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

Message ID 20241209234421.4133054-2-krisman@suse.de (mailing list archive)
State New
Headers show
Series IORING_OP_CLONE/EXEC support and tests | expand

Commit Message

Gabriel Krisman Bertazi Dec. 9, 2024, 11:44 p.m. UTC
Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>
---
 src/include/liburing.h          | 25 +++++++++++++++++++++++++
 src/include/liburing/io_uring.h |  3 +++
 2 files changed, 28 insertions(+)

Comments

Josh Triplett Dec. 10, 2024, 9:06 p.m. UTC | #1
On Mon, Dec 09, 2024 at 06:44:20PM -0500, Gabriel Krisman Bertazi wrote:
> Signed-off-by: Gabriel Krisman Bertazi <krisman@suse.de>

One issue noted below; with that fixed:
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

> --- 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);

Shouldn't this helper use AT_FDCWD, rather than 0?
diff mbox series

Patch

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,