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authorDenys Vlasenko2011-11-07 15:55:39 +0100
committerDenys Vlasenko2011-11-07 15:55:39 +0100
commit9ba75048c0099ed90b9a64cb7bb57bf12be93528 (patch)
tree172ef8f52da2e4fc4ee0f52aef3234b3bd170f96 /networking/udhcp/d6_socket.c
parent50089fc61c1dbb3d09c4bee21ab6d2aa44361ff9 (diff)
downloadbusybox-9ba75048c0099ed90b9a64cb7bb57bf12be93528.zip
busybox-9ba75048c0099ed90b9a64cb7bb57bf12be93528.tar.gz
udhcpc6: new applet. Not yet functional.
It builds. It sends Solicit packets. Not sure these packets are well-formed. I have no server to test it against. function old new delta udhcpc6_main - 2426 +2426 d6_send_raw_packet - 428 +428 d6_send_kernel_packet - 274 +274 d6_recv_raw_packet - 248 +248 send_d6_discover - 177 +177 packed_usage 28795 28966 +171 d6_run_script - 156 +156 send_d6_renew - 140 +140 send_d6_release - 126 +126 d6_recv_kernel_packet - 116 +116 send_d6_select - 95 +95 perform_d6_release - 78 +78 d6_find_option - 74 +74 init_d6_packet - 54 +54 d6_copy_option - 48 +48 d6_mcast_from_client_config_ifindex - 42 +42 d6_dump_packet - 24 +24 static.FF02__1_2 - 16 +16 d6_store_blob - 13 +13 applet_names 2432 2440 +8 applet_main 1412 1416 +4 applet_nameofs 706 708 +2 add_d6_client_options - 1 +1 ------------------------------------------------------------------------------ (add/remove: 21/0 grow/shrink: 4/0 up/down: 4721/0) Total: 4721 bytes text data bss dec hex filename 879080 493 7584 887157 d8975 busybox_old 884585 497 7584 892666 d9efa busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'networking/udhcp/d6_socket.c')
-rw-r--r--networking/udhcp/d6_socket.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/networking/udhcp/d6_socket.c b/networking/udhcp/d6_socket.c
new file mode 100644
index 0000000..56f69f6
--- /dev/null
+++ b/networking/udhcp/d6_socket.c
@@ -0,0 +1,34 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Copyright (C) 2011 Denys Vlasenko.
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+#include "common.h"
+#include "d6_common.h"
+#include <net/if.h>
+
+int FAST_FUNC d6_listen_socket(int port, const char *inf)
+{
+ int fd;
+ struct sockaddr_in6 addr;
+
+ log1("Opening listen socket on *:%d %s", port, inf);
+ fd = xsocket(PF_INET6, SOCK_DGRAM, IPPROTO_UDP);
+
+ setsockopt_reuseaddr(fd);
+ if (setsockopt_broadcast(fd) == -1)
+ bb_perror_msg_and_die("SO_BROADCAST");
+
+ /* NB: bug 1032 says this doesn't work on ethernet aliases (ethN:M) */
+ if (setsockopt_bindtodevice(fd, inf))
+ xfunc_die(); /* warning is already printed */
+
+ memset(&addr, 0, sizeof(addr));
+ addr.sin6_family = AF_INET6;
+ addr.sin6_port = htons(port);
+ /* addr.sin6_addr is all-zeros */
+ xbind(fd, (struct sockaddr *)&addr, sizeof(addr));
+
+ return fd;
+}