/**
* The device init.rc file needs a corresponding entry.
*
* Example:
* service iprenew_<interface> /system/bin/dhcpcd -n
*
*/
int dhcp_do_request_renew(const char *interface,
char *ipaddr,
char *gateway,
uint32_t *prefixLength,
char *dns[],
char *server,
uint32_t *lease,
char *vendorInfo,
char *domain,
char *mtu)
{
char result_prop_name[PROPERTY_KEY_MAX];
char prop_value[PROPERTY_VALUE_MAX] = {'\0'};
char daemon_cmd[PROPERTY_VALUE_MAX * 2];
const char *ctrl_prop = "ctl.start";
char p2p_interface[MAX_INTERFACE_LENGTH];
get_p2p_interface_replacement(interface, p2p_interface);
snprintf(result_prop_name, sizeof(result_prop_name), "%s.%s.result",
DHCP_PROP_NAME_PREFIX,
p2p_interface);
/* Erase any previous setting of the dhcp result property */
property_set(result_prop_name, "");
/* Start the renew daemon and wait until it's ready */
snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:%s", DAEMON_NAME_RENEW,
p2p_interface, interface);
memset(prop_value, '\0', PROPERTY_VALUE_MAX);
property_set(ctrl_prop, daemon_cmd);
/* Wait for the daemon to return a result */
if (wait_for_property(result_prop_name, NULL, 30) < 0) {
snprintf(errmsg, sizeof(errmsg), "%s", "Timed out waiting for DHCP Renew to finish");
return -1;
}
if (!property_get(result_prop_name, prop_value, NULL)) {
/* shouldn't ever happen, given the success of wait_for_property() */
snprintf(errmsg, sizeof(errmsg), "%s", "DHCP Renew result property was not set");
return -1;
}
if (strcmp(prop_value, "ok") == 0) {
return fill_ip_info(interface, ipaddr, gateway, prefixLength, dns,
server, lease, vendorInfo, domain, mtu);
} else {
snprintf(errmsg, sizeof(errmsg), "DHCP Renew result was %s", prop_value);
return -1;
}
}
/*
* Get any available DHCP results.
*/
int dhcp_get_results(const char *interface,
char *ipaddr,
char *gateway,
uint32_t *prefixLength,
char *dns[],
char *server,
uint32_t *lease,
char *vendorInfo,
char *domain,
char *mtu
#ifdef SAMSUNG_WIFI_ROAMING
,uint32_t *roaming
#endif
)
{
char result_prop_name[PROPERTY_KEY_MAX];
char prop_value[PROPERTY_VALUE_MAX];
/* Interface name after converting p2p0-p2p0-X to p2p to reuse system properties */
char p2p_interface[MAX_INTERFACE_LENGTH];
#ifdef SAMSUNG_OXYGEN_NETWORK
char result_interface[MAX_INTERFACE_LENGTH];
#endif
get_p2p_interface_replacement(interface, p2p_interface);
#ifdef SAMSUNG_OXYGEN_NETWORK
if (get_ibss_interface_replacement(interface, p2p_interface) > 0) {
strncpy(result_interface, p2p_interface, MAX_INTERFACE_LENGTH);
} else {
strncpy(result_interface, interface, MAX_INTERFACE_LENGTH);
}
#endif
snprintf(result_prop_name, sizeof(result_prop_name), "%s.%s.result",
DHCP_PROP_NAME_PREFIX,
p2p_interface);
memset(prop_value, '\0', PROPERTY_VALUE_MAX);
if (!property_get(result_prop_name, prop_value, NULL)) {
snprintf(errmsg, sizeof(errmsg), "%s", "DHCP result property was not set");
return -1;
}
if (strcmp(prop_value, "ok") == 0) {
if (fill_ip_info(
#ifdef SAMSUNG_OXYGEN_NETWORK
result_interface,
#else
interface,
#endif
ipaddr, gateway, prefixLength, dns,
server, lease, vendorInfo, domain, mtu
#ifdef SAMSUNG_WIFI_ROAMING
, roaming
#endif
) == -1) {
return -1;
}
return 0;
} else {
snprintf(errmsg, sizeof(errmsg), "DHCP result was %s", prop_value);
return -1;
}
}
/*
* Start the dhcp client daemon, and wait for it to finish
* configuring the interface.
