mirror of
https://github.com/Telecominfraproject/wlan-ap.git
synced 2025-10-31 18:38:10 +00:00
71 lines
2.6 KiB
Diff
71 lines
2.6 KiB
Diff
From 42252a58e7396370a32444339f409a8c4635d232 Mon Sep 17 00:00:00 2001
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From: John Crispin <john@phrozen.org>
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Date: Mon, 24 Mar 2025 10:57:41 +0100
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Subject: [PATCH] busybox: the DHCP client would sometimes send a superflous
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port unreachable frame
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Signed-off-by: John Crispin <john@phrozen.org>
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---
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.../patches/600-dhcp-port-unreachable.patch | 49 +++++++++++++++++++
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1 file changed, 49 insertions(+)
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create mode 100644 package/utils/busybox/patches/600-dhcp-port-unreachable.patch
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diff --git a/package/utils/busybox/patches/600-dhcp-port-unreachable.patch b/package/utils/busybox/patches/600-dhcp-port-unreachable.patch
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new file mode 100644
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index 0000000000..2055f9750a
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--- /dev/null
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+++ b/package/utils/busybox/patches/600-dhcp-port-unreachable.patch
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@@ -0,0 +1,49 @@
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+diff --git a/package/utils/busybox/patches/202-udhcpc_reuseport.patch b/package/utils/busybox/patches/202-udhcpc_reuseport.patch
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+new file mode 100644
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+index 000000000000..d91d58397ee9
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+--- /dev/null
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++++ b/package/utils/busybox/patches/202-udhcpc_reuseport.patch
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+@@ -0,0 +1,43 @@
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++--- a/libbb/xconnect.c
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+++++ b/libbb/xconnect.c
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++@@ -37,6 +37,10 @@ void FAST_FUNC setsockopt_reuseaddr(int
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++ {
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++ setsockopt_SOL_SOCKET_1(fd, SO_REUSEADDR);
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++ }
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+++int FAST_FUNC setsockopt_reuseport(int fd)
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+++{
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+++ return setsockopt_SOL_SOCKET_1(fd, SO_REUSEPORT);
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+++}
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++ int FAST_FUNC setsockopt_broadcast(int fd)
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++ {
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++ return setsockopt_SOL_SOCKET_1(fd, SO_BROADCAST);
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++--- a/include/libbb.h
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+++++ b/include/libbb.h
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++@@ -734,6 +734,7 @@ int setsockopt_SOL_SOCKET_1(int fd, int
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++ * regardless of SO_REUSEADDR (unlike some other flavors of Unix).
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++ * Turn it on before you call bind(). */
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++ void setsockopt_reuseaddr(int fd) FAST_FUNC; /* On Linux this never fails. */
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+++int setsockopt_reuseport(int fd) FAST_FUNC;
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++ int setsockopt_keepalive(int fd) FAST_FUNC;
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++ int setsockopt_broadcast(int fd) FAST_FUNC;
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++ int setsockopt_bindtodevice(int fd, const char *iface) FAST_FUNC;
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++--- a/networking/udhcp/packet.c
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+++++ b/networking/udhcp/packet.c
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++@@ -206,6 +206,7 @@ int FAST_FUNC udhcp_send_kernel_packet(s
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++ goto ret_msg;
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++ }
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++ setsockopt_reuseaddr(fd);
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+++ setsockopt_reuseport(fd);
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++
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++ /* If interface carrier goes down, unless we
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++ * bind socket to a particular netdev, the packet
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++--- a/networking/udhcp/socket.c
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+++++ b/networking/udhcp/socket.c
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++@@ -86,6 +86,7 @@ int FAST_FUNC udhcp_listen_socket(/*uint
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++ fd = xsocket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
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++
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++ setsockopt_reuseaddr(fd);
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+++ setsockopt_reuseport(fd);
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++ if (setsockopt_broadcast(fd) == -1)
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++ bb_simple_perror_msg_and_die("SO_BROADCAST");
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++
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--
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2.34.1
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