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[tor-commits] [tor/master] Remove support for old android "logcat" API
commit 5c9b4a00608b89892fc48a1a76e5d4b52a237b55
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date: Wed Sep 23 12:30:24 2020 -0400
Remove support for old android "logcat" API
This is apparently obsolete; syslog is modern instead. If users
have an android log configured, given them a syslog if we can.
Closes #32181.
---
changes/ticket32181 | 4 +++
configure.ac | 4 ---
doc/man/tor.1.txt | 7 +---
src/app/config/config.c | 16 +++++----
src/app/config/or_options_st.h | 1 -
src/lib/log/log.c | 81 +++---------------------------------------
src/lib/log/log.h | 4 ---
7 files changed, 19 insertions(+), 98 deletions(-)
diff --git a/changes/ticket32181 b/changes/ticket32181
new file mode 100644
index 0000000000..c0bf3d50e1
--- /dev/null
+++ b/changes/ticket32181
@@ -0,0 +1,4 @@
+ o Removed features:
+ - We no longer ship support for the Android logging API. Modern
+ versions of Android can use the syslog API instead.
+ Closes ticket 32181.
diff --git a/configure.ac b/configure.ac
index 41c23e964c..dea3a5307f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -328,10 +328,6 @@ AM_CONDITIONAL([USE_ANDROID], [test "x$enable_android" = "xyes"])
if test "x$enable_android" = "xyes"; then
AC_DEFINE([USE_ANDROID], [1], [Compile with Android specific features enabled])
- dnl Check if the Android log library is available.
- AC_CHECK_HEADERS([android/log.h])
- AC_SEARCH_LIBS(__android_log_write, [log])
-
fi
dnl ---
diff --git a/doc/man/tor.1.txt b/doc/man/tor.1.txt
index 4b37548b07..eb682cb4b6 100644
--- a/doc/man/tor.1.txt
+++ b/doc/man/tor.1.txt
@@ -276,11 +276,6 @@ forward slash (/) in the configuration file and on the command line.
AlternateBridgeAuthority replaces the default bridge authority,
but leaves the directory authorities alone.
-[[AndroidIdentityTag]] **AndroidIdentityTag** __tag__::
- When logging to Android's logging subsystem, adds a tag to the log identity
- such that log entries are marked with "Tor-__tag__". Can not be changed while
- tor is running. (Default: none)
-
[[AvoidDiskWrites]] **AvoidDiskWrites** **0**|**1**::
If non-zero, try to write to disk less frequently than we would otherwise.
This is useful when running on flash memory or other media that support
@@ -688,7 +683,7 @@ forward slash (/) in the configuration file and on the command line.
Signal-safe logs are always sent to stderr or stdout. They are also sent to
a limited number of log files that are configured to log messages at error
severity from the bug or general domains. They are never sent as syslogs,
- android logs, control port log events, or to any API-based log
+ control port log events, or to any API-based log
destinations.
