jimzah/Telodendria
1
0
Fork 0
forked from Telodendria/Telodendria
Code Pull requests Activity

TelodendriaConfigParse() doesn't modify the LogConfig.

Browse source 
Also pledge() and unveil() as soon as possible, to avoid the log file
breaking out.
This commit is contained in:
Jordan Bancino 2022-08-10 21:13:05 -04:00
parent 9ae05e84f2
commit 4304a28302
3 changed files with 95 additions and 32 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

81
src/Telodendria.c
View file

@ -25,6 +25,7 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <grp.h>
#include <pwd.h>
@ -105,6 +106,17 @@ main(int argc, char **argv)
TelodendriaPrintHeader(lc);
#ifdef __OpenBSD__
Log(lc, LOG_DEBUG, "Attempting pledge() and unveil()...");
if (pledge("stdio rpath wpath cpath inet dns getpw id unveil", NULL) != 0)
{
Log(lc, LOG_ERROR, "Pledge failed: %s", strerror(errno));
exit = EXIT_FAILURE;
goto finish;
}
#endif
while ((opt = getopt(argc, argv, "c:Vh")) != -1)
{
switch (opt)
@ -147,6 +159,14 @@ main(int argc, char **argv)
}
else
{
#ifdef __OpenBSD__
if (unveil(configArg, "r") != 0)
{
Log(lc, LOG_ERROR, "Unable to unveil() configuration file '%s' for reading.", configArg);
exit = EXIT_FAILURE;
goto finish;
}
#endif
configFile = fopen(configArg, "r");
if (!configFile)
{
@ -181,6 +201,42 @@ main(int argc, char **argv)
ConfigFree(config);
#ifdef __OpenBSD__
if (unveil(tConfig->chroot, "rwc") != 0)
{
Log(lc, LOG_ERROR, "Unveil of data directory failed: %s", strerror(errno));
exit = EXIT_FAILURE;
goto finish;
}
unveil(NULL, NULL); /* Done with unveil(), so disable it */
#endif
LogConfigTimeStampFormatSet(lc, tConfig->logTimestamp);
/* Color is enabled by default in the logger. */
if (!(tConfig->flags & TELODENDRIA_LOG_COLOR))
{
LogConfigFlagClear(lc, LOG_FLAG_COLOR);
}
LogConfigLevelSet(lc, tConfig->logLevel);
if (tConfig->logOut)
{
FILE *logFile = fopen(tConfig->logOut, "w");
if (!logFile)
{
Log(lc, LOG_ERROR, "Unable to open log file '%s' for writing.", tConfig->logOut);
exit = EXIT_FAILURE;
goto finish;
}
Log(lc, LOG_DEBUG, "Redirecting future output to '%s'.", tConfig->logOut);
LogConfigOutputSet(lc, logFile);
}
Log(lc, LOG_DEBUG, "Configuration:");
LogConfigIndent(lc);
Log(lc, LOG_DEBUG, "Listen On: %s:%s", tConfig->listenHost, tConfig->listenPort);
@ -192,16 +248,20 @@ main(int argc, char **argv)
Log(lc, LOG_DEBUG, "Flags: %x", tConfig->flags);
LogConfigUnindent(lc);
Log(lc, LOG_TASK, "Evaluating permissions...");
Log(lc, LOG_TASK, "Setting permissions...");
if (chdir(tConfig->chroot) != 0)
{
Log(lc, LOG_ERROR, "Unable to change into directory: %s.", tConfig->chroot);
Log(lc, LOG_ERROR, "Unable to change into data directory: %s.", strerror(errno));
exit = EXIT_FAILURE;
goto finish;
}
else
{
Log(lc, LOG_DEBUG, "Changed working directory to: %s", tConfig->chroot);
}
Log(lc, LOG_DEBUG, "Running as uid/gid: %d/%d.", getuid(), getgid());
Log(lc, LOG_DEBUG, "Running as uid:gid: %d:%d.", getuid(), getgid());
userInfo = getpwnam(tConfig->uid);
groupInfo = getgrnam(tConfig->gid);
@ -212,17 +272,25 @@ main(int argc, char **argv)
exit = EXIT_FAILURE;
goto finish;
}
else
{
Log(lc, LOG_DEBUG, "Found user/group information using getpwnam() and getgrnam().");
}
if (getuid() == 0)
{
#ifndef __OpenBSD__
if (chroot(tConfig->chroot) == 0)
{
Log(lc, LOG_MESSAGE, "Changed the root directory to: %s.", tConfig->chroot);
Log(lc, LOG_DEBUG, "Changed the root directory to: %s.", tConfig->chroot);
}
else
{
Log(lc, LOG_WARNING, "Unable to chroot into directory: %s.", tConfig->chroot);
}
#else
Log(lc, LOG_DEBUG, "Not attempting chroot() after pledge() and unveil().");
#endif
if (setgid(groupInfo->gr_gid) != 0 || setuid(userInfo->pw_uid) != 0)
{
@ -230,12 +298,12 @@ main(int argc, char **argv)
}
else
{
Log(lc, LOG_MESSAGE, "Set uid/gid to %s:%s.", tConfig->uid, tConfig->gid);
Log(lc, LOG_DEBUG, "Set uid/gid to %s:%s.", tConfig->uid, tConfig->gid);
}
}
else
{
Log(lc, LOG_MESSAGE, "Not changing root directory, because we are not root.");
Log(lc, LOG_DEBUG, "Not changing root directory, because we are not root.");
if (getuid() != userInfo->pw_uid || getgid() != groupInfo->gr_gid)
{
@ -260,5 +328,6 @@ main(int argc, char **argv)
finish:
Log(lc, LOG_DEBUG, "Exiting with code '%d'.", exit);
TelodendriaConfigFree(tConfig);
LogConfigFree(lc);
return exit;
}

