| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Alexander Aring | 11328 | 76.54% | 53 | 47.75% |
| Miquel Raynal | 2573 | 17.39% | 18 | 16.22% |
| Dmitry Eremin-Solenikov | 330 | 2.23% | 5 | 4.50% |
| Johannes Berg | 301 | 2.03% | 11 | 9.91% |
| Varka Bhadram | 84 | 0.57% | 3 | 2.70% |
| Jiri Pirko | 31 | 0.21% | 1 | 0.90% |
| Alexander Smirnov | 26 | 0.18% | 2 | 1.80% |
| Dan Robertson | 24 | 0.16% | 1 | 0.90% |
| Phoebe Buckheister | 16 | 0.11% | 3 | 2.70% |
| Sergey Lapin | 15 | 0.10% | 1 | 0.90% |
| Michal Kubeček | 15 | 0.10% | 1 | 0.90% |
| Jakub Kiciński | 13 | 0.09% | 3 | 2.70% |
| Nicolas Dichtel | 13 | 0.09% | 2 | 1.80% |
| Stefan Schmidt | 12 | 0.08% | 1 | 0.90% |
| Dan Carpenter | 4 | 0.03% | 1 | 0.90% |
| Guido Günther | 4 | 0.03% | 1 | 0.90% |
| Jesse Gross | 3 | 0.02% | 1 | 0.90% |
| Pravin B Shelar | 3 | 0.02% | 1 | 0.90% |
| Denis Kirjanov | 3 | 0.02% | 1 | 0.90% |
| Thomas Gleixner | 2 | 0.01% | 1 | 0.90% |
| Total | 14800 | 111 |
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// SPDX-License-Identifier: GPL-2.0-only /* * * Authors: * Alexander Aring <aar@pengutronix.de> * * Based on: net/wireless/nl80211.c */ #include <linux/rtnetlink.h> #include <net/cfg802154.h> #include <net/genetlink.h> #include <net/mac802154.h> #include <net/netlink.h> #include <net/nl802154.h> #include <net/sock.h> #include "nl802154.h" #include "rdev-ops.h" #include "core.h" /* the netlink family */ static struct genl_family nl802154_fam; /* multicast groups */ enum nl802154_multicast_groups { NL802154_MCGRP_CONFIG, NL802154_MCGRP_SCAN, }; static const struct genl_multicast_group nl802154_mcgrps[] = { [NL802154_MCGRP_CONFIG] = { .name = "config", }, [NL802154_MCGRP_SCAN] = { .name = "scan", }, }; /* returns ERR_PTR values */ static struct wpan_dev * __cfg802154_wpan_dev_from_attrs(struct net *netns, struct nlattr **attrs) { struct cfg802154_registered_device *rdev; struct wpan_dev *result = NULL; bool have_ifidx = attrs[NL802154_ATTR_IFINDEX]; bool have_wpan_dev_id = attrs[NL802154_ATTR_WPAN_DEV]; u64 wpan_dev_id; int wpan_phy_idx = -1; int ifidx = -1; ASSERT_RTNL(); if (!have_ifidx && !have_wpan_dev_id) return ERR_PTR(-EINVAL); if (have_ifidx) ifidx = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]); if (have_wpan_dev_id) { wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]); wpan_phy_idx = wpan_dev_id >> 32; } list_for_each_entry(rdev, &cfg802154_rdev_list, list) { struct wpan_dev *wpan_dev; if (wpan_phy_net(&rdev->wpan_phy) != netns) continue; if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx) continue; list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { if (have_ifidx && wpan_dev->netdev && wpan_dev->netdev->ifindex == ifidx) { result = wpan_dev; break; } if (have_wpan_dev_id && wpan_dev->identifier == (u32)wpan_dev_id) { result = wpan_dev; break; } } if (result) break; } if (result) return result; return ERR_PTR(-ENODEV); } static struct cfg802154_registered_device * __cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs) { struct cfg802154_registered_device *rdev = NULL, *tmp; struct net_device *netdev; ASSERT_RTNL(); if (!attrs[NL802154_ATTR_WPAN_PHY] && !attrs[NL802154_ATTR_IFINDEX] && !attrs[NL802154_ATTR_WPAN_DEV]) return ERR_PTR(-EINVAL); if (attrs[NL802154_ATTR_WPAN_PHY]) rdev = cfg802154_rdev_by_wpan_phy_idx( nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY])); if (attrs[NL802154_ATTR_WPAN_DEV]) { u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]); struct wpan_dev *wpan_dev; bool found = false; tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32); if (tmp) { /* make sure wpan_dev exists */ list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) { if (wpan_dev->identifier != (u32)wpan_dev_id) continue; found = true; break; } if (!found) tmp = NULL; if (rdev && tmp != rdev) return ERR_PTR(-EINVAL); rdev = tmp; } } if (attrs[NL802154_ATTR_IFINDEX]) { int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]); netdev = __dev_get_by_index(netns, ifindex); if (netdev) { if (netdev->ieee802154_ptr) tmp = wpan_phy_to_rdev( netdev->ieee802154_ptr->wpan_phy); else tmp = NULL; /* not wireless device -- return error */ if (!tmp) return ERR_PTR(-EINVAL); /* mismatch -- return error */ if (rdev && tmp != rdev) return ERR_PTR(-EINVAL); rdev = tmp; } } if (!rdev) return ERR_PTR(-ENODEV); if (netns != wpan_phy_net(&rdev->wpan_phy)) return ERR_PTR(-ENODEV); return rdev; } /* This function returns a pointer to the driver * that the genl_info item that is passed refers to. * * The result of this can be a PTR_ERR and hence must * be checked with IS_ERR() for errors. */ static struct cfg802154_registered_device * cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info) { return __cfg802154_rdev_from_attrs(netns, info->attrs); } /* policy for the attributes */ static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = { [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 }, [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING, .len = 20-1 }, [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 }, [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 }, [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 }, [NL802154_ATTR_PAGE] = NLA_POLICY_MAX(NLA_U8, IEEE802154_MAX_PAGE), [NL802154_ATTR_CHANNEL] = NLA_POLICY_MAX(NLA_U8, IEEE802154_MAX_CHANNEL), [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, }, [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, }, [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, }, [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, }, [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, }, [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, }, [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, }, [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, }, [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, }, [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, }, [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, }, [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, }, [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED }, [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED }, [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 }, [NL802154_ATTR_PID] = { .type = NLA_U32 }, [NL802154_ATTR_NETNS_FD] = { .type = NLA_U32 }, [NL802154_ATTR_COORDINATOR] = { .type = NLA_NESTED }, [NL802154_ATTR_SCAN_TYPE] = NLA_POLICY_RANGE(NLA_U8, NL802154_SCAN_ED, NL802154_SCAN_RIT_PASSIVE), [NL802154_ATTR_SCAN_CHANNELS] = NLA_POLICY_MASK(NLA_U32, GENMASK(IEEE802154_MAX_CHANNEL, 0)), [NL802154_ATTR_SCAN_PREAMBLE_CODES] = { .type = NLA_REJECT }, [NL802154_ATTR_SCAN_MEAN_PRF] = { .type = NLA_REJECT }, [NL802154_ATTR_SCAN_DURATION] = NLA_POLICY_MAX(NLA_U8, IEEE802154_MAX_SCAN_DURATION), [NL802154_ATTR_SCAN_DONE_REASON] = NLA_POLICY_RANGE(NLA_U8, NL802154_SCAN_DONE_REASON_FINISHED, NL802154_SCAN_DONE_REASON_ABORTED), [NL802154_ATTR_BEACON_INTERVAL] = NLA_POLICY_MAX(NLA_U8, IEEE802154_ACTIVE_SCAN_DURATION), [NL802154_ATTR_MAX_ASSOCIATIONS] = { .type = NLA_U32 }, [NL802154_ATTR_PEER] = { .type = NLA_NESTED }, #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, }, [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, }, [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, }, [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 }, [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED }, [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED }, [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED }, [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED }, #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ }; static int nl802154_prepare_wpan_dev_dump(struct sk_buff *skb, struct netlink_callback *cb, struct cfg802154_registered_device **rdev, struct wpan_dev **wpan_dev) { const struct genl_dumpit_info *info = genl_dumpit_info(cb); int err; rtnl_lock(); if (!cb->args[0]) { *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk), info->info.attrs); if (IS_ERR(*wpan_dev)) { err = PTR_ERR(*wpan_dev); goto out_unlock; } *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy); /* 0 is the first index - add 1 to parse only once */ cb->args[0] = (*rdev)->wpan_phy_idx + 1; cb->args[1] = (*wpan_dev)->identifier; } else { /* subtract the 1 again here */ struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1); struct wpan_dev *tmp; if (!wpan_phy) { err = -ENODEV; goto out_unlock; } *rdev = wpan_phy_to_rdev(wpan_phy); *wpan_dev = NULL; list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) { if (tmp->identifier == cb->args[1]) { *wpan_dev = tmp; break; } } if (!