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author | Nicolas Thill <nico@openwrt.org> | 2010-08-15 20:28:05 +0000 |
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committer | Nicolas Thill <nico@openwrt.org> | 2010-08-15 20:28:05 +0000 |
commit | 2c57634be3dfb83d76cc63e6fddb486fc725ecb7 (patch) | |
tree | 610afdd6036831458db468e283b1710083c3aa6d /package/busybox/patches/241-udhcpc-oversized_packets.patch | |
parent | 26f323dcf5afee0a88f1545aba04556aec6b9ae1 (diff) | |
download | mtk-20170518-2c57634be3dfb83d76cc63e6fddb486fc725ecb7.zip mtk-20170518-2c57634be3dfb83d76cc63e6fddb486fc725ecb7.tar.gz mtk-20170518-2c57634be3dfb83d76cc63e6fddb486fc725ecb7.tar.bz2 |
package/busybox: add missing bits from 1.17.1 update (mostly config stuff), rename upstream patches so they're applied first
SVN-Revision: 22665
Diffstat (limited to 'package/busybox/patches/241-udhcpc-oversized_packets.patch')
-rw-r--r-- | package/busybox/patches/241-udhcpc-oversized_packets.patch | 40 |
1 files changed, 25 insertions, 15 deletions
diff --git a/package/busybox/patches/241-udhcpc-oversized_packets.patch b/package/busybox/patches/241-udhcpc-oversized_packets.patch index b810752..ef9e7f4 100644 --- a/package/busybox/patches/241-udhcpc-oversized_packets.patch +++ b/package/busybox/patches/241-udhcpc-oversized_packets.patch @@ -12,7 +12,7 @@ /* Construct a ip/udp header for a packet, send packet */ int FAST_FUNC udhcp_send_raw_packet(struct dhcp_packet *dhcp_pkt, uint32_t source_nip, int source_port, -@@ -173,11 +178,12 @@ int FAST_FUNC udhcp_send_raw_packet(stru +@@ -173,10 +178,10 @@ int FAST_FUNC udhcp_send_raw_packet(stru { struct sockaddr_ll dest_sll; struct ip_udp_dhcp_packet packet; @@ -20,27 +20,36 @@ int fd; int result = -1; const char *msg; - + int p_len = udhcp_get_payload_len(dhcp_pkt); -+ + fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP)); if (fd < 0) { - msg = "socket(%s)"; -@@ -186,7 +192,7 @@ int FAST_FUNC udhcp_send_raw_packet(stru +@@ -185,8 +190,8 @@ int FAST_FUNC udhcp_send_raw_packet(stru + } memset(&dest_sll, 0, sizeof(dest_sll)); - memset(&packet, 0, offsetof(struct ip_udp_dhcp_packet, data)); +- memset(&packet, 0, offsetof(struct ip_udp_dhcp_packet, data)); - packet.data = *dhcp_pkt; /* struct copy */ ++ memset(&packet, 0, sizeof(packet)); + memcpy(&(packet.data), dhcp_pkt, p_len); dest_sll.sll_family = AF_PACKET; dest_sll.sll_protocol = htons(ETH_P_IP); -@@ -208,27 +214,25 @@ int FAST_FUNC udhcp_send_raw_packet(stru - * In order to work with those buggy servers, - * we truncate packets after end option byte. - */ -- padding = DHCP_OPTIONS_BUFSIZE - 1 - udhcp_end_option(packet.data.options); +@@ -199,36 +204,24 @@ int FAST_FUNC udhcp_send_raw_packet(stru + goto ret_close; + } +- /* We were sending full-sized DHCP packets (zero padded), +- * but some badly configured servers were seen dropping them. +- * Apparently they drop all DHCP packets >576 *ethernet* octets big, +- * whereas they may only drop packets >576 *IP* octets big +- * (which for typical Ethernet II means 590 octets: 6+6+2 + 576). +- * +- * In order to work with those buggy servers, +- * we truncate packets after end option byte. +- */ +- padding = DHCP_OPTIONS_BUFSIZE - 1 - udhcp_end_option(packet.data.options); +- packet.ip.protocol = IPPROTO_UDP; packet.ip.saddr = source_nip; packet.ip.daddr = dest_nip; @@ -65,11 +74,11 @@ udhcp_dump_packet(dhcp_pkt); - result = sendto(fd, &packet, IP_UPD_DHCP_SIZE - padding, /*flags:*/ 0, -+ result = sendto(fd, &packet, p_len, 0, ++ result = sendto(fd, &packet, p_len, /*flags:*/ 0, (struct sockaddr *) &dest_sll, sizeof(dest_sll)); msg = "sendto"; ret_close: -@@ -246,7 +250,6 @@ int FAST_FUNC udhcp_send_kernel_packet(s +@@ -246,7 +239,6 @@ int FAST_FUNC udhcp_send_kernel_packet(s uint32_t dest_nip, int dest_port) { struct sockaddr_in client; @@ -77,10 +86,11 @@ int fd; int result = -1; const char *msg; -@@ -278,8 +281,7 @@ int FAST_FUNC udhcp_send_kernel_packet(s +@@ -277,9 +269,7 @@ int FAST_FUNC udhcp_send_kernel_packet(s + } udhcp_dump_packet(dhcp_pkt); - +- - padding = DHCP_OPTIONS_BUFSIZE - 1 - udhcp_end_option(dhcp_pkt->options); - result = safe_write(fd, dhcp_pkt, DHCP_SIZE - padding); + result = safe_write(fd, dhcp_pkt, udhcp_get_payload_len(dhcp_pkt)); |