[[Log2]] **Log** __minSeverity__[-__maxSeverity__] **file** __FILENAME__::
diff --git a/src/app/config/config.c b/src/app/config/config.c
index 5c8a3792ee..a26bebe8b1 100644
--- a/src/app/config/config.c
+++ b/src/app/config/config.c
@@ -548,7 +548,7 @@ static const config_var_t option_vars_[] = {
V(LogTimeGranularity, MSEC_INTERVAL, "1 second"),
V(TruncateLogFile, BOOL, "0"),
V_IMMUTABLE(SyslogIdentityTag, STRING, NULL),
- V_IMMUTABLE(AndroidIdentityTag,STRING, NULL),
+ OBSOLETE("AndroidIdentityTag"),
V(LongLivedPorts, CSV,
"21,22,706,1863,5050,5190,5222,5223,6523,6667,6697,8300"),
VAR("MapAddress", LINELIST, AddressMap, NULL),
@@ -4934,15 +4934,19 @@ options_init_logs(const or_options_t *old_options, const or_options_t *options,
goto cleanup;
}
+ /* We added this workaround in 0.4.5.x; we can remove it in 0.4.6 or
+ * later */
if (!strcasecmp(smartlist_get(elts, 0), "android")) {
-#ifdef HAVE_ANDROID_LOG_H
+#ifdef HAVE_SYSLOG_H
+ log_warn(LD_CONFIG, "The android logging API is no longer supported;"
+ " adding a syslog instead. The 'android' logging "
+ " type will no longer work in the future.");
if (!validate_only) {
- add_android_log(severity, options->AndroidIdentityTag);
+ add_syslog_log(severity, options->SyslogIdentityTag);
}
#else
- log_warn(LD_CONFIG, "Android logging is not supported"
- " on this system. Sorry.");
-#endif /* defined(HAVE_ANDROID_LOG_H) */
+ log_warn(LD_CONFIG, "The android logging API is no longer supported.");
+#endif
goto cleanup;
}
}
diff --git a/src/app/config/or_options_st.h b/src/app/config/or_options_st.h
index 3b84e5e1f2..6201b6df40 100644
--- a/src/app/config/or_options_st.h
+++ b/src/app/config/or_options_st.h
@@ -58,7 +58,6 @@ struct or_options_t {
int TruncateLogFile; /**< Boolean: Should we truncate the log file
before we start writing? */
char *SyslogIdentityTag; /**< Identity tag to add for syslog logging. */
- char *AndroidIdentityTag; /**< Identity tag to add for Android logging. */
char *DebugLogFile; /**< Where to send verbose log messages. */
char *DataDirectory_option; /**< Where to store long-term data, as
diff --git a/src/lib/log/log.c b/src/lib/log/log.c
index cd848fdd73..12e4dbaaa2 100644
--- a/src/lib/log/log.c
+++ b/src/lib/log/log.c
@@ -51,10 +51,6 @@
#include "lib/fdio/fdio.h"
#include "lib/cc/ctassert.h"
-#ifdef HAVE_ANDROID_LOG_H
-#include <android/log.h>
-#endif // HAVE_ANDROID_LOG_H.
-
/** @{ */
/** The string we stick at the end of a log message when it is too long,
* and its length. */
@@ -78,8 +74,6 @@ typedef struct logfile_t {
int needs_close; /**< Boolean: true if the stream gets closed on shutdown. */
int is_temporary; /**< Boolean: close after initializing logging subsystem.*/
int is_syslog; /**< Boolean: send messages to syslog. */
- int is_android; /**< Boolean: send messages to Android's log subsystem. */
- char *android_tag; /**< Identity Tag used in Android's log subsystem. */
log_callback callback; /**< If not NULL, send messages to this function. */
log_severity_list_t *severities; /**< Which severity of messages should we
* log for each log domain? */
@@ -126,33 +120,6 @@ should_log_function_name(log_domain_mask_t domain, int severity)
}
}
-#ifdef HAVE_ANDROID_LOG_H
-/** Helper function to convert Tor's log severity into the matching
- * Android log priority.
- */
-static int
-severity_to_android_log_priority(int severity)
-{
- switch (severity) {
- case LOG_DEBUG:
- return ANDROID_LOG_VERBOSE;
- case LOG_INFO:
- return ANDROID_LOG_DEBUG;
- case LOG_NOTICE:
- return ANDROID_LOG_INFO;
- case LOG_WARN:
- return ANDROID_LOG_WARN;
- case LOG_ERR:
- return ANDROID_LOG_ERROR;
- default:
- // LCOV_EXCL_START
- raw_assert(0);
- return 0;
- // LCOV_EXCL_STOP
- }
-}
-#endif /* defined(HAVE_ANDROID_LOG_H) */
-
/** A mutex to guard changes to logfiles and logging. */
static tor_mutex_t log_mutex;
/** True iff we have initialized log_mutex */
@@ -475,13 +442,13 @@ pending_log_message_free_(pending_log_message_t *msg)
}
/** Helper function: returns true iff the log file, given in <b>lf</b>, is
- * handled externally via the system log API, the Android logging API, or is an
+ * handled externally via the system log API, or is an
* external callback function. */
static inline int
logfile_is_external(const logfile_t *lf)
{
raw_assert(lf);
- return lf->is_syslog || lf->is_android || lf->callback;
+ return lf->is_syslog || lf->callback;
}
/** Return true iff <b>lf</b> would like to receive a message with the
@@ -537,11 +504,6 @@ logfile_deliver(logfile_t *lf, const char *buf, size_t msg_len,
syslog(severity, "%s", msg_after_prefix);
#endif /* defined(MAXLINE) */
#endif /* defined(HAVE_SYSLOG_H) */
- } else if (lf->is_android) {
-#ifdef HAVE_ANDROID_LOG_H
- int priority = severity_to_android_log_priority(severity);
- __android_log_write(priority, lf->android_tag, msg_after_prefix);
-#endif // HAVE_ANDROID_LOG_H.
