdhcp.h> + #define BRIDGE_NAME "tether" #define BRIDGE_IP "192.168.218.1" #define BRIDGE_BCAST "192.168.218.255" #define BRIDGE_SUBNET "255.255.255.0" +#define BRIDGE_IP_START "192.168.218.100" +#define BRIDGE_IP_END "192.168.218.200" +#define BRIDGE_DNS "8.8.8.8" static connman_bool_t tethering_status = FALSE; static const char *default_interface = NULL; static volatile gint tethering_enabled; +static GDHCPServer *tethering_dhcp_server = NULL; connman_bool_t __connman_tethering_get_status(void) { return tethering_status; } + +static void dhcp_server_debug(const char *str, void *data) +{ + connman_info("%s: %s\n", (const char *) data, str); +} + +static void dhcp_server_error(GDHCPServerError error) +{ + switch (error) { + case G_DHCP_SERVER_ERROR_NONE: + connman_error("OK"); + break; + case G_DHCP_SERVER_ERROR_INTERFACE_UNAVAILABLE: + connman_error("Interface unavailable"); + break; + case G_DHCP_SERVER_ERROR_INTERFACE_IN_USE: + connman_error("Interface in use"); + break; + case G_DHCP_SERVER_ERROR_INTERFACE_DOWN: + connman_error("Interface down"); + break; + case G_DHCP_SERVER_ERROR_NOMEM: + connman_error("No memory"); + break; + case G_DHCP_SERVER_ERROR_INVALID_INDEX: + connman_error("Invalid index"); + break; + case G_DHCP_SERVER_ERROR_INVALID_OPTION: + connman_error("Invalid option"); + break; + case G_DHCP_SERVER_ERROR_IP_ADDRESS_INVALID: + connman_error("Invalid address"); + break; + } +} + +static GDHCPServer *dhcp_server_start(const char *bridge, + const char *router, const char* subnet, + const char *start_ip, const char *end_ip, + unsigned int lease_time, const char *dns) +{ + GDHCPServerError error; + GDHCPServer *dhcp_server; + int index; + + DBG(""); + + index = connman_inet_ifindex(bridge); + if (index < 0) + return NULL; + + dhcp_server = g_dhcp_server_new(G_DHCP_IPV4, index, &error); + if (dhcp_server == NULL) { + dhcp_server_error(error); + return NULL; + } + + g_dhcp_server_set_debug(dhcp_server, dhcp_server_debug, "DHCP server"); + + g_dhcp_server_set_lease_time(dhcp_server, lease_time); + g_dhcp_server_set_option(dhcp_server, G_DHCP_SUBNET, subnet); + g_dhcp_server_set_option(dhcp_server, G_DHCP_ROUTER, router); + g_dhcp_server_set_option(dhcp_server, G_DHCP_DNS_SERVER, dns); + g_dhcp_server_set_ip_range(dhcp_server, start_ip, end_ip); + + g_dhcp_server_start(dhcp_server); + + return dhcp_server; +} + +static void dhcp_server_stop(GDHCPServer *server) +{ + if (server == NULL) + return; + + g_dhcp_server_unref(server); +} + static int create_bridge(const char *name) { int sk, err; @@ -187,7 +271,15 @@ void __connman_tethering_set_enabled(void) if (err < 0) return; - /* TODO Start DHCP server and DNS proxy on the bridge */ + tethering_dhcp_server = + dhcp_server_start(BRIDGE_NAME, + BRIDGE_IP, BRIDGE_SUBNET, + BRIDGE_IP_START, BRIDGE_IP_END, + 24 * 3600, BRIDGE_DNS); + if (tethering_dhcp_server == NULL) { + disable_bridge(BRIDGE_NAME); + return; + } enable_nat(default_interface); @@ -203,10 +295,10 @@ void __connman_tethering_set_disabled(void) DBG("enabled %d", tethering_enabled - 1); if (g_atomic_int_dec_and_test(&tethering_enabled) == 0) { - /* TODO Stop DHCP server and DNS proxy on the bridge */ - disable_nat(default_interface); + dhcp_server_stop(tethering_dhcp_server); + disable_bridge(BRIDGE_NAME); DBG("tethering stopped"); @@ -264,6 +356,8 @@ void __connman_tethering_cleanup(void) DBG(""); if (tethering_status == TRUE) { + if (tethering_dhcp_server) + dhcp_server_stop(tethering_dhcp_server); disable_bridge(BRIDGE_NAME); remove_bridge(BRIDGE_NAME); } |