From 5c8a9905ce3b04a4317d356d5481552fd17b63cb Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Tue, 2 Mar 2021 23:37:41 +0000
Subject: [linux] Add a generic function for reading files from sysfs

Signed-off-by: Michael Brown <mcb30@ipxe.org>
---
 src/interface/linux/linux_api.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/interface/linux/linux_api.c')

diff --git a/src/interface/linux/linux_api.c b/src/interface/linux/linux_api.c
index fa694330e..6fa2b0e76 100644
--- a/src/interface/linux/linux_api.c
+++ b/src/interface/linux/linux_api.c
@@ -32,6 +32,7 @@
 #include <sys/mman.h>
 #include <sys/socket.h>
 #include <sys/time.h>
+#include <sys/stat.h>
 #include <netinet/in.h>
 #include <ipxe/linux_api.h>
 #include <ipxe/slirp.h>
@@ -198,6 +199,20 @@ int __asmcall linux_ioctl ( int fd, unsigned long request, ... ) {
 	return ret;
 }
 
+/**
+ * Wrap statx()
+ *
+ */
+int __asmcall linux_statx ( int dirfd, const char *pathname, int flags,
+			    unsigned int mask, struct statx *statxbuf ) {
+	int ret;
+
+	ret = statx ( dirfd, pathname, flags, mask, statxbuf );
+	if ( ret == -1 )
+		linux_errno = errno;
+	return ret;
+}
+
 /**
  * Wrap poll()
  *
@@ -516,6 +531,7 @@ PROVIDE_IPXE_SYM ( linux_read );
 PROVIDE_IPXE_SYM ( linux_write );
 PROVIDE_IPXE_SYM ( linux_fcntl );
 PROVIDE_IPXE_SYM ( linux_ioctl );
+PROVIDE_IPXE_SYM ( linux_statx );
 PROVIDE_IPXE_SYM ( linux_poll );
 PROVIDE_IPXE_SYM ( linux_nanosleep );
 PROVIDE_IPXE_SYM ( linux_usleep );
-- 
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