diff options
Diffstat (limited to 'networking/udhcp/dhcpc.c')
| -rw-r--r-- | networking/udhcp/dhcpc.c | 47 |
1 files changed, 19 insertions, 28 deletions
diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c index a818c18..6666cbc 100644 --- a/networking/udhcp/dhcpc.c +++ b/networking/udhcp/dhcpc.c @@ -1027,7 +1027,6 @@ static int udhcp_raw_socket(int ifindex) * SOCK_DGRAM: remove link-layer headers on input (SOCK_RAW keeps them) * ETH_P_IP: want to receive only packets with IPv4 eth type */ - log3("got raw socket fd %d", fd); memset(&sock, 0, sizeof(sock)); /* let's be deterministic */ sock.sll_family = AF_PACKET; @@ -1122,29 +1121,6 @@ static void change_listen_mode(int new_mode) /* else LISTEN_NONE: client_data.sockfd stays closed */ } -/* Called only on SIGUSR1 */ -static void perform_renew(void) -{ - bb_simple_info_msg("performing DHCP renew"); - switch (client_data.state) { - case BOUND: - change_listen_mode(LISTEN_KERNEL); - case RENEWING: - case REBINDING: - client_data.state = RENEW_REQUESTED; - break; - case RENEW_REQUESTED: /* impatient are we? fine, square 1 */ - udhcp_run_script(NULL, "deconfig"); - case REQUESTING: - case RELEASED: - change_listen_mode(LISTEN_RAW); - client_data.state = INIT_SELECTING; - break; - case INIT_SELECTING: - break; - } -} - static void perform_release(uint32_t server_addr, uint32_t requested_ip) { char buffer[sizeof("255.255.255.255")]; @@ -1247,7 +1223,6 @@ static void client_background(void) //usage: "\n USR1 Renew lease" //usage: "\n USR2 Release lease" - int udhcpc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int udhcpc_main(int argc UNUSED_PARAM, char **argv) { @@ -1597,10 +1572,26 @@ int udhcpc_main(int argc UNUSED_PARAM, char **argv) switch (udhcp_sp_read()) { case SIGUSR1: client_data.first_secs = 0; /* make secs field count from 0 */ - perform_renew(); - if (client_data.state == RENEW_REQUESTED) + bb_simple_info_msg("performing DHCP renew"); + + switch (client_data.state) { + /* Try to renew/rebind */ + case BOUND: + case RENEWING: + case REBINDING: + change_listen_mode(LISTEN_KERNEL); + client_data.state = RENEW_REQUESTED; goto case_RENEW_REQUESTED; + /* Start things over */ + case RENEW_REQUESTED: /* two or more SIGUSR1 received */ + udhcp_run_script(NULL, "deconfig"); + /* case REQUESTING: break; */ + /* case RELEASED: break; */ + /* case INIT_SELECTING: break; */ + } + change_listen_mode(LISTEN_RAW); + client_data.state = INIT_SELECTING; packet_num = 0; /* Kill any timeouts, user wants this to hurry along */ timeout = 0; @@ -1737,7 +1728,7 @@ int udhcpc_main(int argc UNUSED_PARAM, char **argv) /* paranoia: must not be too small and not prone to overflows */ /* NB: 60s leases _are_ used in real world * (temporary IPs while ISP modem initializes) - * do not break this case by bumplit it up. + * do not break this case by bumping it up. */ if (lease_remaining < 0) /* signed overflow? */ lease_remaining = INT_MAX; |