[PATCH RFC liburing 1/2] Add IORING_OP_CLONE/EXEC support

[Gabriel Krisman Bertazi <krisman@xxxxxxx>]

Signed-off-by: Gabriel Krisman Bertazi <krisman@xxxxxxx>
---
 src/include/liburing.h          | 25 +++++++++++++++++++++++++
 src/include/liburing/io_uring.h |  3 +++
 2 files changed, 28 insertions(+)

diff --git a/src/include/liburing.h b/src/include/liburing.h
index 627fc47..6d344b1 100644
--- a/src/include/liburing.h
+++ b/src/include/liburing.h
@@ -1229,6 +1229,31 @@ IOURINGINLINE void io_uring_prep_socket_direct_alloc(struct io_uring_sqe *sqe,
 	__io_uring_set_target_fixed_file(sqe, IORING_FILE_INDEX_ALLOC - 1);
 }
 
+static inline void io_uring_prep_clone(struct io_uring_sqe *sqe)
+{
+	io_uring_prep_rw(IORING_OP_CLONE, sqe, 0, NULL, 0, 0);
+}
+
+static inline void io_uring_prep_execveat(struct io_uring_sqe *sqe, int dfd,
+					  const char *filename, char *const *argv,
+					  char *const *envp, int flags)
+{
+	io_uring_prep_rw(IORING_OP_EXECVEAT, sqe, dfd, filename, 0, 0);
+	sqe->addr2 = (unsigned long)(void *)argv;
+	sqe->addr3 = (unsigned long)(void *)envp;
+	sqe->execve_flags = flags;
+}
+
+static inline void io_uring_prep_exec(struct io_uring_sqe *sqe,
+				      const char *filename, char *const *argv,
+                                      char *const *envp)
+{
+       io_uring_prep_rw(IORING_OP_EXECVEAT, sqe, 0, filename, 0, 0);
+       sqe->addr2 = (unsigned long)(void *)argv;
+       sqe->addr3 = (unsigned long)(void *)envp;
+}
+
+
 /*
  * Prepare commands for sockets
  */
diff --git a/src/include/liburing/io_uring.h b/src/include/liburing/io_uring.h
index 7659198..a198969 100644
--- a/src/include/liburing/io_uring.h
+++ b/src/include/liburing/io_uring.h
@@ -73,6 +73,7 @@ struct io_uring_sqe {
 		__u32		futex_flags;
 		__u32		install_fd_flags;
 		__u32		nop_flags;
+		__u32		execve_flags;
 	};
 	__u64	user_data;	/* data to be passed back at completion time */
 	/* pack this to avoid bogus arm OABI complaints */
@@ -262,6 +263,8 @@ enum io_uring_op {
 	IORING_OP_FTRUNCATE,
 	IORING_OP_BIND,
 	IORING_OP_LISTEN,
+	IORING_OP_CLONE,
+	IORING_OP_EXECVEAT,
 
 	/* this goes last, obviously */
 	IORING_OP_LAST,
-- 
2.47.0