*wpan_dev) { err = -ENODEV; goto out_unlock; } } return 0; out_unlock: rtnl_unlock(); return err; } static void nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev) { rtnl_unlock(); } /* message building helper */ static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq, int flags, u8 cmd) { /* since there is no private header just add the generic one */ return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd); } static int nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask) { struct nlattr *nl_flags = nla_nest_start_noflag(msg, attr); int i; if (!nl_flags) return -ENOBUFS; i = 0; while (mask) { if ((mask & 1) && nla_put_flag(msg, i)) return -ENOBUFS; mask >>= 1; i++; } nla_nest_end(msg, nl_flags); return 0; } static int nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev, struct sk_buff *msg) { struct nlattr *nl_page; unsigned long page; nl_page = nla_nest_start_noflag(msg, NL802154_ATTR_CHANNELS_SUPPORTED); if (!nl_page) return -ENOBUFS; for (page = 0; page <= IEEE802154_MAX_PAGE; page++) { if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL, rdev->wpan_phy.supported.channels[page])) return -ENOBUFS; } nla_nest_end(msg, nl_page); return 0; } static int nl802154_put_capabilities(struct sk_buff *msg, struct cfg802154_registered_device *rdev) { const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported; struct nlattr *nl_caps, *nl_channels; int i; nl_caps = nla_nest_start_noflag(msg, NL802154_ATTR_WPAN_PHY_CAPS); if (!nl_caps) return -ENOBUFS; nl_channels = nla_nest_start_noflag(msg, NL802154_CAP_ATTR_CHANNELS); if (!nl_channels) return -ENOBUFS; for (i = 0; i <= IEEE802154_MAX_PAGE; i++) { if (caps->channels[i]) { if (nl802154_put_flags(msg, i, caps->channels[i])) return -ENOBUFS; } } nla_nest_end(msg, nl_channels); if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { struct nlattr *nl_ed_lvls; nl_ed_lvls = nla_nest_start_noflag(msg, NL802154_CAP_ATTR_CCA_ED_LEVELS); if (!nl_ed_lvls) return -ENOBUFS; for (i = 0; i < caps->cca_ed_levels_size; i++) { if (nla_put_s32(msg, i, caps->cca_ed_levels[i])) return -ENOBUFS; } nla_nest_end(msg, nl_ed_lvls); } if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { struct nlattr *nl_tx_pwrs; nl_tx_pwrs = nla_nest_start_noflag(msg, NL802154_CAP_ATTR_TX_POWERS); if (!nl_tx_pwrs) return -ENOBUFS; for (i = 0; i < caps->tx_powers_size; i++) { if (nla_put_s32(msg, i, caps->tx_powers[i])) return -ENOBUFS; } nla_nest_end(msg, nl_tx_pwrs); } if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES, caps->cca_modes) || nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS, caps->cca_opts)) return -ENOBUFS; } if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) || nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) || nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) || nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) || nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS, caps->min_csma_backoffs) || nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS, caps->max_csma_backoffs) || nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES, caps->min_frame_retries) || nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES, caps->max_frame_retries) || nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES, caps->iftypes) || nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt)) return -ENOBUFS; nla_nest_end(msg, nl_caps); return 0; } static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev, enum nl802154_commands cmd, struct sk_buff *msg, u32 portid, u32 seq, int flags) { struct nlattr *nl_cmds; void *hdr; int i; hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); if (!hdr) return -ENOBUFS; if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME, wpan_phy_name(&rdev->wpan_phy)) || nla_put_u32(msg, NL802154_ATTR_GENERATION, cfg802154_rdev_list_generation)) goto nla_put_failure; if (cmd != NL802154_CMD_NEW_WPAN_PHY) goto finish; /* DUMP PHY PIB */ /* current channel settings */ if (nla_put_u8(msg, NL802154_ATTR_PAGE, rdev->wpan_phy.current_page) || nla_put_u8(msg, NL802154_ATTR_CHANNEL, rdev->wpan_phy.current_channel)) goto nla_put_failure; /* TODO remove this behaviour, we still keep support it for a while * so users can change the behaviour to the new one. */ if (nl802154_send_wpan_phy_channels(rdev, msg)) goto nla_put_failure; /* cca mode */ if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE, rdev->wpan_phy.cca.mode)) goto nla_put_failure; if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) { if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT, rdev->wpan_phy.cca.opt)) goto nla_put_failure; } } if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { if (nla_put_s32(msg, NL802154_ATTR_TX_POWER, rdev->wpan_phy.transmit_power)) goto nla_put_failure; } if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL, rdev->wpan_phy.cca_ed_level)) goto nla_put_failure; } if (nl802154_put_capabilities(msg, rdev)) goto nla_put_failure; nl_cmds = nla_nest_start_noflag(msg, NL802154_ATTR_SUPPORTED_COMMANDS); if (!nl_cmds) goto nla_put_failure; i = 0; #define CMD(op, n) \ do { \ if (rdev->ops->op) { \ i++; \ if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \ goto nla_put_failure; \ } \ } while (0) CMD(add_virtual_intf, NEW_INTERFACE); CMD(del_virtual_intf, DEL_INTERFACE); CMD(set_channel, SET_CHANNEL); CMD(set_pan_id, SET_PAN_ID); CMD(set_short_addr, SET_SHORT_ADDR); CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT); CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS); CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES); CMD(set_lbt_mode, SET_LBT_MODE); CMD(set_ackreq_default, SET_ACKREQ_DEFAULT); if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) CMD(set_tx_power, SET_TX_POWER); if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) CMD(set_cca_ed_level, SET_CCA_ED_LEVEL); if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) CMD(set_cca_mode, SET_CCA_MODE); #undef CMD nla_nest_end(msg, nl_cmds); finish: genlmsg_end(msg, hdr); return 0; nla_put_failure: genlmsg_cancel(msg, hdr); return -EMSGSIZE; } struct nl802154_dump_wpan_phy_state { s64 filter_wpan_phy; long start; }; static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb, struct netlink_callback *cb, struct nl802154_dump_wpan_phy_state *state) { const struct genl_dumpit_info *info = genl_dumpit_info(cb); struct nlattr **tb = info->info.attrs; if (tb[NL802154_ATTR_WPAN_PHY]) state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]); if (tb[NL802154_ATTR_WPAN_DEV]) state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32; if (tb[NL802154_ATTR_IFINDEX]) { struct net_device *netdev; struct cfg802154_registered_device *rdev; int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]); netdev = __dev_get_by_index(&init_net, ifidx); if (!netdev) return -ENODEV; if (netdev->ieee802154_ptr) { rdev = wpan_phy_to_rdev( netdev->ieee802154_ptr->wpan_phy); state->filter_wpan_phy = rdev->wpan_phy_idx; } } return 0; } static int nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb) { int idx = 0, ret; struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0]; struct cfg802154_registered_device *rdev; rtnl_lock(); if (!state) { state = kzalloc(sizeof(*state), GFP_KERNEL); if (!state) { rtnl_unlock(); return -ENOMEM; } state->filter_wpan_phy = -1; ret = nl802154_dump_wpan_phy_parse(skb, cb, state); if (ret) { kfree(state); rtnl_unlock(); return ret; } cb->args[0] = (long)state; } list_for_each_entry(rdev, &cfg802154_rdev_list, list) { if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) continue; if (++idx <= state->start) continue; if (state->filter_wpan_phy != -1 && state->filter_wpan_phy != rdev->wpan_phy_idx) continue; /* attempt to fit multiple wpan_phy data chunks into the skb */ ret = nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, NLM_F_MULTI); if (ret < 0) { if ((ret == -ENOBUFS || ret == -EMSGSIZE) && !skb->len && cb->min_dump_alloc < 4096) { cb->min_dump_alloc = 4096; rtnl_unlock(); return 1; } idx--; break; } break; } rtnl_unlock(); state->start = idx; return skb->len; } static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb) { kfree((void *)cb->args[0]); return 0; } static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info) { struct sk_buff *msg; struct cfg802154_registered_device *rdev = info->user_ptr[0]; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) return -ENOMEM; if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg, info->snd_portid, info->snd_seq, 0) < 0) { nlmsg_free(msg); return -ENOBUFS; } return genlmsg_reply(msg, info); } static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev) { return (u64)wpan_dev->identifier | ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32); } #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL #include <net/ieee802154_netdev.h> static int ieee802154_llsec_send_key_id(struct sk_buff *msg, const struct ieee802154_llsec_key_id *desc) { struct nlattr *nl_dev_addr; if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode)) return -ENOBUFS; switch (desc->mode) { case NL802154_KEY_ID_MODE_IMPLICIT: nl_dev_addr = nla_nest_start_noflag(msg, NL802154_KEY_ID_ATTR_IMPLICIT); if (!nl_dev_addr) return -ENOBUFS; if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID, desc->device_addr.pan_id) || nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE, desc->device_addr.mode)) return -ENOBUFS; switch (desc->device_addr.mode) { case NL802154_DEV_ADDR_SHORT: if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT, desc->device_addr.short_addr)) return -ENOBUFS; break; case NL802154_DEV_ADDR_EXTENDED: if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED, desc->device_addr.extended_addr, NL802154_DEV_ADDR_ATTR_PAD)) return -ENOBUFS; break; default: /* userspace should handle unknown */ break; } nla_nest_end(msg, nl_dev_addr); break; case NL802154_KEY_ID_MODE_INDEX: break; case NL802154_KEY_ID_MODE_INDEX_SHORT: /* TODO renmae short_source? */ if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT, desc->short_source)) return -ENOBUFS; break; case NL802154_KEY_ID_MODE_INDEX_EXTENDED: if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED, desc->extended_source, NL802154_KEY_ID_ATTR_PAD)) return -ENOBUFS; break; default: /* userspace should handle unknown */ break; } /* TODO key_id to key_idx ? Check naming */ if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id)) return -ENOBUFS; } return 0; } static int nl802154_get_llsec_params(struct sk_buff *msg, struct cfg802154_registered_device *rdev, struct wpan_dev *wpan_dev) { struct nlattr *nl_key_id; struct ieee802154_llsec_params params; int ret; ret = rdev_get_llsec_params(rdev, wpan_dev, ¶ms); if (ret < 0) return ret; if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) || nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) || nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER, params.frame_counter)) return -ENOBUFS; nl_key_id = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_OUT_KEY_ID); if (!nl_key_id) return -ENOBUFS; ret = ieee802154_llsec_send_key_id(msg, ¶ms.out_key); if (ret < 0) return ret; nla_nest_end(msg, nl_key_id); return 0; } #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ static int nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, struct cfg802154_registered_device *rdev, struct wpan_dev *wpan_dev) { struct net_device *dev = wpan_dev->netdev; void *hdr; hdr = nl802154hdr_put(msg, portid, seq, flags, NL802154_CMD_NEW_INTERFACE); if (!hdr) return -1; if (dev && (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) || nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name))) goto nla_put_failure; if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) || nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) || nla_put_u32(msg, NL802154_ATTR_GENERATION, rdev->devlist_generation ^ (cfg802154_rdev_list_generation << 2))) goto nla_put_failure; /* address settings */ if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR, wpan_dev->extended_addr, NL802154_ATTR_PAD) || nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR, wpan_dev->short_addr) || nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id)) goto nla_put_failure; /* ARET handling */ if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES, wpan_dev->frame_retries) || nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) || nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS, wpan_dev->csma_retries) || nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be)) goto nla_put_failure; /* listen before transmit */ if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt)) goto nla_put_failure; /* ackreq default behaviour */ if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq)) goto nla_put_failure; #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) goto out; if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0) goto nla_put_failure; out: #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ genlmsg_end(msg, hdr); return 0; nla_put_failure: genlmsg_cancel(msg, hdr); return -EMSGSIZE; } static int nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) { int wp_idx = 0; int if_idx = 0; int wp_start = cb->args[0]; int if_start = cb->args[1]; struct cfg802154_registered_device *rdev; struct wpan_dev *wpan_dev; rtnl_lock(); list_for_each_entry(rdev, &cfg802154_rdev_list, list) { if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) continue; if (wp_idx < wp_start) { wp_idx++; continue; } if_idx = 0; list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { if (if_idx < if_start) { if_idx++; continue; } if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, NLM_F_MULTI, rdev, wpan_dev) < 0) { goto out; } if_idx++; } wp_idx++; } out: rtnl_unlock(); cb->args[0] = wp_idx; cb->args[1] = if_idx; return skb->len; } static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info) { struct sk_buff *msg; struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct wpan_dev *wdev = info->user_ptr[1]; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) return -ENOMEM; if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0, rdev, wdev) < 0) { nlmsg_free(msg); return -ENOBUFS; } return genlmsg_reply(msg, info); } static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC; __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL); /* TODO avoid failing a new interface * creation due to pending removal? */ if (!info->attrs[NL802154_ATTR_IFNAME]) return -EINVAL; if (info->attrs[NL802154_ATTR_IFTYPE]) { type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]); if (type > NL802154_IFTYPE_MAX || !(rdev->wpan_phy.supported.iftypes & BIT(type))) return -EINVAL; } if (info->attrs[NL802154_ATTR_EXTENDED_ADDR]) extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]); if (!rdev->ops->add_virtual_intf) return -EOPNOTSUPP; return rdev_add_virtual_intf(rdev, nla_data(info->attrs[NL802154_ATTR_IFNAME]), NET_NAME_USER, type, extended_addr); } static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct wpan_dev *wpan_dev = info->user_ptr[1]; if (!rdev->ops->del_virtual_intf) return -EOPNOTSUPP; /* If we remove a wpan device without a netdev then clear * user_ptr[1] so that nl802154_post_doit won't dereference it * to check if it needs to do dev_put(). Otherwise it crashes * since the wpan_dev has been freed, unlike with a netdev where * we need the dev_put() for the netdev to really be freed. */ if (!wpan_dev->netdev) info->user_ptr[1] = NULL; return rdev_del_virtual_intf(rdev, wpan_dev); } static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; u8 channel, page; if (!info->attrs[NL802154_ATTR_PAGE] || !info->attrs[NL802154_ATTR_CHANNEL]) return -EINVAL; page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]); channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]); /* check 802.15.4 constraints */ if (!ieee802154_chan_is_valid(&rdev->wpan_phy, page, channel)) return -EINVAL; return rdev_set_channel(rdev, page, channel); } static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct wpan_phy_cca cca; if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)) return -EOPNOTSUPP; if (!info->attrs[NL802154_ATTR_CCA_MODE]) return -EINVAL; cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]); /* checking 802.15.4 constraints */ if (cca.mode < NL802154_CCA_ENERGY || cca.mode > NL802154_CCA_ATTR_MAX || !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode))) return -EINVAL; if (cca.mode == NL802154_CCA_ENERGY_CARRIER) { if (!info->attrs[NL802154_ATTR_CCA_OPT]) return -EINVAL; cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]); if (cca.opt > NL802154_CCA_OPT_ATTR_MAX || !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt))) return -EINVAL; } return rdev_set_cca_mode(rdev, &cca); } static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; s32 ed_level; int i; if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)) return -EOPNOTSUPP; if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL]) return -EINVAL; ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]); for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) { if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i]) return rdev_set_cca_ed_level(rdev, ed_level); } return -EINVAL; } static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; s32 power; int i; if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)) return -EOPNOTSUPP; if (!info->attrs[NL802154_ATTR_TX_POWER]) return -EINVAL; power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]); for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) { if (power == rdev->wpan_phy.supported.tx_powers[i]) return rdev_set_tx_power(rdev, power); } return -EINVAL; } static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; __le16 pan_id; /* conflict here while tx/rx calls */ if (netif_running(dev)) return -EBUSY; if (wpan_dev->lowpan_dev) { if (netif_running(wpan_dev->lowpan_dev)) return -EBUSY; } /* don't change address fields on monitor */ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || !info->attrs[NL802154_ATTR_PAN_ID]) return -EINVAL; pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]); /* Only allow changing the PAN ID when the device has no more * associations ongoing to avoid confusing peers. */ if (cfg802154_device_is_associated(wpan_dev)) { NL_SET_ERR_MSG(info->extack, "Existing associations, changing PAN ID forbidden"); return -EINVAL; } return rdev_set_pan_id(rdev, wpan_dev, pan_id); } static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; __le16 short_addr; /* conflict here while tx/rx calls */ if (netif_running(dev)) return -EBUSY; if (wpan_dev->lowpan_dev) { if (netif_running(wpan_dev->lowpan_dev)) return -EBUSY; } /* don't change address fields on monitor */ if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || !info->attrs[NL802154_ATTR_SHORT_ADDR]) return -EINVAL; short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]); /* The short address only has a meaning when part of a PAN, after a * proper association procedure. However, we want to still offer the * possibility to create static networks so changing the short address * is only allowed when not already associated to other devices with * the official handshake. */ if (cfg802154_device_is_associated(wpan_dev)) { NL_SET_ERR_MSG(info->extack, "Existing associations, changing short address forbidden"); return -EINVAL; } return rdev_set_short_addr(rdev, wpan_dev, short_addr); } static int nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; u8 min_be, max_be; /* should be set on netif open inside phy settings */ if (netif_running(dev)) return -EBUSY; if (!info->attrs[NL802154_ATTR_MIN_BE] || !info->attrs[NL802154_ATTR_MAX_BE]) return -EINVAL; min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]); max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]); /* check 802.15.4 constraints */ if (min_be < rdev->wpan_phy.supported.min_minbe || min_be > rdev->wpan_phy.supported.max_minbe || max_be < rdev->wpan_phy.supported.min_maxbe || max_be > rdev->wpan_phy.supported.max_maxbe || min_be > max_be) return -EINVAL; return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be); } static int nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; u8 max_csma_backoffs; /* conflict here while other running iface settings */ if (netif_running(dev)) return -EBUSY; if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]) return -EINVAL; max_csma_backoffs = nla_get_u8( info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]); /* check 802.15.4 constraints */ if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs || max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs) return -EINVAL; return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs); } static int nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; s8 max_frame_retries; if (netif_running(dev)) return -EBUSY; if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]) return -EINVAL; max_frame_retries = nla_get_s8( info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]); /* check 802.15.4 constraints */ if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries || max_frame_retries > rdev->wpan_phy.supported.max_frame_retries) return -EINVAL; return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries); } static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; int mode; if (netif_running(dev)) return -EBUSY; if (!info->attrs[NL802154_ATTR_LBT_MODE]) return -EINVAL; mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]); if (mode != 0 && mode != 1) return -EINVAL; if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt)) return -EINVAL; return rdev_set_lbt_mode(rdev, wpan_dev, mode); } static int nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; int ackreq; if (netif_running(dev)) return -EBUSY; if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]) return -EINVAL; ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]); if (ackreq != 0 && ackreq != 1) return -EINVAL; return rdev_set_ackreq_default(rdev, wpan_dev, ackreq); } static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net *net; int err; if (info->attrs[NL802154_ATTR_PID]) { u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]); net = get_net_ns_by_pid(pid); } else if (info->attrs[NL802154_ATTR_NETNS_FD]) { u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]); net = get_net_ns_by_fd(fd); } else { return -EINVAL; } if (IS_ERR(net)) return PTR_ERR(net); err = 0; /* check if anything to do */ if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net)) err = cfg802154_switch_netns(rdev, net); put_net(net); return err; } static int nl802154_prep_scan_event_msg(struct sk_buff *msg, struct cfg802154_registered_device *rdev, struct wpan_dev *wpan_dev, u32 portid, u32 seq, int flags, u8 cmd, struct ieee802154_coord_desc *desc) { struct nlattr *nla; void *hdr; hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); if (!hdr) return -ENOBUFS; if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx)) goto nla_put_failure; if (wpan_dev->netdev && nla_put_u32(msg, NL802154_ATTR_IFINDEX, wpan_dev->netdev->ifindex)) goto nla_put_failure; if (nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, wpan_dev_id(wpan_dev), NL802154_ATTR_PAD)) goto nla_put_failure; nla = nla_nest_start_noflag(msg, NL802154_ATTR_COORDINATOR); if (!nla) goto nla_put_failure; if (nla_put(msg, NL802154_COORD_PANID, IEEE802154_PAN_ID_LEN, &desc->addr.pan_id)) goto nla_put_failure; if (desc->addr.mode == IEEE802154_ADDR_SHORT) { if (nla_put(msg, NL802154_COORD_ADDR, IEEE802154_SHORT_ADDR_LEN, &desc->addr.short_addr)) goto nla_put_failure; } else { if (nla_put(msg, NL802154_COORD_ADDR, IEEE802154_EXTENDED_ADDR_LEN, &desc->addr.extended_addr)) goto nla_put_failure; } if (nla_put_u8(msg, NL802154_COORD_CHANNEL, desc->channel)) goto nla_put_failure; if (nla_put_u8(msg, NL802154_COORD_PAGE, desc->page)) goto nla_put_failure; if (nla_put_u16(msg, NL802154_COORD_SUPERFRAME_SPEC, desc->superframe_spec)) goto nla_put_failure; if (nla_put_u8(msg, NL802154_COORD_LINK_QUALITY, desc->link_quality)) goto nla_put_failure; if (desc->gts_permit && nla_put_flag(msg, NL802154_COORD_GTS_PERMIT)) goto nla_put_failure; /* TODO: NL802154_COORD_PAYLOAD_DATA if any */ nla_nest_end(msg, nla); genlmsg_end(msg, hdr); return 0; nla_put_failure: genlmsg_cancel(msg, hdr); return -EMSGSIZE; } int nl802154_scan_event(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, struct ieee802154_coord_desc *desc) { struct cfg802154_registered_device *rdev = wpan_phy_to_rdev(wpan_phy); struct sk_buff *msg; int ret; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); if (!msg) return -ENOMEM; ret = nl802154_prep_scan_event_msg(msg, rdev, wpan_dev, 0, 0, 0, NL802154_CMD_SCAN_EVENT, desc); if (ret < 0) { nlmsg_free(msg); return ret; } return genlmsg_multicast_netns(&nl802154_fam, wpan_phy_net(wpan_phy), msg, 0, NL802154_MCGRP_SCAN, GFP_ATOMIC); } EXPORT_SYMBOL_GPL(nl802154_scan_event); static int nl802154_trigger_scan(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct wpan_phy *wpan_phy = &rdev->wpan_phy; struct cfg802154_scan_request *request; u8 type; int err; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { NL_SET_ERR_MSG(info->extack, "Monitors are not allowed to perform scans"); return -EOPNOTSUPP; } if (!info->attrs[NL802154_ATTR_SCAN_TYPE]) { NL_SET_ERR_MSG(info->extack, "Malformed request, missing scan type"); return -EINVAL; } if (wpan_phy->flags & WPAN_PHY_FLAG_DATAGRAMS_ONLY) { NL_SET_ERR_MSG(info->extack, "PHY only supports datagrams"); return -EOPNOTSUPP; } request = kzalloc(sizeof(*request), GFP_KERNEL); if (!request) return -ENOMEM; request->wpan_dev = wpan_dev; request->wpan_phy = wpan_phy; type = nla_get_u8(info->attrs[NL802154_ATTR_SCAN_TYPE]); switch (type) { case NL802154_SCAN_ACTIVE: case NL802154_SCAN_PASSIVE: request->type = type; break; default: NL_SET_ERR_MSG_FMT(info->extack, "Unsupported scan type: %d", type); err = -EINVAL; goto free_request; } /* Use current page by default */ if (info->attrs[NL802154_ATTR_PAGE]) request->page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]); else request->page = wpan_phy->current_page; /* Scan all supported channels by default */ if (info->attrs[NL802154_ATTR_SCAN_CHANNELS]) request->channels = nla_get_u32(info->attrs[NL802154_ATTR_SCAN_CHANNELS]); else request->channels = wpan_phy->supported.channels[request->page]; /* Use maximum duration order by default */ if (info->attrs[NL802154_ATTR_SCAN_DURATION]) request->duration = nla_get_u8(info->attrs[NL802154_ATTR_SCAN_DURATION]); else request->duration = IEEE802154_MAX_SCAN_DURATION; err = rdev_trigger_scan(rdev, request); if (err) { pr_err("Failure starting scanning (%d)\n", err); goto free_request; } return 0; free_request: kfree(request); return err; } static int nl802154_prep_scan_msg(struct sk_buff *msg, struct cfg802154_registered_device *rdev, struct wpan_dev *wpan_dev, u32 portid, u32 seq, int flags, u8 cmd, u8 arg) { void *hdr; hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); if (!hdr) return -ENOBUFS; if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx)) goto nla_put_failure; if (wpan_dev->netdev && nla_put_u32(msg, NL802154_ATTR_IFINDEX, wpan_dev->netdev->ifindex)) goto nla_put_failure; if (nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, wpan_dev_id(wpan_dev), NL802154_ATTR_PAD)) goto nla_put_failure; if (cmd == NL802154_CMD_SCAN_DONE && nla_put_u8(msg, NL802154_ATTR_SCAN_DONE_REASON, arg)) goto nla_put_failure; genlmsg_end(msg, hdr); return 0; nla_put_failure: genlmsg_cancel(msg, hdr); return -EMSGSIZE; } static int nl802154_send_scan_msg(struct cfg802154_registered_device *rdev, struct wpan_dev *wpan_dev, u8 cmd, u8 arg) { struct sk_buff *msg; int ret; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) return -ENOMEM; ret = nl802154_prep_scan_msg(msg, rdev, wpan_dev, 0, 0, 0, cmd, arg); if (ret < 0) { nlmsg_free(msg); return ret; } return genlmsg_multicast_netns(&nl802154_fam, wpan_phy_net(&rdev->wpan_phy), msg, 0, NL802154_MCGRP_SCAN, GFP_KERNEL); } int nl802154_scan_started(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev) { struct cfg802154_registered_device *rdev = wpan_phy_to_rdev(wpan_phy); int err; /* Ignore errors when there are no listeners */ err = nl802154_send_scan_msg(rdev, wpan_dev, NL802154_CMD_TRIGGER_SCAN, 0); if (err == -ESRCH) err = 0; return err; } EXPORT_SYMBOL_GPL(nl802154_scan_started); int nl802154_scan_done(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, enum nl802154_scan_done_reasons reason) { struct cfg802154_registered_device *rdev = wpan_phy_to_rdev(wpan_phy); int err; /* Ignore errors when there are no listeners */ err = nl802154_send_scan_msg(rdev, wpan_dev, NL802154_CMD_SCAN_DONE, reason); if (err == -ESRCH) err = 0; return err; } EXPORT_SYMBOL_GPL(nl802154_scan_done); static int nl802154_abort_scan(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; /* Resources are released in the notification helper above */ return rdev_abort_scan(rdev, wpan_dev); } static int nl802154_send_beacons(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct wpan_phy *wpan_phy = &rdev->wpan_phy; struct cfg802154_beacon_request *request; int err; if (wpan_dev->iftype != NL802154_IFTYPE_COORD) { NL_SET_ERR_MSG(info->extack, "Only coordinators can send beacons"); return -EOPNOTSUPP; } if (wpan_dev->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST)) { NL_SET_ERR_MSG(info->extack, "Device is not part of any PAN"); return -EPERM; } if (wpan_phy->flags & WPAN_PHY_FLAG_DATAGRAMS_ONLY) { NL_SET_ERR_MSG(info->extack, "PHY only supports datagrams"); return -EOPNOTSUPP; } request = kzalloc(sizeof(*request), GFP_KERNEL); if (!request) return -ENOMEM; request->wpan_dev = wpan_dev; request->wpan_phy = wpan_phy; /* Use maximum duration order by default */ if (info->attrs[NL802154_ATTR_BEACON_INTERVAL]) request->interval = nla_get_u8(info->attrs[NL802154_ATTR_BEACON_INTERVAL]); else request->interval = IEEE802154_MAX_SCAN_DURATION; err = rdev_send_beacons(rdev, request); if (err) { pr_err("Failure starting sending beacons (%d)\n", err); goto free_request; } return 0; free_request: kfree(request); return err; } void nl802154_beaconing_done(struct wpan_dev *wpan_dev) { /* NOP */ } EXPORT_SYMBOL_GPL(nl802154_beaconing_done); static int nl802154_stop_beacons(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; /* Resources are released in the notification helper above */ return rdev_stop_beacons(rdev, wpan_dev); } static int nl802154_associate(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev; struct wpan_phy *wpan_phy; struct ieee802154_addr coord; int err; wpan_dev = dev->ieee802154_ptr; wpan_phy = &rdev->wpan_phy; if (wpan_phy->flags & WPAN_PHY_FLAG_DATAGRAMS_ONLY) { NL_SET_ERR_MSG(info->extack, "PHY only supports datagrams"); return -EOPNOTSUPP; } if (!info->attrs[NL802154_ATTR_PAN_ID] || !info->attrs[NL802154_ATTR_EXTENDED_ADDR]) return -EINVAL; coord.pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]); coord.mode = IEEE802154_ADDR_LONG; coord.extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]); mutex_lock(&wpan_dev->association_lock); err = rdev_associate(rdev, wpan_dev, &coord); mutex_unlock(&wpan_dev->association_lock); if (err) pr_err("Association with PAN ID 0x%x failed (%d)\n", le16_to_cpu(coord.pan_id), err); return err; } static int nl802154_disassociate(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct wpan_phy *wpan_phy = &rdev->wpan_phy; struct ieee802154_addr target; if (wpan_phy->flags & WPAN_PHY_FLAG_DATAGRAMS_ONLY) { NL_SET_ERR_MSG(info->extack, "PHY only supports datagrams"); return -EOPNOTSUPP; } target.pan_id = wpan_dev->pan_id; if (info->attrs[NL802154_ATTR_EXTENDED_ADDR]) { target.mode = IEEE802154_ADDR_LONG; target.extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]); } else if (info->attrs[NL802154_ATTR_SHORT_ADDR]) { target.mode = IEEE802154_ADDR_SHORT; target.short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]); } else { NL_SET_ERR_MSG(info->extack, "Device address is missing"); return -EINVAL; } mutex_lock(&wpan_dev->association_lock); rdev_disassociate(rdev, wpan_dev, &target); mutex_unlock(&wpan_dev->association_lock); return 0; } static int nl802154_set_max_associations(struct sk_buff *skb, struct genl_info *info) { struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; unsigned int max_assoc; if (!info->attrs[NL802154_ATTR_MAX_ASSOCIATIONS]) { NL_SET_ERR_MSG(info->extack, "No maximum number of association given"); return -EINVAL; } max_assoc = nla_get_u32(info->attrs[NL802154_ATTR_MAX_ASSOCIATIONS]); mutex_lock(&wpan_dev->association_lock); cfg802154_set_max_associations(wpan_dev, max_assoc); mutex_unlock(&wpan_dev->association_lock); return 0; } static int nl802154_send_peer_info(struct sk_buff *msg, struct netlink_callback *cb, u32 seq, int flags, struct cfg802154_registered_device *rdev, struct wpan_dev *wpan_dev, struct ieee802154_pan_device *peer, enum nl802154_peer_type type) { struct nlattr *nla; void *hdr; ASSERT_RTNL(); hdr = nl802154hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, NL802154_CMD_LIST_ASSOCIATIONS); if (!hdr) return -ENOBUFS; genl_dump_check_consistent(cb, hdr); nla = nla_nest_start_noflag(msg, NL802154_ATTR_PEER); if (!nla) goto nla_put_failure; if (nla_put_u8(msg, NL802154_DEV_ADDR_ATTR_PEER_TYPE, type)) goto nla_put_failure; if (nla_put_u8(msg, NL802154_DEV_ADDR_ATTR_MODE, peer->mode)) goto nla_put_failure; if (nla_put(msg, NL802154_DEV_ADDR_ATTR_SHORT, IEEE802154_SHORT_ADDR_LEN, &peer->short_addr)) goto nla_put_failure; if (nla_put(msg, NL802154_DEV_ADDR_ATTR_EXTENDED, IEEE802154_EXTENDED_ADDR_LEN, &peer->extended_addr)) goto nla_put_failure; nla_nest_end(msg, nla); genlmsg_end(msg, hdr); return 0; nla_put_failure: genlmsg_cancel(msg, hdr); return -EMSGSIZE; } static int nl802154_list_associations(struct sk_buff *skb, struct netlink_callback *cb) { struct cfg802154_registered_device *rdev; struct ieee802154_pan_device *child; struct wpan_dev *wpan_dev; int err; err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); if (err) return err; mutex_lock(&wpan_dev->association_lock); if (cb->args[2]) goto out; if (wpan_dev->parent) { err = nl802154_send_peer_info(skb, cb, cb->nlh->nlmsg_seq, NLM_F_MULTI, rdev, wpan_dev, wpan_dev->parent, NL802154_PEER_TYPE_PARENT); if (err < 0) goto out_err; } list_for_each_entry(child, &wpan_dev->children, node) { err = nl802154_send_peer_info(skb, cb, cb->nlh->nlmsg_seq, NLM_F_MULTI, rdev, wpan_dev, child, NL802154_PEER_TYPE_CHILD); if (err < 0) goto out_err; } cb->args[2] = 1; out: err = skb->len; out_err: mutex_unlock(&wpan_dev->association_lock); nl802154_finish_wpan_dev_dump(rdev); return err; } #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = { [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 }, [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 }, [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 }, [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 }, }; static int ieee802154_llsec_parse_dev_addr(struct nlattr *nla, struct ieee802154_addr *addr) { struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1]; if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, nl802154_dev_addr_policy, NULL)) return -EINVAL; if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] || !attrs[NL802154_DEV_ADDR_ATTR_MODE]) return -EINVAL; addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]); addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]); switch (addr->mode) { case NL802154_DEV_ADDR_SHORT: if (!attrs[NL802154_DEV_ADDR_ATTR_SHORT]) return -EINVAL; addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]); break; case NL802154_DEV_ADDR_EXTENDED: if (!attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]) return -EINVAL; addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]); break; default: return -EINVAL; } return 0; } static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = { [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 }, [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 }, [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED }, [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 }, [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 }, }; static int ieee802154_llsec_parse_key_id(struct nlattr *nla, struct ieee802154_llsec_key_id *desc) { struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1]; if (!nla || nla_parse_nested_deprecated(attrs, NL802154_KEY_ID_ATTR_MAX, nla, nl802154_key_id_policy, NULL)) return -EINVAL; if (!attrs[NL802154_KEY_ID_ATTR_MODE]) return -EINVAL; desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]); switch (desc->mode) { case NL802154_KEY_ID_MODE_IMPLICIT: if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT]) return -EINVAL; if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT], &desc->device_addr) < 0) return -EINVAL; break; case NL802154_KEY_ID_MODE_INDEX: break; case NL802154_KEY_ID_MODE_INDEX_SHORT: