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authorTreeHugger Robot <treehugger-gerrit@google.com>2021-05-13 16:29:40 +0000
committerAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>2021-05-13 16:29:40 +0000
commit7fdddf2190c5c3cc7c7d4ffd103199b4803fa028 (patch)
tree3e5075efec3f16265f9fe0bdf93d9bb0cdce7107
parent1b8b7b64682085dbfb224e4413c19ab8425dfc73 (diff)
parent48ea17ee4b4cc770738c7b667c2f545d375dc383 (diff)
downloadlibfuse-android12-mainline-networkstack-release.tar.gz
Original change: https://googleplex-android-review.googlesource.com/c/platform/external/libfuse/+/14529475 Change-Id: I4e83cbd647b1fb1484fbe543fab7f83e44b33735
-rw-r--r--include/fuse_kernel.h1
-rw-r--r--lib/fuse_lowlevel.c10
2 files changed, 10 insertions, 1 deletions
diff --git a/include/fuse_kernel.h b/include/fuse_kernel.h
index 55d8e2c..bd8794e 100644
--- a/include/fuse_kernel.h
+++ b/include/fuse_kernel.h
@@ -836,6 +836,7 @@ struct fuse_notify_retrieve_in {
#define FUSE_DEV_IOC_CLONE _IOR(229, 0, uint32_t)
#define FUSE_DEV_IOC_PASSTHROUGH_OPEN_V0 _IOW(229, 1, struct fuse_passthrough_out_v0)
#define FUSE_DEV_IOC_PASSTHROUGH_OPEN_V1 _IOW(229, 127, struct fuse_passthrough_out_v0)
+#define FUSE_DEV_IOC_PASSTHROUGH_OPEN_V2 _IOW(229, 126, uint32_t)
struct fuse_lseek_in {
uint64_t fh;
diff --git a/lib/fuse_lowlevel.c b/lib/fuse_lowlevel.c
index baa6d2b..a4a4df0 100644
--- a/lib/fuse_lowlevel.c
+++ b/lib/fuse_lowlevel.c
@@ -463,6 +463,7 @@ enum {
FUSE_PASSTHROUGH_API_UNAVAILABLE,
FUSE_PASSTHROUGH_API_V0,
FUSE_PASSTHROUGH_API_V1,
+ FUSE_PASSTHROUGH_API_V2,
FUSE_PASSTHROUGH_API_STABLE,
};
@@ -490,7 +491,14 @@ int fuse_passthrough_enable(fuse_req_t req, unsigned int fd) {
switch (passthrough_version) {
case FUSE_PASSTHROUGH_API_STABLE:
/* There is not a stable API yet */
- passthrough_version = FUSE_PASSTHROUGH_API_V1;
+ passthrough_version = FUSE_PASSTHROUGH_API_V2;
+ case FUSE_PASSTHROUGH_API_V2: {
+ ret = ioctl(req->se->fd, FUSE_DEV_IOC_PASSTHROUGH_OPEN_V2, &fd);
+ if (ret == -1 && errno == ENOTTY)
+ passthrough_version = FUSE_PASSTHROUGH_API_V1;
+ else
+ break;
+ }
case FUSE_PASSTHROUGH_API_V1: {
struct fuse_passthrough_out_v0 out = {};
out.fd = fd;