1 files changed, 81 insertions, 0 deletions

diff --git a/include/log/logger.h b/include/log/logger.h
new file mode 100644
index 000000000..04f3fb05b
--- /dev/null
+++ b/include/log/logger.h
@@ -0,0 +1,81 @@
+/* utils/logger.h
+** 
+** Copyright 2007, The Android Open Source Project
+**
+** This file is dual licensed.  It may be redistributed and/or modified
+** under the terms of the Apache 2.0 License OR version 2 of the GNU
+** General Public License.
+*/
+
+#ifndef _UTILS_LOGGER_H
+#define _UTILS_LOGGER_H
+
+#include <stdint.h>
+
+/*
+ * The userspace structure for version 1 of the logger_entry ABI.
+ * This structure is returned to userspace by the kernel logger
+ * driver unless an upgrade to a newer ABI version is requested.
+ */
+struct logger_entry {
+    uint16_t    len;    /* length of the payload */
+    uint16_t    __pad;  /* no matter what, we get 2 bytes of padding */
+    int32_t     pid;    /* generating process's pid */
+    int32_t     tid;    /* generating process's tid */
+    int32_t     sec;    /* seconds since Epoch */
+    int32_t     nsec;   /* nanoseconds */
+    char        msg[0]; /* the entry's payload */
+};
+
+/*
+ * The userspace structure for version 2 of the logger_entry ABI.
+ * This structure is returned to userspace if ioctl(LOGGER_SET_VERSION)
+ * is called with version==2
+ */
+struct logger_entry_v2 {
+    uint16_t    len;       /* length of the payload */
+    uint16_t    hdr_size;  /* sizeof(struct logger_entry_v2) */
+    int32_t     pid;       /* generating process's pid */
+    int32_t     tid;       /* generating process's tid */
+    int32_t     sec;       /* seconds since Epoch */
+    int32_t     nsec;      /* nanoseconds */
+    uint32_t    euid;      /* effective UID of logger */
+    char        msg[0];    /* the entry's payload */
+};
+
+#define LOGGER_LOG_MAIN         "log/main"
+#define LOGGER_LOG_RADIO        "log/radio"
+#define LOGGER_LOG_EVENTS       "log/events"
+#define LOGGER_LOG_SYSTEM       "log/system"
+
+/*
+ * The maximum size of the log entry payload that can be
+ * written to the kernel logger driver. An attempt to write
+ * more than this amount to /dev/log/* will result in a
+ * truncated log entry.
+ */
+#define LOGGER_ENTRY_MAX_PAYLOAD        4076
+
+/*
+ * The maximum size of a log entry which can be read from the
+ * kernel logger driver. An attempt to read less than this amount
+ * may result in read() returning EINVAL.
+ */
+#define LOGGER_ENTRY_MAX_LEN            (5*1024)
+
+#ifdef HAVE_IOCTL
+
+#include <sys/ioctl.h>
+
+#define __LOGGERIO      0xAE
+
+#define LOGGER_GET_LOG_BUF_SIZE         _IO(__LOGGERIO, 1) /* size of log */
+#define LOGGER_GET_LOG_LEN              _IO(__LOGGERIO, 2) /* used log len */
+#define LOGGER_GET_NEXT_ENTRY_LEN       _IO(__LOGGERIO, 3) /* next entry len */
+#define LOGGER_FLUSH_LOG                _IO(__LOGGERIO, 4) /* flush log */
+#define LOGGER_GET_VERSION              _IO(__LOGGERIO, 5) /* abi version */
+#define LOGGER_SET_VERSION              _IO(__LOGGERIO, 6) /* abi version */
+
+#endif // HAVE_IOCTL
+
+#endif /* _UTILS_LOGGER_H */