diff options
Diffstat (limited to 'networking')
-rw-r--r-- | networking/udhcp/dhcpd.c | 25 | ||||
-rw-r--r-- | networking/udhcp/dhcpd.h | 6 | ||||
-rw-r--r-- | networking/udhcp/dumpleases.c | 4 | ||||
-rw-r--r-- | networking/udhcp/files.c | 6 | ||||
-rw-r--r-- | networking/udhcp/leases.c | 20 | ||||
-rw-r--r-- | networking/udhcp/serverpacket.c | 2 |
6 files changed, 32 insertions, 31 deletions
diff --git a/networking/udhcp/dhcpd.c b/networking/udhcp/dhcpd.c index ccdfd362b..61e4a1d95 100644 --- a/networking/udhcp/dhcpd.c +++ b/networking/udhcp/dhcpd.c @@ -170,8 +170,8 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv) if (static_lease_ip) { bb_info_msg("Found static lease: %x", static_lease_ip); - memcpy(&static_lease.chaddr, &packet.chaddr, 16); - static_lease.yiaddr = static_lease_ip; + memcpy(&static_lease.lease_mac16, &packet.chaddr, 16); + static_lease.lease_nip = static_lease_ip; static_lease.expires = 0; lease = &static_lease; @@ -204,19 +204,19 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv) DEBUG("server_id = %08x", ntohl(server_id_aligned)); if (server_id_aligned == server_config.server && requested - && requested_aligned == lease->yiaddr + && requested_aligned == lease->lease_nip ) { - send_ACK(&packet, lease->yiaddr); + send_ACK(&packet, lease->lease_nip); } } else if (requested) { /* INIT-REBOOT State */ - if (lease->yiaddr == requested_aligned) - send_ACK(&packet, lease->yiaddr); + if (lease->lease_nip == requested_aligned) + send_ACK(&packet, lease->lease_nip); else send_NAK(&packet); - } else if (lease->yiaddr == packet.ciaddr) { + } else if (lease->lease_nip == packet.ciaddr) { /* RENEWING or REBINDING State */ - send_ACK(&packet, lease->yiaddr); + send_ACK(&packet, lease->lease_nip); } else { /* don't know what to do!!!! */ send_NAK(&packet); } @@ -231,10 +231,11 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv) if (lease) { if (lease_expired(lease)) { /* probably best if we drop this lease */ - memset(lease->chaddr, 0, 16); - /* make some contention for this address */ - } else + memset(lease->lease_mac16, 0, 16); + } else { + /* make some contention for this address */ send_NAK(&packet); + } } else { uint32_t r = ntohl(requested_aligned); if (r < server_config.start_ip @@ -252,7 +253,7 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv) case DHCPDECLINE: DEBUG("Received DECLINE"); if (lease) { - memset(lease->chaddr, 0, 16); + memset(lease->lease_mac16, 0, 16); lease->expires = time(NULL) + server_config.decline_time; } break; diff --git a/networking/udhcp/dhcpd.h b/networking/udhcp/dhcpd.h index 4b5fcc00f..a3ace92d4 100644 --- a/networking/udhcp/dhcpd.h +++ b/networking/udhcp/dhcpd.h @@ -78,9 +78,9 @@ typedef uint32_t leasetime_t; typedef int32_t signed_leasetime_t; struct dhcpOfferedAddr { - uint8_t chaddr[16]; - /* In network order */ - uint32_t yiaddr; + uint8_t lease_mac16[16]; + /* "nip": IP in network order */ + uint32_t lease_nip; /* Unix time when lease expires, regardless of value of * server_config.remaining. Kept in memory in host order. * When written to file, converted to network order diff --git a/networking/udhcp/dumpleases.c b/networking/udhcp/dumpleases.c index 1558f8848..5b98aa5fe 100644 --- a/networking/udhcp/dumpleases.c +++ b/networking/udhcp/dumpleases.c @@ -61,10 +61,10 @@ int dumpleases_main(int argc UNUSED_PARAM, char **argv) while (full_read(fd, &lease, sizeof(lease)) == sizeof(lease)) { const char *fmt = ":%02x" + 1; for (i = 0; i < 6; i++) { - printf(fmt, lease.chaddr[i]); + printf(fmt, lease.lease_mac16[i]); fmt = ":%02x"; } - addr.s_addr = lease.yiaddr; + addr.s_addr = lease.lease_nip; /* actually, 15+1 and 19+1, +1 is