if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]) return -EINVAL; desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]); break; case NL802154_KEY_ID_MODE_INDEX_EXTENDED: if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]) return -EINVAL; desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]); break; default: return -EINVAL; } if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { if (!attrs[NL802154_KEY_ID_ATTR_INDEX]) return -EINVAL; /* TODO change id to idx */ desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]); } return 0; } static int nl802154_set_llsec_params(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct ieee802154_llsec_params params; u32 changed = 0; int ret; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) return -EOPNOTSUPP; if (info->attrs[NL802154_ATTR_SEC_ENABLED]) { u8 enabled; enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); if (enabled != 0 && enabled != 1) return -EINVAL; params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); changed |= IEEE802154_LLSEC_PARAM_ENABLED; } if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) { ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID], ¶ms.out_key); if (ret < 0) return ret; changed |= IEEE802154_LLSEC_PARAM_OUT_KEY; } if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) { params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]); if (params.out_level > NL802154_SECLEVEL_MAX) return -EINVAL; changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL; } if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) { params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]); changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER; } return rdev_set_llsec_params(rdev, wpan_dev, ¶ms, changed); } static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid, u32 seq, int flags, struct cfg802154_registered_device *rdev, struct net_device *dev, const struct ieee802154_llsec_key_entry *key) { void *hdr; u32 commands[NL802154_CMD_FRAME_NR_IDS / 32]; struct nlattr *nl_key, *nl_key_id; hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); if (!hdr) return -ENOBUFS; if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) goto nla_put_failure; nl_key = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_KEY); if (!nl_key) goto nla_put_failure; nl_key_id = nla_nest_start_noflag(msg, NL802154_KEY_ATTR_ID); if (!nl_key_id) goto nla_put_failure; if (ieee802154_llsec_send_key_id(msg, &key->id) < 0) goto nla_put_failure; nla_nest_end(msg, nl_key_id); if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES, key->key->frame_types)) goto nla_put_failure; if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) { /* TODO for each nested */ memset(commands, 0, sizeof(commands)); commands[7] = key->key->cmd_frame_ids; if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS, sizeof(commands), commands)) goto nla_put_failure; } if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE, key->key->key)) goto nla_put_failure; nla_nest_end(msg, nl_key); genlmsg_end(msg, hdr); return 0; nla_put_failure: genlmsg_cancel(msg, hdr); return -EMSGSIZE; } static int nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb) { struct cfg802154_registered_device *rdev = NULL; struct ieee802154_llsec_key_entry *key; struct ieee802154_llsec_table *table; struct wpan_dev *wpan_dev; int err; err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); if (err) return err; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { err = skb->len; goto out_err; } if (!wpan_dev->netdev) { err = -EINVAL; goto out_err; } rdev_lock_llsec_table(rdev, wpan_dev); rdev_get_llsec_table(rdev, wpan_dev, &table); /* TODO make it like station dump */ if (cb->args[2]) goto out; list_for_each_entry(key, &table->keys, list) { if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, NLM_F_MULTI, rdev, wpan_dev->netdev, key) < 0) { /* TODO */ err = -EIO; rdev_unlock_llsec_table(rdev, wpan_dev); goto out_err; } } cb->args[2] = 1; out: rdev_unlock_llsec_table(rdev, wpan_dev); err = skb->len; out_err: nl802154_finish_wpan_dev_dump(rdev); return err; } static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = { [NL802154_KEY_ATTR_ID] = { NLA_NESTED }, /* TODO handle it as for_each_nested and NLA_FLAG? */ [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 }, /* TODO handle it as for_each_nested, not static array? */ [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 }, [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE }, }; static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; struct ieee802154_llsec_key key = { }; struct ieee802154_llsec_key_id id = { }; u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { }; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) return -EOPNOTSUPP; if (!info->attrs[NL802154_ATTR_SEC_KEY] || nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack)) return -EINVAL; if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] || !attrs[NL802154_KEY_ATTR_BYTES]) return -EINVAL; if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) return -ENOBUFS; key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]); if (key.frame_types > BIT(NL802154_FRAME_MAX) || ((key.frame_types & BIT(NL802154_FRAME_CMD)) && !attrs[NL802154_KEY_ATTR_USAGE_CMDS])) return -EINVAL; if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) { /* TODO for each nested */ nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS], NL802154_CMD_FRAME_NR_IDS / 8); /* TODO understand the -EINVAL logic here? last condition */ if (commands[0] || commands[1] || commands[2] || commands[3] || commands[4] || commands[5] || commands[6] || commands[7] > BIT(NL802154_CMD_FRAME_MAX)) return -EINVAL; key.cmd_frame_ids = commands[7]; } else { key.cmd_frame_ids = 0; } nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE); if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) return -ENOBUFS; return rdev_add_llsec_key(rdev, wpan_dev, &id, &key); } static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; struct ieee802154_llsec_key_id id; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) return -EOPNOTSUPP; if (!info->attrs[NL802154_ATTR_SEC_KEY] || nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack)) return -EINVAL; if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) return -ENOBUFS; return rdev_del_llsec_key(rdev, wpan_dev, &id); } static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid, u32 seq, int flags, struct cfg802154_registered_device *rdev, struct net_device *dev, const struct ieee802154_llsec_device *dev_desc) { void *hdr; struct nlattr *nl_device; hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); if (!hdr) return -ENOBUFS; if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) goto nla_put_failure; nl_device = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVICE); if (!nl_device) goto nla_put_failure; if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER, dev_desc->frame_counter) || nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) || nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR, dev_desc->short_addr) || nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR, dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) || nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT, dev_desc->seclevel_exempt) || nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode)) goto nla_put_failure; nla_nest_end(msg, nl_device); genlmsg_end(msg, hdr); return 0; nla_put_failure: genlmsg_cancel(msg, hdr); return -EMSGSIZE; } static int nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb) { struct cfg802154_registered_device *rdev = NULL; struct ieee802154_llsec_device *dev; struct ieee802154_llsec_table *table; struct wpan_dev *wpan_dev; int err; err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); if (err) return err; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { err = skb->len; goto out_err; } if (!wpan_dev->netdev) { err = -EINVAL; goto out_err; } rdev_lock_llsec_table(rdev, wpan_dev); rdev_get_llsec_table(rdev, wpan_dev, &table); /* TODO make it like station dump */ if (cb->args[2]) goto out; list_for_each_entry(dev, &table->devices, list) { if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, NLM_F_MULTI, rdev, wpan_dev->netdev, dev) < 0) { /* TODO */ err = -EIO; rdev_unlock_llsec_table(rdev, wpan_dev); goto out_err; } } cb->args[2] = 1; out: rdev_unlock_llsec_table(rdev, wpan_dev); err = skb->len; out_err: nl802154_finish_wpan_dev_dump(rdev); return err; } static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = { [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 }, [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 }, [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 }, [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 }, [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 }, }; static int ieee802154_llsec_parse_device(struct nlattr *nla, struct ieee802154_llsec_device *dev) { struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, nla, nl802154_dev_policy, NULL)) return -EINVAL; memset(dev, 0, sizeof(*dev)); if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] || !attrs[NL802154_DEV_ATTR_PAN_ID] || !attrs[NL802154_DEV_ATTR_SHORT_ADDR] || !