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https://github.com/sheumann/hush.git
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udhcp: rename fields in struct dhcpOfferedAddr
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
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47f2d7ef7d
commit
1d924f59b1
@ -170,8 +170,8 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv)
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if (static_lease_ip) {
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bb_info_msg("Found static lease: %x", static_lease_ip);
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memcpy(&static_lease.chaddr, &packet.chaddr, 16);
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static_lease.yiaddr = static_lease_ip;
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memcpy(&static_lease.lease_mac16, &packet.chaddr, 16);
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static_lease.lease_nip = static_lease_ip;
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static_lease.expires = 0;
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lease = &static_lease;
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@ -204,19 +204,19 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv)
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DEBUG("server_id = %08x", ntohl(server_id_aligned));
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if (server_id_aligned == server_config.server
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&& requested
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&& requested_aligned == lease->yiaddr
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&& requested_aligned == lease->lease_nip
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) {
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send_ACK(&packet, lease->yiaddr);
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send_ACK(&packet, lease->lease_nip);
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}
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} else if (requested) {
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/* INIT-REBOOT State */
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if (lease->yiaddr == requested_aligned)
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send_ACK(&packet, lease->yiaddr);
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if (lease->lease_nip == requested_aligned)
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send_ACK(&packet, lease->lease_nip);
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else
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send_NAK(&packet);
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} else if (lease->yiaddr == packet.ciaddr) {
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} else if (lease->lease_nip == packet.ciaddr) {
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/* RENEWING or REBINDING State */
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send_ACK(&packet, lease->yiaddr);
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send_ACK(&packet, lease->lease_nip);
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} else { /* don't know what to do!!!! */
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send_NAK(&packet);
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}
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@ -231,10 +231,11 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv)
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if (lease) {
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if (lease_expired(lease)) {
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/* probably best if we drop this lease */
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memset(lease->chaddr, 0, 16);
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/* make some contention for this address */
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} else
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memset(lease->lease_mac16, 0, 16);
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} else {
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/* make some contention for this address */
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send_NAK(&packet);
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}
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} else {
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uint32_t r = ntohl(requested_aligned);
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if (r < server_config.start_ip
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@ -252,7 +253,7 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv)
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case DHCPDECLINE:
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DEBUG("Received DECLINE");
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if (lease) {
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memset(lease->chaddr, 0, 16);
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memset(lease->lease_mac16, 0, 16);
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lease->expires = time(NULL) + server_config.decline_time;
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}
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break;
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@ -78,9 +78,9 @@ typedef uint32_t leasetime_t;
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typedef int32_t signed_leasetime_t;
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struct dhcpOfferedAddr {
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uint8_t chaddr[16];
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/* In network order */
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uint32_t yiaddr;
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uint8_t lease_mac16[16];
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/* "nip": IP in network order */
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uint32_t lease_nip;
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/* Unix time when lease expires, regardless of value of
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* server_config.remaining. Kept in memory in host order.