a space between columns */ /* lease.hostname is char[20] and is always NUL terminated */ printf(" %-16s%-20s", inet_ntoa(addr), lease.hostname); diff --git a/networking/udhcp/files.c b/networking/udhcp/files.c index af7730890..671ea94c9 100644 --- a/networking/udhcp/files.c +++ b/networking/udhcp/files.c @@ -360,7 +360,7 @@ void FAST_FUNC write_leases(void) for (i = 0; i < server_config.max_leases; i++) { leasetime_t tmp_time; - if (leases[i].yiaddr == 0) + if (leases[i].lease_nip == 0) continue; /* Screw with the time in the struct, for easier writing */ @@ -413,14 +413,14 @@ void FAST_FUNC read_leases(const char *file) IF_UDHCP_DEBUG(i = 0;) while (full_read(fd, &lease, sizeof(lease)) == sizeof(lease)) { /* ADDME: what if it matches some static lease? */ - uint32_t y = ntohl(lease.yiaddr); + uint32_t y = ntohl(lease.lease_nip); if (y >= server_config.start_ip && y <= server_config.end_ip) { signed_leasetime_t expires = ntohl(lease.expires) - (signed_leasetime_t)time_passed; if (expires <= 0) continue; /* NB: add_lease takes "relative time", IOW, * lease duration, not lease deadline. */ - if (!(add_lease(lease.chaddr, lease.yiaddr, expires, lease.hostname))) { + if (!(add_lease(lease.lease_mac16, lease.lease_nip, expires, lease.hostname))) { bb_error_msg("too many leases while loading %s", file); break; } diff --git a/networking/udhcp/leases.c b/networking/udhcp/leases.c index b2cdd1942..040126fe8 100644 --- a/networking/udhcp/leases.c +++ b/networking/udhcp/leases.c @@ -38,10 +38,10 @@ static void clear_lease(const uint8_t *chaddr, uint32_t yiaddr) continue; for (i = 0; i < server_config.max_leases; i++) { - if ((j != 16 && memcmp(leases[i].chaddr, chaddr, 16) == 0) - || (yiaddr && leases[i].yiaddr == yiaddr) + if ((j != 16 && memcmp(leases[i].lease_mac16, chaddr, 16) == 0) + || (yiaddr && leases[i].lease_nip == yiaddr) ) { - memset(&(leases[i]), 0, sizeof(leases[i])); + memset(&leases[i], 0, sizeof(leases[i])); } } } @@ -75,8 +75,8 @@ struct dhcpOfferedAddr* FAST_FUNC add_lease( hostname++; } } - memcpy(oldest->chaddr, chaddr, 16); - oldest->yiaddr = yiaddr; + memcpy(oldest->lease_mac16, chaddr, 16); + oldest->lease_nip = yiaddr; oldest->expires = time(NULL) + leasetime; } @@ -97,7 +97,7 @@ struct dhcpOfferedAddr* FAST_FUNC find_lease_by_chaddr(const uint8_t *chaddr) unsigned i; for (i = 0; i < server_config.max_leases; i++) - if (!memcmp(leases[i].chaddr, chaddr, 16)) + if (!memcmp(leases[i].lease_mac16, chaddr, 16)) return &(leases[i]); return NULL; @@ -110,8 +110,8 @@ struct dhcpOfferedAddr* FAST_FUNC find_lease_by_yiaddr(uint32_t yiaddr) unsigned i; for (i = 0; i < server_config.max_leases; i++) - if (leases[i].yiaddr == yiaddr) - return &(leases[i]); + if (leases[i].lease_nip == yiaddr) + return &leases[i]; return NULL; } @@ -174,9 +174,9 @@ uint32_t FAST_FUNC find_free_or_expired_address(const uint8_t *chaddr) } if (oldest_lease && lease_expired(oldest_lease) - && nobody_responds_to_arp(oldest_lease->yiaddr, chaddr) + && nobody_responds_to_arp(oldest_lease->lease_nip, chaddr) ) { - return oldest_lease->yiaddr; + return oldest_lease->lease_nip; } return 0; diff --git a/networking/udhcp/serverpacket.c b/networking/udhcp/serverpacket.c index 157d157ba..6aa2d34fa 100644 --- a/networking/udhcp/serverpacket.c +++ b/networking/udhcp/serverpacket.c @@ -132,7 +132,7 @@ int FAST_FUNC send_offer(struct dhcpMessage *oldpacket) signed_leasetime_t tmp = lease->expires - time(NULL); if (tmp >= 0) lease_time_aligned = tmp; - packet.yiaddr = lease->yiaddr; + packet.yiaddr = lease->lease_nip; } /* Or the client has requested an IP */ else if ((req = get_option(oldpacket, DHCP_REQUESTED_IP)) != NULL |