| #ifndef _POSIX_SOURCE |
| #define _POSIX_SOURCE |
| #endif |
| #include <errno.h> |
| #include <string.h> |
| #include <strings.h> |
| |
| #include <netlink/genl/genl.h> |
| #include <netlink/genl/family.h> |
| #include <netlink/genl/ctrl.h> |
| #include <netlink/msg.h> |
| #include <netlink/attr.h> |
| |
| #include "nl80211.h" |
| #include "iw.h" |
| |
| SECTION(ibss); |
| |
| static int join_ibss(struct nl80211_state *state, |
| struct nl_cb *cb, |
| struct nl_msg *msg, |
| int argc, char **argv, |
| enum id_input id) |
| { |
| char *end; |
| unsigned char abssid[6]; |
| unsigned char rates[NL80211_MAX_SUPP_RATES]; |
| int n_rates = 0; |
| char *value = NULL, *sptr = NULL; |
| float rate; |
| int bintval; |
| int i; |
| unsigned long freq; |
| static const struct { |
| const char *name; |
| unsigned int width; |
| int freq1_diff; |
| int chantype; /* for older kernel */ |
| } *chanmode_selected = NULL, chanmode[] = { |
| { .name = "HT20", |
| .width = NL80211_CHAN_WIDTH_20, |
| .freq1_diff = 0, |
| .chantype = NL80211_CHAN_HT20 }, |
| { .name = "HT40+", |
| .width = NL80211_CHAN_WIDTH_40, |
| .freq1_diff = 10, |
| .chantype = NL80211_CHAN_HT40PLUS }, |
| { .name = "HT40-", |
| .width = NL80211_CHAN_WIDTH_40, |
| .freq1_diff = -10, |
| .chantype = NL80211_CHAN_HT40MINUS }, |
| { .name = "NOHT", |
| .width = NL80211_CHAN_WIDTH_20_NOHT, |
| .freq1_diff = 0, |
| .chantype = NL80211_CHAN_NO_HT }, |
| { .name = "5MHZ", |
| .width = NL80211_CHAN_WIDTH_5, |
| .freq1_diff = 0, |
| .chantype = -1 }, |
| { .name = "10MHZ", |
| .width = NL80211_CHAN_WIDTH_10, |
| .freq1_diff = 0, |
| .chantype = -1 }, |
| }; |
| |
| if (argc < 2) |
| return 1; |
| |
| /* SSID */ |
| NLA_PUT(msg, NL80211_ATTR_SSID, strlen(argv[0]), argv[0]); |
| argv++; |
| argc--; |
| |
| /* freq */ |
| freq = strtoul(argv[0], &end, 10); |
| if (*end != '\0') |
| return 1; |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); |
| argv++; |
| argc--; |
| |
| if (argc) { |
| for (i = 0; i < ARRAY_SIZE(chanmode); i++) { |
| if (strcasecmp(chanmode[i].name, argv[0]) == 0) { |
| chanmode_selected = &chanmode[i]; |
| break; |
| } |
| } |
| if (chanmode_selected) { |
| NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH, |
| chanmode_selected->width); |
| NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, |
| freq + chanmode_selected->freq1_diff); |
| if (chanmode_selected->chantype != -1) |
| NLA_PUT_U32(msg, |
| NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
| chanmode_selected->chantype); |
| |
| argv++; |
| argc--; |
| } |
| |
| } |
| |
| if (argc && strcmp(argv[0], "fixed-freq") == 0) { |
| NLA_PUT_FLAG(msg, NL80211_ATTR_FREQ_FIXED); |
| argv++; |
| argc--; |
| } |
| |
| if (argc) { |
| if (mac_addr_a2n(abssid, argv[0]) == 0) { |
| NLA_PUT(msg, NL80211_ATTR_MAC, 6, abssid); |
| argv++; |
| argc--; |
| } |
| } |
| |
| if (argc > 1 && strcmp(argv[0], "beacon-interval") == 0) { |
| argv++; |
| argc--; |
| bintval = strtoul(argv[0], &end, 10); |
| if (*end != '\0') |
| return 1; |
| NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, bintval); |
| argv++; |
| argc--; |
| } |
| |
| /* basic rates */ |
| if (argc > 1 && strcmp(argv[0], "basic-rates") == 0) { |
| argv++; |
| argc--; |
| |
| value = strtok_r(argv[0], ",", &sptr); |
| |
| while (value && n_rates < NL80211_MAX_SUPP_RATES) { |
| rate = strtod(value, &end); |
| rates[n_rates] = rate * 2; |
| |
| /* filter out suspicious values */ |
| if (*end != '\0' || !rates[n_rates] || |
| rate*2 != rates[n_rates]) |
| return 1; |
| |
| n_rates++; |
| value = strtok_r(NULL, ",", &sptr); |
| } |
| |
| NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, n_rates, rates); |
| |
| argv++; |
| argc--; |
| } |
| |
| /* multicast rate */ |
| if (argc > 1 && strcmp(argv[0], "mcast-rate") == 0) { |
| argv++; |
| argc--; |
| |
| rate = strtod(argv[0], &end); |
| if (*end != '\0') |
| return 1; |
| |
| NLA_PUT_U32(msg, NL80211_ATTR_MCAST_RATE, (int)(rate * 10)); |
| argv++; |
| argc--; |
| } |
| |
| if (!argc) |
| return 0; |
| |
| if (strcmp(*argv, "key") != 0 && strcmp(*argv, "keys") != 0) |
| return 1; |
| |
| argv++; |
| argc--; |
| |
| return parse_keys(msg, argv, argc); |
| nla_put_failure: |
| return -ENOSPC; |
| } |
| |
| static int leave_ibss(struct nl80211_state *state, |
| struct nl_cb *cb, |
| struct nl_msg *msg, |
| int argc, char **argv, |
| enum id_input id) |
| { |
| return 0; |
| } |
| COMMAND(ibss, leave, NULL, |
| NL80211_CMD_LEAVE_IBSS, 0, CIB_NETDEV, leave_ibss, |
| "Leave the current IBSS cell."); |
| COMMAND(ibss, join, |
| "<SSID> <freq in MHz> [HT20|HT40+|HT40-|NOHT|5MHZ|10MHZ] [fixed-freq] [<fixed bssid>] [beacon-interval <TU>]" |
| " [basic-rates <rate in Mbps,rate2,...>] [mcast-rate <rate in Mbps>] " |
| "[key d:0:abcde]", |
| NL80211_CMD_JOIN_IBSS, 0, CIB_NETDEV, join_ibss, |
| "Join the IBSS cell with the given SSID, if it doesn't exist create\n" |
| "it on the given frequency. When fixed frequency is requested, don't\n" |
| "join/create a cell on a different frequency. When a fixed BSSID is\n" |
| "requested use that BSSID and do not adopt another cell's BSSID even\n" |
| "if it has higher TSF and the same SSID. If an IBSS is created, create\n" |
| "it with the specified basic-rates, multicast-rate and beacon-interval."); |