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wireguard-apple
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Logging: Tag the entries in the merged log 

So we know which entry is from the app and which is from the network
extension.
This commit is contained in:
Roopesh Chander 2018-12-13 18:00:29 +05:30
parent 6ee3bd1ad2
commit b704f7a0db
4 changed files with 14 additions and 7 deletions
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10
WireGuard/Shared/Logging/Logger.swift
View File

@ -14,14 +14,18 @@ class Logger {
return (logPtr != nil)
}
static func writeLog(mergedWith otherLogFile: String, to targetFile: String) -> Bool {
static func writeLog(mergedWith otherLogFile: String, tag: String, otherTag: String, to targetFile: String) -> Bool {
let otherlogPtr = otherLogFile.withCString { otherLogFileCStr -> UnsafeMutablePointer<log>? in
return open_log(otherLogFileCStr)
}
if let thisLogPtr = Logger.logPtr, let otherlogPtr = otherlogPtr {
return targetFile.withCString { targetFileCStr -> Bool in
let returnValue = write_logs_to_file(targetFileCStr, thisLogPtr, otherlogPtr)
return (returnValue == 0)
return tag.withCString { tagCStr -> Bool in
return otherTag.withCString { otherTagCStr -> Bool in
let returnValue = write_logs_to_file(targetFileCStr, tagCStr, thisLogPtr, otherTagCStr, otherlogPtr)
return (returnValue == 0)
}
}
}
}
return false

7
WireGuard/Shared/Logging/ringlogger.c
View File

@ -49,7 +49,7 @@ static bool first_before_second(const struct log_line *line1, const struct log_l
return false;
}
int write_logs_to_file(const char *file_name, const struct log *log1, const struct log *log2)
int write_logs_to_file(const char *file_name, const char *tag1, const struct log *log1, const char *tag2, const struct log *log2)
{
uint32_t i1, i2, len1 = log1->header.len, len2 = log2->header.len;
char buf[MAX_LOG_LINE_LENGTH];
@ -68,19 +68,22 @@ int write_logs_to_file(const char *file_name, const struct log *log1, const stru
const struct log_line *line1 = &log1->lines[(log1->header.first + i1) % MAX_LINES];
const struct log_line *line2 = &log2->lines[(log2->header.first + i2) % MAX_LINES];
const struct log_line *line;
const char *tag;
if (i1 < len1 && (i2 >= len2 || first_before_second(line1, line2))) {
line = line1;
tag = (const char *) tag1;
++i1;
} else if (i2 < len2 && (i1 >= len1 || first_before_second(line2, line1))) {
line = line2;
tag = (const char *) tag2;
++i2;
} else {
break;
}
memcpy(buf, line->line, MAX_LOG_LINE_LENGTH);
buf[MAX_LOG_LINE_LENGTH - 1] = '\0';
if (fprintf(file, "%lu.%06d: %s\n", line->tv.tv_sec, line->tv.tv_usec, buf) < 0) {
if (fprintf(file, "%lu.%06d: [%s] %s\n", line->tv.tv_sec, line->tv.tv_usec, tag, buf) < 0) {
int ret = -errno;
fclose(file);
return ret;

2
WireGuard/Shared/Logging/ringlogger.h
View File

@ -24,7 +24,7 @@ struct log {
};
void write_msg_to_log(struct log *log, const char *msg);
int write_logs_to_file(const char *file_name, const struct log *log1, const struct log *log2);
int write_logs_to_file(const char *file_name, const char *tag1, const struct log *log1, const char *tag2, const struct log *log2);
struct log *open_log(const char *file_name);
#endif

2
WireGuard/WireGuard/UI/iOS/SettingsTableViewController.swift
View File

@ -118,7 +118,7 @@ class SettingsTableViewController: UITableViewController {
return
}
let isWritten = Logger.writeLog(mergedWith: networkExtensionLogFilePath, to: destinationURL.path)
let isWritten = Logger.writeLog(mergedWith: networkExtensionLogFilePath, tag: "APP", otherTag: "EXT", to: destinationURL.path)
guard isWritten else {
ErrorPresenter.showErrorAlert(title: "Log export failed", message: "Internal error merging logs", from: self)
return