forked from Qortal/Brooklyn
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35 lines
814 B
35 lines
814 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <linux/unistd.h> |
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#include <unistd.h> |
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#include <string.h> |
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#include <errno.h> |
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#include <linux/if_ether.h> |
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#include <net/if.h> |
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#include <linux/if_packet.h> |
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#include <arpa/inet.h> |
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static inline int open_raw_sock(const char *name) |
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{ |
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struct sockaddr_ll sll; |
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int sock; |
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sock = socket(PF_PACKET, SOCK_RAW | SOCK_NONBLOCK | SOCK_CLOEXEC, htons(ETH_P_ALL)); |
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if (sock < 0) { |
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printf("cannot create raw socket\n"); |
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return -1; |
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} |
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memset(&sll, 0, sizeof(sll)); |
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sll.sll_family = AF_PACKET; |
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sll.sll_ifindex = if_nametoindex(name); |
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sll.sll_protocol = htons(ETH_P_ALL); |
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if (bind(sock, (struct sockaddr *)&sll, sizeof(sll)) < 0) { |
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printf("bind to %s: %s\n", name, strerror(errno)); |
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close(sock); |
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return -1; |
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} |
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return sock; |
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}
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