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4a73ea10 HR |
1 | #include <net/if.h> |
2 | #include <errno.h> | |
4a73ea10 HR |
3 | |
4 | #include <netlink/genl/genl.h> | |
5 | #include <netlink/genl/family.h> | |
6 | #include <netlink/genl/ctrl.h> | |
7 | #include <netlink/msg.h> | |
8 | #include <netlink/attr.h> | |
9 | ||
10 | #include "nl80211.h" | |
11 | #include "iw.h" | |
12 | ||
13 | SECTION(mpp); | |
14 | ||
15 | static int print_mpp_handler(struct nl_msg *msg, void *arg) | |
16 | { | |
17 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; | |
18 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); | |
19 | char dst[20], next_hop[20], dev[20]; | |
20 | ||
21 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), | |
22 | genlmsg_attrlen(gnlh, 0), NULL); | |
23 | ||
24 | /* | |
25 | * TODO: validate the interface and mac address! | |
26 | * Otherwise, there's a race condition as soon as | |
27 | * the kernel starts sending mpath notifications. | |
28 | */ | |
29 | ||
30 | mac_addr_n2a(dst, nla_data(tb[NL80211_ATTR_MAC])); | |
31 | mac_addr_n2a(next_hop, nla_data(tb[NL80211_ATTR_MPATH_NEXT_HOP])); | |
32 | if_indextoname(nla_get_u32(tb[NL80211_ATTR_IFINDEX]), dev); | |
33 | printf("%s %s %s\n", dst, next_hop, dev); | |
34 | ||
35 | return NL_SKIP; | |
36 | } | |
37 | ||
38 | static int handle_mpp_get(struct nl80211_state *state, | |
4a73ea10 HR |
39 | struct nl_msg *msg, |
40 | int argc, char **argv, | |
41 | enum id_input id) | |
42 | { | |
43 | unsigned char dst[ETH_ALEN]; | |
44 | ||
45 | if (argc < 1) | |
46 | return 1; | |
47 | ||
48 | if (mac_addr_a2n(dst, argv[0])) { | |
49 | fprintf(stderr, "invalid mac address\n"); | |
50 | return 2; | |
51 | } | |
52 | argc--; | |
53 | argv++; | |
54 | ||
55 | if (argc) | |
56 | return 1; | |
57 | ||
58 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
59 | ||
34b23014 | 60 | register_handler(print_mpp_handler, NULL); |
4a73ea10 HR |
61 | |
62 | return 0; | |
63 | nla_put_failure: | |
64 | return -ENOBUFS; | |
65 | } | |
66 | COMMAND(mpp, get, "<MAC address>", | |
67 | NL80211_CMD_GET_MPP, 0, CIB_NETDEV, handle_mpp_get, | |
68 | "Get information on mesh proxy path to the given node."); | |
69 | ||
70 | static int handle_mpp_dump(struct nl80211_state *state, | |
4a73ea10 HR |
71 | struct nl_msg *msg, |
72 | int argc, char **argv, | |
73 | enum id_input id) | |
74 | { | |
75 | printf("DEST ADDR PROXY NODE IFACE\n"); | |
34b23014 | 76 | register_handler(print_mpp_handler, NULL); |
4a73ea10 HR |
77 | return 0; |
78 | } | |
79 | COMMAND(mpp, dump, NULL, | |
80 | NL80211_CMD_GET_MPP, NLM_F_DUMP, CIB_NETDEV, handle_mpp_dump, | |
81 | "List known mesh proxy paths."); |