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] || !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] || !attrs[NL802154_DEV_ATTR_KEY_MODE]) return -EINVAL; /* TODO be32 */ dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]); dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]); dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]); /* TODO rename hwaddr to extended_addr */ dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]); dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]); if (dev->key_mode > NL802154_DEVKEY_MAX || (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1)) return -EINVAL; return 0; } static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct ieee802154_llsec_device dev_desc; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) return -EOPNOTSUPP; if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE], &dev_desc) < 0) return -EINVAL; return rdev_add_device(rdev, wpan_dev, &dev_desc); } static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; __le64 extended_addr; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) return -EOPNOTSUPP; if (!info->attrs[NL802154_ATTR_SEC_DEVICE] || nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVICE], nl802154_dev_policy, info->extack)) return -EINVAL; if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]) return -EINVAL; extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); return rdev_del_device(rdev, wpan_dev, extended_addr); } static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid, u32 seq, int flags, struct cfg802154_registered_device *rdev, struct net_device *dev, __le64 extended_addr, const struct ieee802154_llsec_device_key *devkey) { void *hdr; struct nlattr *nl_devkey, *nl_key_id; hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); if (!hdr) return -ENOBUFS; if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) goto nla_put_failure; nl_devkey = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVKEY); if (!nl_devkey) goto nla_put_failure; if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR, extended_addr, NL802154_DEVKEY_ATTR_PAD) || nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER, devkey->frame_counter)) goto nla_put_failure; nl_key_id = nla_nest_start_noflag(msg, NL802154_DEVKEY_ATTR_ID); if (!nl_key_id) goto nla_put_failure; if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0) goto nla_put_failure; nla_nest_end(msg, nl_key_id); nla_nest_end(msg, nl_devkey); genlmsg_end(msg, hdr); return 0; nla_put_failure: genlmsg_cancel(msg, hdr); return -EMSGSIZE; } static int nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb) { struct cfg802154_registered_device *rdev = NULL; struct ieee802154_llsec_device_key *kpos; struct ieee802154_llsec_device *dpos; struct ieee802154_llsec_table *table; struct wpan_dev *wpan_dev; int err; err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); if (err) return err; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { err = skb->len; goto out_err; } if (!wpan_dev->netdev) { err = -EINVAL; goto out_err; } rdev_lock_llsec_table(rdev, wpan_dev); rdev_get_llsec_table(rdev, wpan_dev, &table); /* TODO make it like station dump */ if (cb->args[2]) goto out; /* TODO look if remove devkey and do some nested attribute */ list_for_each_entry(dpos, &table->devices, list) { list_for_each_entry(kpos, &dpos->keys, list) { if (nl802154_send_devkey(skb, NL802154_CMD_NEW_SEC_LEVEL, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, NLM_F_MULTI, rdev, wpan_dev->netdev, dpos->hwaddr, kpos) < 0) { /* TODO */ err = -EIO; rdev_unlock_llsec_table(rdev, wpan_dev); goto out_err; } } } cb->args[2] = 1; out: rdev_unlock_llsec_table(rdev, wpan_dev); err = skb->len; out_err: nl802154_finish_wpan_dev_dump(rdev); return err; } static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = { [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 }, [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 }, [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED }, }; static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; struct ieee802154_llsec_device_key key; __le64 extended_addr; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) return -EOPNOTSUPP; if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] || nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack) < 0) return -EINVAL; if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] || !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) return -EINVAL; /* TODO change key.id ? */ if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], &key.key_id) < 0) return -ENOBUFS; /* TODO be32 */ key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]); /* TODO change naming hwaddr -> extended_addr * check unique identifier short+pan OR extended_addr */ extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key); } static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; struct ieee802154_llsec_device_key key; __le64 extended_addr; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) return -EOPNOTSUPP; if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] || nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack)) return -EINVAL; if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) return -EINVAL; /* TODO change key.id ? */ if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], &key.key_id) < 0) return -ENOBUFS; /* TODO change naming hwaddr -> extended_addr * check unique identifier short+pan OR extended_addr */ extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key); } static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid, u32 seq, int flags, struct cfg802154_registered_device *rdev, struct net_device *dev, const struct ieee802154_llsec_seclevel *sl) { void *hdr; struct nlattr *nl_seclevel; hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); if (!hdr) return -ENOBUFS; if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) goto nla_put_failure; nl_seclevel = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_LEVEL); if (!nl_seclevel) goto nla_put_failure; if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) || nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) || nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE, sl->device_override)) goto nla_put_failure; if (sl->frame_type == NL802154_FRAME_CMD) { if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME, sl->cmd_frame_id)) goto nla_put_failure; } nla_nest_end(msg, nl_seclevel); genlmsg_end(msg, hdr); return 0; nla_put_failure: genlmsg_cancel(msg, hdr); return -EMSGSIZE; } static int nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb) { struct cfg802154_registered_device *rdev = NULL; struct ieee802154_llsec_seclevel *sl; struct ieee802154_llsec_table *table; struct wpan_dev *wpan_dev; int err; err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); if (err) return err; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) { err = skb->len; goto out_err; } if (!wpan_dev->netdev) { err = -EINVAL; goto out_err; } rdev_lock_llsec_table(rdev, wpan_dev); rdev_get_llsec_table(rdev, wpan_dev, &table); /* TODO make it like station dump */ if (cb->args[2]) goto out; list_for_each_entry(sl, &table->security_levels, list) { if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, NLM_F_MULTI, rdev, wpan_dev->netdev, sl) < 0) { /* TODO */ err = -EIO; rdev_unlock_llsec_table(rdev, wpan_dev); goto out_err; } } cb->args[2] = 1; out: rdev_unlock_llsec_table(rdev, wpan_dev); err = skb->len; out_err: nl802154_finish_wpan_dev_dump(rdev); return err; } static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = { [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 }, [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 }, [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 }, [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 }, }; static int llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl) { struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1]; if (!nla || nla_parse_nested_deprecated(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, nl802154_seclevel_policy, NULL)) return -EINVAL; memset(sl, 0, sizeof(*sl)); if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] || !attrs[NL802154_SECLEVEL_ATTR_FRAME] || !