/* * netsniff-ng - the packet sniffing beast * Copyright 2011 Daniel Borkmann , * Swiss federal institute of technology (ETH Zurich) * Subject to the GPL, version 2. */ #include #include #include #include #include #include #include #include "xmalloc.h" #include "die.h" #include "bpf.h" #include "config.h" #include "str.h" static const char *short_options = "vhi:Vdbf:pD:"; static const struct option long_options[] = { {"input", required_argument, NULL, 'i'}, {"format", required_argument, NULL, 'f'}, {"cpp", no_argument, NULL, 'p'}, {"define", required_argument, NULL, 'D'}, {"verbose", no_argument, NULL, 'V'}, {"bypass", no_argument, NULL, 'b'}, {"dump", no_argument, NULL, 'd'}, {"version", no_argument, NULL, 'v'}, {"help", no_argument, NULL, 'h'}, {NULL, 0, NULL, 0} }; static const char *copyright = "Please report bugs to \n" "Copyright (C) 2011-2013 Daniel Borkmann ,\n" "Swiss federal institute of technology (ETH Zurich)\n" "License: GNU GPL version 2.0\n" "This is free software: you are free to change and redistribute it.\n" "There is NO WARRANTY, to the extent permitted by law."; extern int compile_filter(char *file, int verbose, int bypass, int format, bool invoke_cpp, char **cpp_argv); static void __noreturn help(void) { printf("bpfc %s, a tiny BPF compiler\n", VERSION_STRING); puts("http://www.netsniff-ng.org\n\n" "Usage: bpfc [options] || bpfc \n" "Options:\n" " -i|--input Berkeley Packet Filter file/stdin\n" " -p|--cpp Run bpf program through C preprocessor\n" " -D|--define Add macro/define for C preprocessor\n" " -f|--format Output format: C|netsniff-ng|xt_bpf|tcpdump\n" " -b|--bypass Bypass filter validation (e.g. for bug testing)\n" " -V|--verbose Be more verbose\n" " -d|--dump Dump supported instruction table\n" " -v|--version Print version and exit\n" " -h|--help Print this help and exit\n\n" "Examples:\n" " bpfc fubar\n" " bpfc fubar > foo (bpfc -f C -i fubar > foo) --> netsniff-ng -f foo ...\n" " bpfc -f tcpdump -i fubar > foo --> tcpdump -ddd like ...\n" " bpfc -f xt_bpf -b -p -i fubar\n" " iptables -A INPUT -m bpf --bytecode \"`./bpfc -f xt_bpf -i fubar`\" -j LOG\n" " bpfc - (read from stdin)\n" "Note:\n" " Generation of seccomp-BPF filters are fully supported as well.\n"); puts(copyright); die(); } static void __noreturn version(void) { printf("bpfc %s, Git id: %s\n", VERSION_LONG, GITVERSION); puts("a tiny BPF compiler\n" "http://www.netsniff-ng.org\n"); puts(copyright); die(); } int main(int argc, char **argv) { int ret, verbose = 0, c, opt_index, bypass = 0, format = 0; bool invoke_cpp = false; char **cpp_argv = NULL; size_t cpp_argc = 0; char *file = NULL; setfsuid(getuid()); setfsgid(getgid()); if (argc == 1) help(); while ((c = getopt_long(argc, argv, short_options, long_options, &opt_index)) != EOF) { switch (c) { case 'h': help(); break; case 'v': version(); break; case 'V': verbose = 1; break; case 'p': invoke_cpp = true; break; case 'D': cpp_argv = argv_insert(cpp_argv, &cpp_argc, "-D"); cpp_argv = argv_insert(cpp_argv, &cpp_argc, optarg); break; case 'f': if (!strncmp(optarg, "C", 1) || !strncmp(optarg, "netsniff-ng", 11)) format = 0; else if (!strncmp(optarg, "tcpdump", 7)) format = 2; else if (!strncmp(optarg, "xt_bpf", 6) || !strncmp(optarg, "tc", 2)) format = 1; else help(); break; case 'b': bypass = 1; break; case 'd': bpf_dump_op_table(); die(); case 'i': file = xstrdup(optarg); break; case '?': switch (optopt) { case 'i': case 'f': panic("Option -%c requires an argument!\n", optopt); default: if (isprint(optopt)) printf("Unknown option character `0x%X\'!\n", optopt); die(); } default: break; } } if (argc == 2) file = xstrdup(argv[1]); if (!file) panic("No Berkeley Packet Filter program specified!\n"); ret = compile_filter(file, verbose, bypass, format, invoke_cpp, cpp_argv); argv_free(cpp_argv); xfree(file); return ret; } ry='commit info' class='commit-info'> authorIdo Schimmel <idosch@mellanox.com>2017-02-09 10:28:39 +0100 committerDavid S. Miller <davem@davemloft.net>2017-02-10 11:32:12 -0500 commit42d5aa76ec8fc9602922cc590a437ecd6693523b (patch) tree3ef1ce83d0b844ef93c902fe2624459618930a83 /net parent58e3bdd59742feef680861acec19126e40e4fa8d (diff)

ipv4: fib: Send deletion notification with actual FIB alias type

When a FIB alias is removed, a notification is sent using the type passed from user space - can be RTN_UNSPEC - instead of the actual type of the removed alias. This is problematic for listeners of the FIB notification chain, as several FIB aliases can exist with matching parameters, but the type. Solve this by passing the actual type of the removed FIB alias. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> CC: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>

Diffstat (limited to 'net')

-rw-r--r--

net/ipv4/fib_trie.c

1 files changed, 2 insertions, 2 deletions