diff options
Diffstat (limited to 'kernel/audit.c')
| -rw-r--r-- | kernel/audit.c | 132 |
1 files changed, 102 insertions, 30 deletions
diff --git a/kernel/audit.c b/kernel/audit.c index 7ec9ccae1299..df57b493e1cb 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -230,49 +230,103 @@ void audit_log_lost(const char *message) } } -static int audit_set_rate_limit(int limit, uid_t loginuid) +static int audit_set_rate_limit(int limit, uid_t loginuid, u32 sid) { - int old = audit_rate_limit; - audit_rate_limit = limit; - audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, + int old = audit_rate_limit; + + if (sid) { + char *ctx = NULL; + u32 len; + int rc; + if ((rc = selinux_ctxid_to_string(sid, &ctx, &len))) + return rc; + else + audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, + "audit_rate_limit=%d old=%d by auid=%u subj=%s", + limit, old, loginuid, ctx); + kfree(ctx); + } else + audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, "audit_rate_limit=%d old=%d by auid=%u", - audit_rate_limit, old, loginuid); + limit, old, loginuid); + audit_rate_limit = limit; return old; } -static int audit_set_backlog_limit(int limit, uid_t loginuid) +static int audit_set_backlog_limit(int limit, uid_t loginuid, u32 sid) { - int old = audit_backlog_limit; - audit_backlog_limit = limit; - audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, + int old = audit_backlog_limit; + + if (sid) { + char *ctx = NULL; + u32 len; + int rc; + if ((rc = selinux_ctxid_to_string(sid, &ctx, &len))) + return rc; + else + audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, + "audit_backlog_limit=%d old=%d by auid=%u subj=%s", + limit, old, loginuid, ctx); + kfree(ctx); + } else + audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, "audit_backlog_limit=%d old=%d by auid=%u", - audit_backlog_limit, old, loginuid); + limit, old, loginuid); + audit_backlog_limit = limit; return old; } -static int audit_set_enabled(int state, uid_t loginuid) +static int audit_set_enabled(int state, uid_t loginuid, u32 sid) { - int old = audit_enabled; + int old = audit_enabled; + if (state != 0 && state != 1) return -EINVAL; - audit_enabled = state; - audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, + + if (sid) { + char *ctx = NULL; + u32 len; + int rc; + if ((rc = selinux_ctxid_to_string(sid, &ctx, &len))) + return rc; + else + audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, + "audit_enabled=%d old=%d by auid=%u subj=%s", + state, old, loginuid, ctx); + kfree(ctx); + } else + audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, "audit_enabled=%d old=%d by auid=%u", - audit_enabled, old, loginuid); + state, old, loginuid); + audit_enabled = state; return old; } -static int audit_set_failure(int state, uid_t loginuid) +static int audit_set_failure(int state, uid_t loginuid, u32 sid) { - int old = audit_failure; + int old = audit_failure; + if (state != AUDIT_FAIL_SILENT && state != AUDIT_FAIL_PRINTK && state != AUDIT_FAIL_PANIC) return -EINVAL; - audit_failure = state; - audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, + + if (sid) { + char *ctx = NULL; + u32 len; + int rc; + if ((rc = selinux_ctxid_to_string(sid, &ctx, &len))) + return rc; + else + audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, + "audit_failure=%d old=%d by auid=%u subj=%s", + state, old, loginuid, ctx); + kfree(ctx); + } else + audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, "audit_failure=%d old=%d by auid=%u", - audit_failure, old, loginuid); + state, old, loginuid); + audit_failure = state; return old; } @@ -437,25 +491,43 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh) return -EINVAL; status_get = (struct audit_status *)data; if (status_get->mask & AUDIT_STATUS_ENABLED) { - err = audit_set_enabled(status_get->enabled, loginuid); + err = audit_set_enabled(status_get->enabled, + loginuid, sid); if (err < 0) return err; } if (status_get->mask & AUDIT_STATUS_FAILURE) { - err = audit_set_failure(status_get->failure, loginuid); + err = audit_set_failure(status_get->failure, + loginuid, sid); if (err < 0) return err; } if (status_get->mask & AUDIT_STATUS_PID) { int old = audit_pid; + if (sid) { + char *ctx = NULL; + u32 len; + int rc; + if ((rc = selinux_ctxid_to_string( + sid, &ctx, &len))) + return rc; + else + audit_log(NULL, GFP_KERNEL, + AUDIT_CONFIG_CHANGE, + "audit_pid=%d old=%d by auid=%u subj=%s", + status_get->pid, old, + loginuid, ctx); + kfree(ctx); + } else + audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, + "audit_pid=%d old=%d by auid=%u", + status_get->pid, old, loginuid); audit_pid = status_get->pid; - audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, - "audit_pid=%d old=%d by auid=%u", - audit_pid, old, loginuid); } if (status_get->mask & AUDIT_STATUS_RATE_LIMIT) - audit_set_rate_limit(status_get->rate_limit, loginuid); + audit_set_rate_limit(status_get->rate_limit, + loginuid, sid); if (status_get->mask & AUDIT_STATUS_BACKLOG_LIMIT) audit_set_backlog_limit(status_get->backlog_limit, - loginuid); + loginuid, sid); break; case AUDIT_USER: case AUDIT_FIRST_USER_MSG...AUDIT_LAST_USER_MSG: @@ -477,7 +549,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh) if (selinux_ctxid_to_string( sid, &ctx, &len)) { audit_log_format(ab, - " subj=%u", sid); + " ssid=%u", sid); /* Maybe call audit_panic? */ } else audit_log_format(ab, @@ -499,7 +571,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh) case AUDIT_LIST: err = audit_receive_filter(nlh->nlmsg_type, NETLINK_CB(skb).pid, uid, seq, data, nlmsg_len(nlh), - loginuid); + loginuid, sid); break; case AUDIT_ADD_RULE: case AUDIT_DEL_RULE: @@ -509,7 +581,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh) case AUDIT_LIST_RULES: err = audit_receive_filter(nlh->nlmsg_type, NETLINK_CB(skb).pid, uid, seq, data, nlmsg_len(nlh), - loginuid); + loginuid, sid); break; case AUDIT_SIGNAL_INFO: sig_data.uid = audit_sig_uid; |
