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Signed-off-by: Justin Pettit <[email protected]> Acked-by: Han Zhou <[email protected]> Acked-by: Ben Pfaff <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| /* | ||
| * Copyright (c) 2017 Nicira, Inc. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at: | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
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| #include <config.h> | ||
| #include "ovn/lib/acl-log.h" | ||
| #include <string.h> | ||
| #include "flow.h" | ||
| #include "openvswitch/json.h" | ||
| #include "openvswitch/ofpbuf.h" | ||
| #include "openvswitch/vlog.h" | ||
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| VLOG_DEFINE_THIS_MODULE(acl_log); | ||
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| const char * | ||
| log_verdict_to_string(uint8_t verdict) | ||
| { | ||
| if (verdict == LOG_VERDICT_ALLOW) { | ||
| return "allow"; | ||
| } else if (verdict == LOG_VERDICT_DROP) { | ||
| return "drop"; | ||
| } else if (verdict == LOG_VERDICT_REJECT) { | ||
| return "reject"; | ||
| } else { | ||
| return "<unknown>"; | ||
| } | ||
| } | ||
|
|
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| const char * | ||
| log_severity_to_string(uint8_t severity) | ||
| { | ||
| if (severity == LOG_SEVERITY_ALERT) { | ||
| return "alert"; | ||
| } else if (severity == LOG_SEVERITY_WARNING) { | ||
| return "warning"; | ||
| } else if (severity == LOG_SEVERITY_NOTICE) { | ||
| return "notice"; | ||
| } else if (severity == LOG_SEVERITY_INFO) { | ||
| return "info"; | ||
| } else if (severity == LOG_SEVERITY_DEBUG) { | ||
| return "debug"; | ||
| } else { | ||
| return "<unknown>"; | ||
| } | ||
| } | ||
|
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| uint8_t | ||
| log_severity_from_string(const char *name) | ||
| { | ||
| if (!strcmp(name, "alert")) { | ||
| return LOG_SEVERITY_ALERT; | ||
| } else if (!strcmp(name, "warning")) { | ||
| return LOG_SEVERITY_WARNING; | ||
| } else if (!strcmp(name, "notice")) { | ||
| return LOG_SEVERITY_NOTICE; | ||
| } else if (!strcmp(name, "info")) { | ||
| return LOG_SEVERITY_INFO; | ||
| } else if (!strcmp(name, "debug")) { | ||
| return LOG_SEVERITY_DEBUG; | ||
| } else { | ||
| return UINT8_MAX; | ||
| } | ||
| } | ||
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| void | ||
| handle_acl_log(const struct flow *headers, struct ofpbuf *userdata) | ||
| { | ||
| if (!VLOG_IS_INFO_ENABLED()) { | ||
| return; | ||
| } | ||
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| struct log_pin_header *lph = ofpbuf_try_pull(userdata, sizeof *lph); | ||
| if (!lph) { | ||
| VLOG_WARN("log data missing"); | ||
| return; | ||
| } | ||
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| size_t name_len = userdata->size; | ||
| char *name = name_len ? xmemdup0(userdata->data, name_len) : NULL; | ||
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| struct ds ds = DS_EMPTY_INITIALIZER; | ||
| ds_put_cstr(&ds, "name="); | ||
| json_string_escape(name_len ? name : "<unnamed>", &ds); | ||
| ds_put_format(&ds, ", verdict=%s, severity=%s: ", | ||
| log_verdict_to_string(lph->verdict), | ||
| log_severity_to_string(lph->severity)); | ||
| flow_format(&ds, headers, NULL); | ||
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| VLOG_INFO("%s", ds_cstr(&ds)); | ||
| ds_destroy(&ds); | ||
| free(name); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| /* | ||
| * Copyright (c) 2017 Nicira, Inc. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at: | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| #ifndef ACL_LOG_H | ||
| #define ACL_LOG_H 1 | ||
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| #include <stdint.h> | ||
| #include "openvswitch/types.h" | ||
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| struct ofpbuf; | ||
| struct flow; | ||
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| struct log_pin_header { | ||
| uint8_t verdict; /* One of LOG_VERDICT_*. */ | ||
| uint8_t severity; /* One of LOG_SEVERITY*. */ | ||
| /* Followed by an optional string containing the rule's name. */ | ||
| }; | ||
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| enum log_verdict { | ||
| LOG_VERDICT_ALLOW, | ||
| LOG_VERDICT_DROP, | ||
| LOG_VERDICT_REJECT, | ||
| LOG_VERDICT_UNKNOWN = UINT8_MAX | ||
| }; | ||
|
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| const char *log_verdict_to_string(uint8_t verdict); | ||
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| /* Severity levels. Based on RFC5424 levels. */ | ||
| #define LOG_SEVERITY_ALERT 1 | ||
| #define LOG_SEVERITY_WARNING 4 | ||
| #define LOG_SEVERITY_NOTICE 5 | ||
| #define LOG_SEVERITY_INFO 6 | ||
| #define LOG_SEVERITY_DEBUG 7 | ||
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| const char *log_severity_to_string(uint8_t severity); | ||
| uint8_t log_severity_from_string(const char *name); | ||
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| void handle_acl_log(const struct flow *headers, struct ofpbuf *userdata); | ||
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| #endif /* ovn/lib/acl-log.h */ |
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