39
src/TelodendriaConfig.c
View file

@ -211,23 +211,23 @@ TelodendriaConfigParse(HashMap * config, LogConfig * lc)
cVal = ArrayGet(ConfigValuesGet(cDirective), 0);
if (strcmp(cVal, "message") == 0)
{
LogConfigLevelSet(lc, LOG_MESSAGE);
tConfig->logLevel = LOG_MESSAGE;
}
else if (strcmp(cVal, "debug") == 0)
{
LogConfigLevelSet(lc, LOG_DEBUG);
tConfig->logLevel = LOG_DEBUG;
}
else if (strcmp(cVal, "task") == 0)
{
LogConfigLevelSet(lc, LOG_TASK);
tConfig->logLevel = LOG_TASK;
}
else if (strcmp(cVal, "warning") == 0)
{
LogConfigLevelSet(lc, LOG_WARNING);
tConfig->logLevel = LOG_WARNING;
}
else if (strcmp(cVal, "error") == 0)
{
LogConfigLevelSet(lc, LOG_ERROR);
tConfig->logLevel = LOG_ERROR;
}
else
{
@ -250,11 +250,11 @@ TelodendriaConfigParse(HashMap * config, LogConfig * lc)
if (strcmp(cVal, "none") == 0)
{
LogConfigTimeStampFormatSet(lc, NULL);
tConfig->logTimestamp = NULL;
}
else if (strcmp(cVal, "default") != 0)
{
LogConfigTimeStampFormatSet(lc, UtilStringDuplicate(cVal));
tConfig->logTimestamp = UtilStringDuplicate(cVal);
}
}
@ -270,11 +270,11 @@ TelodendriaConfigParse(HashMap * config, LogConfig * lc)
cVal = ArrayGet(ConfigValuesGet(cDirective), 0);
if (strcmp(cVal, "false") == 0)
if (strcmp(cVal, "true") == 0)
{
LogConfigFlagClear(lc, LOG_FLAG_COLOR);
tConfig->flags |= TELODENDRIA_LOG_COLOR;
}
else if (strcmp(cVal, "true") != 0)
else if (strcmp(cVal, "false") != 0)
{
Log(lc, LOG_ERROR, "Expected boolean value for log.color, got '%s'.", cVal);
goto error;
@ -285,20 +285,13 @@ TelodendriaConfigParse(HashMap * config, LogConfig * lc)
/* Set the actual log output file last */
if (strcmp(ArrayGet(value, 0), "stdout") != 0)
{
FILE *out = fopen(ArrayGet(value, 0), "w");
if (!out)
{
Log(lc, LOG_ERROR, "Unable to open log file '%s' for writing.",
ArrayGet(value, 0));
goto error;
}
Log(lc, LOG_DEBUG, "Redirecting output to '%s'.", ArrayGet(value, 0));
LogConfigOutputSet(lc, out);
tConfig->logOut = UtilStringDuplicate(ArrayGet(value, 0));
}
else
{
tConfig->logOut = NULL;
}
tConfig->logConfig = lc;
return tConfig;
error:
TelodendriaConfigFree(tConfig);
@ -325,7 +318,5 @@ TelodendriaConfigFree(TelodendriaConfig * tConfig)
free(tConfig->gid);
free(tConfig->dataDir);
LogConfigFree(tConfig->logConfig);
free(tConfig);
}

7
src/include/TelodendriaConfig.h
View file

@ -37,7 +37,8 @@
typedef enum TelodendriaConfigFlag
{
TELODENDRIA_FEDERATION = (1 << 0),
TELODENDRIA_REGISTRATION = (1 << 1)
TELODENDRIA_REGISTRATION = (1 << 1),
TELODENDRIA_LOG_COLOR = (1 << 2)
} TelodendriaConfigFlag;
/*
@ -62,7 +63,9 @@ typedef struct TelodendriaConfig
unsigned int flags;
unsigned int threads;
LogConfig *logConfig;
char *logOut;
char *logTimestamp;
LogLevel logLevel;
} TelodendriaConfig;
/*