diff options
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/reg.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 9f4f8439e16a..1f6abba60274 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -2199,6 +2199,39 @@ static int reg_set_rd_core(const struct ieee80211_regdomain *rd) return 0; } +static int reg_set_rd_user(const struct ieee80211_regdomain *rd, + struct regulatory_request *user_request) +{ + const struct ieee80211_regdomain *intersected_rd = NULL; + + if (is_world_regdom(rd->alpha2)) + return -EINVAL; + + if (!regdom_changes(rd->alpha2)) + return -EALREADY; + + if (!is_valid_rd(rd)) { + pr_err("Invalid regulatory domain detected:\n"); + print_regdomain_info(rd); + return -EINVAL; + } + + if (!user_request->intersect) { + reset_regdomains(false, rd); + return 0; + } + + intersected_rd = regdom_intersect(rd, get_cfg80211_regdom()); + if (!intersected_rd) + return -EINVAL; + + kfree(rd); + rd = NULL; + reset_regdomains(false, intersected_rd); + + return 0; +} + /* Takes ownership of rd only if it doesn't fail */ static int __set_regdom(const struct ieee80211_regdomain *rd, struct regulatory_request *lr) @@ -2329,6 +2362,8 @@ int set_regdom(const struct ieee80211_regdomain *rd) r = reg_set_rd_core(rd); break; case NL80211_REGDOM_SET_BY_USER: + r = reg_set_rd_user(rd, lr); + break; case NL80211_REGDOM_SET_BY_DRIVER: case NL80211_REGDOM_SET_BY_COUNTRY_IE: r = __set_regdom(rd, lr); |