| /* |
| * m_pedit_eth.c packet editor: ETH header |
| * |
| * This program is free software; you can distribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| * Authors: Amir Vadai (amir@vadai.me) |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <sys/socket.h> |
| #include <netinet/in.h> |
| #include <arpa/inet.h> |
| #include <string.h> |
| #include "utils.h" |
| #include "tc_util.h" |
| #include "m_pedit.h" |
| |
| static int |
| parse_eth(int *argc_p, char ***argv_p, |
| struct m_pedit_sel *sel, struct m_pedit_key *tkey) |
| { |
| int res = -1; |
| int argc = *argc_p; |
| char **argv = *argv_p; |
| |
| if (argc < 2) |
| return -1; |
| |
| if (!sel->extended) |
| return -1; |
| |
| tkey->htype = TCA_PEDIT_KEY_EX_HDR_TYPE_ETH; |
| |
| if (strcmp(*argv, "type") == 0) { |
| NEXT_ARG(); |
| tkey->off = 12; |
| res = parse_cmd(&argc, &argv, 2, TU32, RU16, sel, tkey); |
| goto done; |
| } |
| |
| if (strcmp(*argv, "dst") == 0) { |
| NEXT_ARG(); |
| tkey->off = 0; |
| res = parse_cmd(&argc, &argv, 6, TMAC, RU32, sel, tkey); |
| goto done; |
| } |
| |
| if (strcmp(*argv, "src") == 0) { |
| NEXT_ARG(); |
| tkey->off = 6; |
| res = parse_cmd(&argc, &argv, 6, TMAC, RU32, sel, tkey); |
| goto done; |
| } |
| |
| return -1; |
| |
| done: |
| *argc_p = argc; |
| *argv_p = argv; |
| return res; |
| } |
| |
| struct m_pedit_util p_pedit_eth = { |
| .id = "eth", |
| .parse_peopt = parse_eth, |
| }; |