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authorNicolas Thill <nico@openwrt.org>2010-08-15 20:28:05 +0000
committerNicolas Thill <nico@openwrt.org>2010-08-15 20:28:05 +0000
commit2c57634be3dfb83d76cc63e6fddb486fc725ecb7 (patch)
tree610afdd6036831458db468e283b1710083c3aa6d /package/busybox/patches/241-udhcpc-oversized_packets.patch
parent26f323dcf5afee0a88f1545aba04556aec6b9ae1 (diff)
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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.patch40
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));