} else if (lf->callback) {
if (domain & LD_NOCB) {
if (!*callbacks_deferred && pending_cb_messages) {
@@ -677,7 +639,7 @@ tor_log_update_sigsafe_err_fds(void)
n_fds = 1;
for (lf = logfiles; lf; lf = lf->next) {
- /* Don't try callback to the control port, syslogs, android logs, or any
+ /* Don't try callback to the control port, syslogs, or any
* other non-file descriptor log: We can't call arbitrary functions from a
* signal handler.
*/
@@ -775,7 +737,6 @@ log_free_(logfile_t *victim)
return;
tor_free(victim->severities);
tor_free(victim->filename);
- tor_free(victim->android_tag);
tor_free(victim);
}
@@ -1247,39 +1208,6 @@ add_syslog_log(const log_severity_list_t *severity,
}
#endif /* defined(HAVE_SYSLOG_H) */
-#ifdef HAVE_ANDROID_LOG_H
-/**
- * Add a log handler to send messages to the Android platform log facility.
- */
-int
-add_android_log(const log_severity_list_t *severity,
- const char *android_tag)
-{
- logfile_t *lf = NULL;
-
- lf = tor_malloc_zero(sizeof(logfile_t));
- lf->fd = -1;
- lf->severities = tor_memdup(severity, sizeof(log_severity_list_t));
- lf->filename = tor_strdup("<android>");
- lf->is_android = 1;
-
- if (android_tag == NULL)
- lf->android_tag = tor_strdup("Tor");
- else {
- char buf[256];
- tor_snprintf(buf, sizeof(buf), "Tor-%s", android_tag);
- lf->android_tag = tor_strdup(buf);
- }
-
- LOCK_LOGS();
- lf->next = logfiles;
- logfiles = lf;
- log_global_min_severity_ = get_min_log_level();
- UNLOCK_LOGS();
- return 0;
-}
-#endif /* defined(HAVE_ANDROID_LOG_H) */
-
/** If <b>level</b> is a valid log severity, return the corresponding
* numeric value. Otherwise, return -1. */
int
@@ -1457,8 +1385,7 @@ parse_log_severity_config(const char **cfg_ptr,
if (!strcasecmpstart(cfg, "file") ||
!strcasecmpstart(cfg, "stderr") ||
!strcasecmpstart(cfg, "stdout") ||
- !strcasecmpstart(cfg, "syslog") ||
- !strcasecmpstart(cfg, "android")) {
+ !strcasecmpstart(cfg, "syslog")) {
goto done;
}
if (got_an_unqualified_range > 1)
diff --git a/src/lib/log/log.h b/src/lib/log/log.h
index aafbf9be2f..fb8a5a28a6 100644
--- a/src/lib/log/log.h
+++ b/src/lib/log/log.h
@@ -175,10 +175,6 @@ MOCK_DECL(int, add_file_log,(const log_severity_list_t *severity,
int add_syslog_log(const log_severity_list_t *severity,
const char* syslog_identity_tag);
#endif // HAVE_SYSLOG_H.
-#ifdef HAVE_ANDROID_LOG_H
-int add_android_log(const log_severity_list_t *severity,
- const char *android_identity_tag);
-#endif // HAVE_ANDROID_LOG_H.
int add_callback_log(const log_severity_list_t *severity, log_callback cb);
typedef void (*pending_callback_callback)(void);
void logs_set_pending_callback_callback(pending_callback_callback cb);
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