Holger Schurig | 9ceb685 | 2009-11-11 11:36:34 +0100 | [diff] [blame] | 1 | #include <net/if.h> |
| 2 | #include <errno.h> |
| 3 | #include <string.h> |
| 4 | |
| 5 | #include <netlink/genl/genl.h> |
| 6 | #include <netlink/genl/family.h> |
| 7 | #include <netlink/genl/ctrl.h> |
| 8 | #include <netlink/msg.h> |
| 9 | #include <netlink/attr.h> |
| 10 | |
| 11 | #include "nl80211.h" |
| 12 | #include "iw.h" |
| 13 | |
| 14 | SECTION(survey); |
| 15 | |
| 16 | static int print_survey_handler(struct nl_msg *msg, void *arg) |
| 17 | { |
| 18 | struct nlattr *tb[NL80211_ATTR_MAX + 1]; |
| 19 | struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg)); |
| 20 | struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1]; |
| 21 | char dev[20]; |
| 22 | |
| 23 | static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = { |
| 24 | [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 }, |
| 25 | [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 }, |
| 26 | }; |
| 27 | |
| 28 | nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), |
| 29 | genlmsg_attrlen(gnlh, 0), NULL); |
| 30 | |
| 31 | if_indextoname(nla_get_u32(tb[NL80211_ATTR_IFINDEX]), dev); |
| 32 | printf("Survey data from %s\n", dev); |
| 33 | |
| 34 | if (!tb[NL80211_ATTR_SURVEY_INFO]) { |
| 35 | fprintf(stderr, "survey data missing!\n"); |
| 36 | return NL_SKIP; |
| 37 | } |
| 38 | |
| 39 | if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, |
| 40 | tb[NL80211_ATTR_SURVEY_INFO], |
| 41 | survey_policy)) { |
| 42 | fprintf(stderr, "failed to parse nested attributes!\n"); |
| 43 | return NL_SKIP; |
| 44 | } |
| 45 | |
| 46 | if (sinfo[NL80211_SURVEY_INFO_FREQUENCY]) |
Felix Fietkau | 8b5faae | 2011-01-11 09:51:12 +0900 | [diff] [blame] | 47 | printf("\tfrequency:\t\t\t%u MHz%s\n", |
Felix Fietkau | 5a7a66b | 2011-01-11 09:51:07 +0900 | [diff] [blame] | 48 | nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]), |
| 49 | sinfo[NL80211_SURVEY_INFO_IN_USE] ? " [in use]" : ""); |
Holger Schurig | 9ceb685 | 2009-11-11 11:36:34 +0100 | [diff] [blame] | 50 | if (sinfo[NL80211_SURVEY_INFO_NOISE]) |
Felix Fietkau | 8b5faae | 2011-01-11 09:51:12 +0900 | [diff] [blame] | 51 | printf("\tnoise:\t\t\t\t%d dBm\n", |
Holger Schurig | 9ceb685 | 2009-11-11 11:36:34 +0100 | [diff] [blame] | 52 | (int8_t)nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE])); |
Felix Fietkau | 8b5faae | 2011-01-11 09:51:12 +0900 | [diff] [blame] | 53 | if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) |
| 54 | printf("\tchannel active time:\t\t%llu ms\n", |
| 55 | (unsigned long long)nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME])); |
| 56 | if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) |
| 57 | printf("\tchannel busy time:\t\t%llu ms\n", |
| 58 | (unsigned long long)nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY])); |
| 59 | if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY]) |
| 60 | printf("\textension channel busy time:\t%llu ms\n", |
| 61 | (unsigned long long)nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY])); |
| 62 | if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) |
| 63 | printf("\tchannel receive time:\t\t%llu ms\n", |
| 64 | (unsigned long long)nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX])); |
| 65 | if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) |
| 66 | printf("\tchannel transmit time:\t\t%llu ms\n", |
| 67 | (unsigned long long)nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX])); |
Holger Schurig | 9ceb685 | 2009-11-11 11:36:34 +0100 | [diff] [blame] | 68 | return NL_SKIP; |
| 69 | } |
| 70 | |
| 71 | static int handle_survey_dump(struct nl80211_state *state, |
Johannes Berg | 05514f9 | 2012-07-19 11:50:50 +0200 | [diff] [blame^] | 72 | struct nl_cb *cb, |
| 73 | struct nl_msg *msg, |
| 74 | int argc, char **argv, |
| 75 | enum id_input id) |
Holger Schurig | 9ceb685 | 2009-11-11 11:36:34 +0100 | [diff] [blame] | 76 | { |
| 77 | nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_survey_handler, NULL); |
| 78 | return 0; |
| 79 | } |
| 80 | COMMAND(survey, dump, NULL, |
| 81 | NL80211_CMD_GET_SURVEY, NLM_F_DUMP, CIB_NETDEV, handle_survey_dump, |
| 82 | "List all gathered channel survey data"); |
| 83 | |