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]) return -EINVAL; sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]); sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]); sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]); if (sl->frame_type > NL802154_FRAME_MAX || (sl->device_override != 0 && sl->device_override != 1)) return -EINVAL; if (sl->frame_type == NL802154_FRAME_CMD) { if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]) return -EINVAL; sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]); if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX) return -EINVAL; } return 0; } static int nl802154_add_llsec_seclevel(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct ieee802154_llsec_seclevel sl; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) return -EOPNOTSUPP; if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], &sl) < 0) return -EINVAL; return rdev_add_seclevel(rdev, wpan_dev, &sl); } static int nl802154_del_llsec_seclevel(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct wpan_dev *wpan_dev = dev->ieee802154_ptr; struct ieee802154_llsec_seclevel sl; if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) return -EOPNOTSUPP; if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], &sl) < 0) return -EINVAL; return rdev_del_seclevel(rdev, wpan_dev, &sl); } #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ #define NL802154_FLAG_NEED_WPAN_PHY 0x01 #define NL802154_FLAG_NEED_NETDEV 0x02 #define NL802154_FLAG_NEED_RTNL 0x04 #define NL802154_FLAG_CHECK_NETDEV_UP 0x08 #define NL802154_FLAG_NEED_WPAN_DEV 0x10 static int nl802154_pre_doit(const struct genl_split_ops *ops, struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev; struct wpan_dev *wpan_dev; struct net_device *dev; bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL; if (rtnl) rtnl_lock(); if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) { rdev = cfg802154_get_dev_from_info(genl_info_net(info), info); if (IS_ERR(rdev)) { if (rtnl) rtnl_unlock(); return PTR_ERR(rdev); } info->user_ptr[0] = rdev; } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV || ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { ASSERT_RTNL(); wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info), info->attrs); if (IS_ERR(wpan_dev)) { if (rtnl) rtnl_unlock(); return PTR_ERR(wpan_dev); } dev = wpan_dev->netdev; rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy); if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) { if (!dev) { if (rtnl) rtnl_unlock(); return -EINVAL; } info->user_ptr[1] = dev; } else { info->user_ptr[1] = wpan_dev; } if (dev) { if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP && !netif_running(dev)) { if (rtnl) rtnl_unlock(); return -ENETDOWN; } dev_hold(dev); } info->user_ptr[0] = rdev; } return 0; } static void nl802154_post_doit(const struct genl_split_ops *ops, struct sk_buff *skb, struct genl_info *info) { if (info->user_ptr[1]) { if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { struct wpan_dev *wpan_dev = info->user_ptr[1]; dev_put(wpan_dev->netdev); } else { dev_put(info->user_ptr[1]); } } if (ops->internal_flags & NL802154_FLAG_NEED_RTNL) rtnl_unlock(); } static const struct genl_ops nl802154_ops[] = { { .cmd = NL802154_CMD_GET_WPAN_PHY, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP_STRICT, .doit = nl802154_get_wpan_phy, .dumpit = nl802154_dump_wpan_phy, .done = nl802154_dump_wpan_phy_done, /* can be retrieved by unprivileged users */ .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_GET_INTERFACE, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_get_interface, .dumpit = nl802154_dump_interface, /* can be retrieved by unprivileged users */ .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_NEW_INTERFACE, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_new_interface, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_DEL_INTERFACE, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_del_interface, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SET_CHANNEL, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_set_channel, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SET_CCA_MODE, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_set_cca_mode, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SET_CCA_ED_LEVEL, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_set_cca_ed_level, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SET_TX_POWER, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_set_tx_power, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_wpan_phy_netns, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SET_PAN_ID, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_set_pan_id, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SET_SHORT_ADDR, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_set_short_addr, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_set_backoff_exponent, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_set_max_csma_backoffs, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_set_max_frame_retries, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SET_LBT_MODE, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_set_lbt_mode, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_set_ackreq_default, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_TRIGGER_SCAN, .doit = nl802154_trigger_scan, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_CHECK_NETDEV_UP | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_ABORT_SCAN, .doit = nl802154_abort_scan, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_CHECK_NETDEV_UP | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SEND_BEACONS, .doit = nl802154_send_beacons, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_CHECK_NETDEV_UP | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_STOP_BEACONS, .doit = nl802154_stop_beacons, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_CHECK_NETDEV_UP | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_ASSOCIATE, .doit = nl802154_associate, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_CHECK_NETDEV_UP | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_DISASSOCIATE, .doit = nl802154_disassociate, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_CHECK_NETDEV_UP | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_SET_MAX_ASSOCIATIONS, .doit = nl802154_set_max_associations, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_LIST_ASSOCIATIONS, .dumpit = nl802154_list_associations, /* can be retrieved by unprivileged users */ }, #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL { .cmd = NL802154_CMD_SET_SEC_PARAMS, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_set_llsec_params, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_GET_SEC_KEY, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP_STRICT, /* TODO .doit by matching key id? */ .dumpit = nl802154_dump_llsec_key, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_NEW_SEC_KEY, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_add_llsec_key, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_DEL_SEC_KEY, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_del_llsec_key, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, /* TODO unique identifier must short+pan OR extended_addr */ { .cmd = NL802154_CMD_GET_SEC_DEV, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP_STRICT, /* TODO .doit by matching extended_addr? */ .dumpit = nl802154_dump_llsec_dev, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_NEW_SEC_DEV, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_add_llsec_dev, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_DEL_SEC_DEV, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_del_llsec_dev, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, /* TODO remove complete devkey, put it as nested? */ { .cmd = NL802154_CMD_GET_SEC_DEVKEY, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP_STRICT, /* TODO doit by matching ??? */ .dumpit = nl802154_dump_llsec_devkey, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_NEW_SEC_DEVKEY, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_add_llsec_devkey, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_DEL_SEC_DEVKEY, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_del_llsec_devkey, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_GET_SEC_LEVEL, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP_STRICT, /* TODO .doit by matching frame_type? */ .dumpit = nl802154_dump_llsec_seclevel, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_NEW_SEC_LEVEL, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, .doit = nl802154_add_llsec_seclevel, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, { .cmd = NL802154_CMD_DEL_SEC_LEVEL, .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, /* TODO match frame_type only? */ .doit = nl802154_del_llsec_seclevel, .flags = GENL_ADMIN_PERM, .internal_flags = NL802154_FLAG_NEED_NETDEV | NL802154_FLAG_NEED_RTNL, }, #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ }; static struct genl_family nl802154_fam __ro_after_init = { .name = NL802154_GENL_NAME, /* have users key off the name instead */ .hdrsize = 0, /* no private header */ .version = 1, /* no particular meaning now */ .maxattr = NL802154_ATTR_MAX, .policy = nl802154_policy, .netnsok = true, .pre_doit = nl802154_pre_doit, .post_doit = nl802154_post_doit, .module = THIS_MODULE, .ops = nl802154_ops, .n_ops = ARRAY_SIZE(nl802154_ops), .resv_start_op = NL802154_CMD_DEL_SEC_LEVEL + 1, .mcgrps = nl802154_mcgrps, .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps), }; /* initialisation/exit functions */ int __init nl802154_init(void) { return genl_register_family(&nl802154_fam); } void nl802154_exit(void) { genl_unregister_family(&nl802154_fam); }
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