*/
int dhcp_do_request(const char *interface,
char *ipaddr,
char *gateway,
uint32_t *prefixLength,
char *dns1,
char *dns2,
char *server,
uint32_t *lease)
{
char result_prop_name[PROPERTY_KEY_MAX];
char daemon_prop_name[PROPERTY_KEY_MAX];
char prop_value[PROPERTY_VALUE_MAX] = {'\0'};
char daemon_cmd[PROPERTY_VALUE_MAX * 2];
const char *ctrl_prop = "ctl.start";
const char *desired_status = "running";
char daemon_suffix[MAX_DAEMON_SUFFIX];
get_daemon_suffix(interface, daemon_suffix);
snprintf(result_prop_name, sizeof(result_prop_name), "%s.%s.result",
DHCP_PROP_NAME_PREFIX,
interface);
snprintf(daemon_prop_name, sizeof(daemon_prop_name), "%s_%s",
DAEMON_PROP_NAME,
daemon_suffix);
/* Erase any previous setting of the dhcp result property */
property_set(result_prop_name, "");
/* Start the daemon and wait until it's ready */
if (property_get(HOSTNAME_PROP_NAME, prop_value, NULL) && (prop_value[0] != '\0'))
snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:-h %s %s", DAEMON_NAME, daemon_suffix,
prop_value, interface);
else
snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:%s", DAEMON_NAME, daemon_suffix, interface);
memset(prop_value, '\0', PROPERTY_VALUE_MAX);
property_set(ctrl_prop, daemon_cmd);
if (wait_for_property(daemon_prop_name, desired_status, 10) < 0) {
snprintf(errmsg, sizeof(errmsg), "%s", "Timed out waiting for dhcpcd to start");
return -1;
}
/* Wait for the daemon to return a result */
if (wait_for_property(result_prop_name, NULL, 30) < 0) {
snprintf(errmsg, sizeof(errmsg), "%s", "Timed out waiting for DHCP to finish");
return -1;
}
if (!property_get(result_prop_name, prop_value, NULL)) {
/* shouldn't ever happen, given the success of wait_for_property() */
snprintf(errmsg, sizeof(errmsg), "%s", "DHCP result property was not set");
return -1;
}
if (strcmp(prop_value, "ok") == 0) {
char dns_prop_name[PROPERTY_KEY_MAX];
if (fill_ip_info(interface, ipaddr, gateway, prefixLength, dns1, dns2, server, lease)
== -1) {
return -1;
}
/* copy dns data to system properties - TODO - remove this after we have async
* notification of renewal's */
snprintf(dns_prop_name, sizeof(dns_prop_name), "net.%s.dns1", interface);
property_set(dns_prop_name, *dns1 ? ipaddr_to_string(*dns1) : "");
snprintf(dns_prop_name, sizeof(dns_prop_name), "net.%s.dns2", interface);
property_set(dns_prop_name, *dns2 ? ipaddr_to_string(*dns2) : "");
return 0;
} else {
snprintf(errmsg, sizeof(errmsg), "DHCP result was %s", prop_value);
return -1;
}
}
/*
* Start the dhcp client daemon, and wait for it to finish
* configuring the interface.
*
* The device init.rc file needs a corresponding entry for this work.
*
* Example:
* service dhcpcd_<interface> /system/bin/dhcpcd -ABKL -f dhcpcd.conf
*/
int dhcp_do_request(const char *interface,
char *ipaddr,
char *gateway,
uint32_t *prefixLength,
char *dns[],
char *server,
uint32_t *lease,
char *vendorInfo,
char *domain,
char *mtu)
{
char result_prop_name[PROPERTY_KEY_MAX];
char daemon_prop_name[PROPERTY_KEY_MAX];
char prop_value[PROPERTY_VALUE_MAX] = {'\0'};
char daemon_cmd[PROPERTY_VALUE_MAX * 2 + sizeof(DHCP_CONFIG_PATH)];
const char *ctrl_prop = "ctl.start";
const char *desired_status = "running";
/* Interface name after converting p2p0-p2p0-X to p2p to reuse system properties */
char p2p_interface[MAX_INTERFACE_LENGTH];
get_p2p_interface_replacement(interface, p2p_interface);
snprintf(result_prop_name, sizeof(result_prop_name), "%s.%s.result",
DHCP_PROP_NAME_PREFIX,
p2p_interface);
snprintf(daemon_prop_name, sizeof(daemon_prop_name), "%s_%s",
DAEMON_PROP_NAME,
p2p_interface);
/* Erase any previous setting of the dhcp result property */
property_set(result_prop_name, "");
/* HACK: Sometimes the lease file appears to be corrupted, which can cause
* unknown errors while obtaining an address. We just remove the corresponding
* lease file prior to starting the daemon...
*/
{
char lease_file_path[PROPERTY_VALUE_MAX];
snprintf(lease_file_path, sizeof(lease_file_path),
"/data/misc/dhcp/dhcpcd-%s.lease",
p2p_interface);
unlink(lease_file_path);
}
/* Start the daemon and wait until it's ready */
if (property_get(HOSTNAME_PROP_NAME, prop_value, NULL) && (prop_value[0] != '\0'))
snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:-f %s -h %s %s", DAEMON_NAME,
p2p_interface, DHCP_CONFIG_PATH, prop_value, interface);
else
snprintf(daemon_cmd, sizeof(daemon_cmd), "%s_%s:-f %s %s", DAEMON_NAME,
p2p_interface, DHCP_CONFIG_PATH, interface);
memset(prop_value, '\0', PROPERTY_VALUE_MAX);
property_set(ctrl_prop, daemon_cmd);
if (wait_for_property(daemon_prop_name, desired_status, 10) < 0) {
snprintf(errmsg, sizeof(errmsg), "%s", "Timed out waiting for dhcpcd to start");
return -1;
}
/* Wait for the daemon to return a result */
if (wait_for_property(result_prop_name, NULL, 30) < 0) {
snprintf(errmsg, sizeof(errmsg), "%s", "Timed out waiting for DHCP to finish");
return -1;
}
if (!property_get(result_prop_name, prop_value, NULL)) {
/* shouldn't ever happen, given the success of wait_for_property() */
snprintf(errmsg, sizeof(errmsg), "%s", "DHCP result property was not set");
return -1;
}
if (strcmp(prop_value, "ok") == 0) {
char dns_prop_name[PROPERTY_KEY_MAX];
if (fill_ip_info(interface, ipaddr, gateway, prefixLength, dns,
server, lease, vendorInfo, domain, mtu) == -1) {
return -1;
}
return 0;
} else {
snprintf(errmsg, sizeof(errmsg), "DHCP result was %s", prop_value);
return -1;
}
}