b0ced8f290
Before fix: | Case IPv6 rejection returned 0, expected 1 |FAIL - 1/4 cases failed With the fix: | OK Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: David Ahern <dsahern@kernel.org> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
68 lines
1.4 KiB
C
68 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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#include <errno.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <linux/types.h>
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#include <sys/socket.h>
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int main(int argc, const char **argv)
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{
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char cbuf[CMSG_SPACE(sizeof(__u32))];
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struct addrinfo hints, *ai;
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struct cmsghdr *cmsg;
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struct iovec iov[1];
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struct msghdr msg;
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int mark;
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int err;
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int fd;
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if (argc != 4) {
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fprintf(stderr, "Usage: %s <dst_ip> <port> <mark>\n", argv[0]);
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return 1;
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}
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mark = atoi(argv[3]);
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memset(&hints, 0, sizeof(hints));
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hints.ai_family = AF_UNSPEC;
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hints.ai_socktype = SOCK_DGRAM;
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ai = NULL;
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err = getaddrinfo(argv[1], argv[2], &hints, &ai);
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if (err) {
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fprintf(stderr, "Can't resolve address: %s\n", strerror(errno));
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return 1;
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}
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fd = socket(ai->ai_family, SOCK_DGRAM, IPPROTO_UDP);
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if (fd < 0) {
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fprintf(stderr, "Can't open socket: %s\n", strerror(errno));
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freeaddrinfo(ai);
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return 1;
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}
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iov[0].iov_base = "bla";
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iov[0].iov_len = 4;
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msg.msg_name = ai->ai_addr;
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msg.msg_namelen = ai->ai_addrlen;
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msg.msg_iov = iov;
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msg.msg_iovlen = 1;
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msg.msg_control = cbuf;
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msg.msg_controllen = sizeof(cbuf);
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cmsg = CMSG_FIRSTHDR(&msg);
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cmsg->cmsg_level = SOL_SOCKET;
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cmsg->cmsg_type = SO_MARK;
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cmsg->cmsg_len = CMSG_LEN(sizeof(__u32));
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*(__u32 *)CMSG_DATA(cmsg) = mark;
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err = sendmsg(fd, &msg, 0);
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close(fd);
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freeaddrinfo(ai);
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return err != 4;
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}
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