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* When written to file, converted to network order
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@ -61,10 +61,10 @@ int dumpleases_main(int argc UNUSED_PARAM, char **argv)
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while (full_read(fd, &lease, sizeof(lease)) == sizeof(lease)) {
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const char *fmt = ":%02x" + 1;
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for (i = 0; i < 6; i++) {
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printf(fmt, lease.chaddr[i]);
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printf(fmt, lease.lease_mac16[i]);
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fmt = ":%02x";
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}
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addr.s_addr = lease.yiaddr;
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addr.s_addr = lease.lease_nip;
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/* actually, 15+1 and 19+1, +1 is a space between columns */
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/* lease.hostname is char[20] and is always NUL terminated */
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printf(" %-16s%-20s", inet_ntoa(addr), lease.hostname);
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@ -360,7 +360,7 @@ void FAST_FUNC write_leases(void)
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for (i = 0; i < server_config.max_leases; i++) {
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leasetime_t tmp_time;
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if (leases[i].yiaddr == 0)
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if (leases[i].lease_nip == 0)
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continue;
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/* Screw with the time in the struct, for easier writing */
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@ -413,14 +413,14 @@ void FAST_FUNC read_leases(const char *file)
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IF_UDHCP_DEBUG(i = 0;)
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while (full_read(fd, &lease, sizeof(lease)) == sizeof(lease)) {
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/* ADDME: what if it matches some static lease? */
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uint32_t y = ntohl(lease.yiaddr);
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uint32_t y = ntohl(lease.lease_nip);
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if (y >= server_config.start_ip && y <= server_config.end_ip) {
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signed_leasetime_t expires = ntohl(lease.expires) - (signed_leasetime_t)time_passed;
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if (expires <= 0)
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continue;
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/* NB: add_lease takes "relative time", IOW,
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* lease duration, not lease deadline. */
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if (!(add_lease(lease.chaddr, lease.yiaddr, expires, lease.hostname))) {
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if (!(add_lease(lease.lease_mac16, lease.lease_nip, expires, lease.hostname))) {
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bb_error_msg("too many leases while loading %s", file);
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break;
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}
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@ -38,10 +38,10 @@ static void clear_lease(const uint8_t *chaddr, uint32_t yiaddr)
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continue;
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for (i = 0; i < server_config.max_leases; i++) {
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if ((j != 16 && memcmp(leases[i].chaddr, chaddr, 16) == 0)
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|| (yiaddr && leases[i].yiaddr == yiaddr)
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if ((j != 16 && memcmp(leases[i].lease_mac16, chaddr, 16) == 0)
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|| (yiaddr && leases[i].lease_nip == yiaddr)
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) {
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memset(&(leases[i]), 0, sizeof(leases[i]));
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memset(&leases[i], 0, sizeof(leases[i]));
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}
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}
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}
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@ -75,8 +75,8 @@ struct dhcpOfferedAddr* FAST_FUNC add_lease(
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hostname++;
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}
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}
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memcpy(oldest->chaddr, chaddr, 16);
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oldest->yiaddr = yiaddr;
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memcpy(oldest->lease_mac16, chaddr, 16);
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oldest->lease_nip = yiaddr;
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oldest->expires = time(NULL) + leasetime;
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}
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@ -97,7 +97,7 @@ struct dhcpOfferedAddr* FAST_FUNC find_lease_by_chaddr(const uint8_t *chaddr)
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unsigned i;
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for (i = 0; i < server_config.max_leases; i++)
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if (!memcmp(leases[i].chaddr, chaddr, 16))
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if (!memcmp(leases[i].lease_mac16, chaddr, 16))
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return &(leases[i]);
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return NULL;
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@ -110,8 +110,8 @@ struct dhcpOfferedAddr* FAST_FUNC find_lease_by_yiaddr(uint32_t yiaddr)
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unsigned i;
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for (i = 0; i < server_config.max_leases; i++)
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if (leases[i].yiaddr == yiaddr)
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return &(leases[i]);
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if (leases[i].lease_nip == yiaddr)
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return &leases[i];
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return NULL;
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}
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@ -174,9 +174,9 @@ uint32_t FAST_FUNC find_free_or_expired_address(const uint8_t *chaddr)
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}
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if (oldest_lease && lease_expired(oldest_lease)
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&& nobody_responds_to_arp(oldest_lease->yiaddr, chaddr)
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&& nobody_responds_to_arp(oldest_lease->lease_nip, chaddr)
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) {
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return oldest_lease->yiaddr;
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return oldest_lease->lease_nip;
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}
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return 0;
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@ -132,7 +132,7 @@ int FAST_FUNC send_offer(struct dhcpMessage *oldpacket)
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signed_leasetime_t tmp = lease->expires - time(NULL);
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if (tmp >= 0)
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lease_time_aligned = tmp;
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packet.yiaddr = lease->yiaddr;
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packet.yiaddr = lease->lease_nip;
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}
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/* Or the client has requested an IP */
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else if ((req = get_option(oldpacket, DHCP_REQUESTED_IP)) != NULL
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