projects / mirror_iproute2.git / blame
| Commit | Line | Data |
|---|---|---|
| 286446c1 ME |
1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* | |
| 3 | * link_xfrm.c Virtual XFRM Interface driver module | |
| 4 | * | |
| 5 | * Authors: Matt Ellison <matt@arroyo.io> | |
| 6 | */ | |
| 7 | ||
| 8 | #include <string.h> | |
| 9 | #include <linux/if_link.h> | |
| 10 | ||
| 11 | #include "rt_names.h" | |
| 12 | #include "utils.h" | |
| 13 | #include "ip_common.h" | |
| 14 | #include "tunnel.h" | |
| 15 | ||
| 16 | static void xfrm_print_help(struct link_util *lu, int argc, char **argv, | |
| 17 | FILE *f) | |
| 18 | { | |
| 19 | fprintf(f, "Usage: ... %-4s dev PHYS_DEV [ if_id IF-ID ]\n", lu->id); | |
| 20 | fprintf(f, "\nWhere: IF-ID := { 0x0..0xffffffff }\n"); | |
| 21 | } | |
| 22 | ||
| 23 | static int xfrm_parse_opt(struct link_util *lu, int argc, char **argv, | |
| 24 | struct nlmsghdr *n) | |
| 25 | { | |
| 26 | unsigned int link = 0; | |
| 27 | __u32 if_id = 0; | |
| 28 | ||
| 29 | while (argc > 0) { | |
| 30 | if (!matches(*argv, "dev")) { | |
| 31 | NEXT_ARG(); | |
| 32 | link = ll_name_to_index(*argv); | |
| 33 | if (!link) | |
| 34 | exit(nodev(*argv)); | |
| 35 | } else if (!matches(*argv, "if_id")) { | |
| 36 | NEXT_ARG(); | |
| 37 | if (!get_u32(&if_id, *argv, 0)) | |
| 38 | addattr32(n, 1024, IFLA_XFRM_IF_ID, if_id); | |
| 39 | } else { | |
| 40 | xfrm_print_help(lu, argc, argv, stderr); | |
| 41 | return -1; | |
| 42 | } | |
| 43 | argc--; argv++; | |
| 44 | } | |
| 45 | ||
| 46 | if (link) { | |
| 47 | addattr32(n, 1024, IFLA_XFRM_LINK, link); | |
| 48 | } else { | |
| 49 | fprintf(stderr, "must specify physical device\n"); | |
| 50 | return -1; | |
| 51 | } | |
| 52 | ||
| 53 | return 0; | |
| 54 | } | |
| 55 | ||
| 56 | static void xfrm_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) | |
| 57 | { | |
| 58 | ||
| 59 | if (!tb) | |
| 60 | return; | |
| 61 | ||
| 62 | if (tb[IFLA_XFRM_IF_ID]) { | |
| 63 | __u32 id = rta_getattr_u32(tb[IFLA_XFRM_IF_ID]); | |
| 64 | ||
| 65 | print_0xhex(PRINT_ANY, "if_id", "if_id %#llx ", id); | |
| 66 | ||
| 67 | } | |
| 68 | ||
| 69 | } | |
| 70 | ||
| 71 | struct link_util xfrm_link_util = { | |
| 72 | .id = "xfrm", | |
| 73 | .maxattr = IFLA_XFRM_MAX, | |
| 74 | .parse_opt = xfrm_parse_opt, | |
| 75 | .print_opt = xfrm_print_opt, | |
| 76 | .print_help = xfrm_print_help, | |
| 77 | }; |