diff options
Diffstat (limited to 'include/os.h')
| -rw-r--r-- | include/os.h | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/include/os.h b/include/os.h index 5c797212c25..28eb6252849 100644 --- a/include/os.h +++ b/include/os.h @@ -27,16 +27,6 @@ struct sandbox_state; ssize_t os_read(int fd, void *buf, size_t count); /** - * Access to the OS read() system call with non-blocking access - * - * \param fd File descriptor as returned by os_open() - * \param buf Buffer to place data - * \param count Number of bytes to read - * \return number of bytes read, or -1 on error - */ -ssize_t os_read_no_block(int fd, void *buf, size_t count); - -/** * Access to the OS write() system call * * \param fd File descriptor as returned by os_open() @@ -75,6 +65,7 @@ int os_open(const char *pathname, int flags); #define OS_O_RDWR 2 #define OS_O_MASK 3 /* Mask for read/write flags */ #define OS_O_CREAT 0100 +#define OS_O_TRUNC 01000 /** * Access to the OS close() system call @@ -334,4 +325,29 @@ void os_localtime(struct rtc_time *rt); * os_abort() - Raise SIGABRT to exit sandbox (e.g. to debugger) */ void os_abort(void); + +/** + * os_mprotect_allow() - Remove write-protection on a region of memory + * + * The start and length will be page-aligned before use. + * + * @start: Region start + * @len: Region length in bytes + * @return 0 if OK, -1 on error from mprotect() + */ +int os_mprotect_allow(void *start, size_t len); + +/** + * os_write_file() - Write a file to the host filesystem + * + * This can be useful when debugging for writing data out of sandbox for + * inspection by external tools. + * + * @name: File path to write to + * @buf: Data to write + * @size: Size of data to write + * @return 0 if OK, -ve on error + */ +int os_write_file(const char *name, const void *buf, int size); + #endif |