diff options
| author | junchao yuan <junchao.yuan@amlogic.com> | 2023-04-11 10:31:33 +0800 |
|---|---|---|
| committer | Alessio Balsini <balsini@google.com> | 2023-05-05 13:58:21 +0100 |
| commit | 80ca6e69c367deb14593b53d63ca295c42113589 (patch) | |
| tree | b8a028ba0edfd4c6c2b4141a3a1b039a7d363e99 | |
| parent | e227ec84976de7482eea3ae09a2404cbe59bbe99 (diff) | |
| download | libfuse-80ca6e69c367deb14593b53d63ca295c42113589.tar.gz | |
libfuse: add setxattr functionandroid-u-beta-2-gpl
Add the upstream setxattr functionality to libfuse.
This is a rework of the upstream commit: 681a0c11, and doesn't add any
out-of-tree functionality.
PD#SWPL-114538
Test: ohm, m, CtsScopedStorageDeviceOnlyTest
Bug: 254164657
Change-Id: Iefaa6682729600f8804b454bb14f9d1611c6d7a7
Signed-off-by: junchao yuan <junchao.yuan@amlogic.com>
| -rw-r--r-- | include/fuse_common.h | 7 | ||||
| -rw-r--r-- | lib/fuse_lowlevel.c | 10 |
2 files changed, 16 insertions, 1 deletions
diff --git a/include/fuse_common.h b/include/fuse_common.h index d6fa3e2..efaf754 100644 --- a/include/fuse_common.h +++ b/include/fuse_common.h @@ -400,6 +400,13 @@ struct fuse_loop_config { #define FUSE_CAP_EXPLICIT_INVAL_DATA (1 << 25) /** + * Indicates that an extended 'struct fuse_setxattr' is used by the kernel + * side - extra_flags are passed, which are used (as of now by acl) processing. + * For example FUSE_SETXATTR_ACL_KILL_SGID might be set. + */ +#define FUSE_CAP_SETXATTR_EXT (1 << 27) + +/** * Indicates support for passthrough mode access for read/write operations. * * If this flag is set in the `capable` field of the `fuse_conn_info` diff --git a/lib/fuse_lowlevel.c b/lib/fuse_lowlevel.c index 964462f..51cd412 100644 --- a/lib/fuse_lowlevel.c +++ b/lib/fuse_lowlevel.c @@ -1677,10 +1677,14 @@ static void do_statfs(fuse_req_t req, fuse_ino_t nodeid, const void *inarg) static void do_setxattr(fuse_req_t req, fuse_ino_t nodeid, const void *inarg) { + struct fuse_session *se = req->se; + unsigned int xattr_ext = !!(se->conn.want & FUSE_CAP_SETXATTR_EXT); struct fuse_setxattr_in *arg = (struct fuse_setxattr_in *) inarg; - char *name = PARAM(arg); + char *name = xattr_ext ? PARAM(arg) : + (char *)arg + FUSE_COMPAT_SETXATTR_IN_SIZE; char *value = name + strlen(name) + 1; + /* XXX:The API should be extended to support extra_flags/setxattr_flags */ if (req->se->op.setxattr) req->se->op.setxattr(req, nodeid, name, value, arg->size, arg->flags); @@ -2089,6 +2093,8 @@ void do_init(fuse_req_t req, fuse_ino_t nodeid, const void *inarg) se->conn.capable |= FUSE_CAP_NO_OPENDIR_SUPPORT; if (arg->flags & FUSE_EXPLICIT_INVAL_DATA) se->conn.capable |= FUSE_CAP_EXPLICIT_INVAL_DATA; + if (arg->flags & FUSE_SETXATTR_EXT) + se->conn.capable |= FUSE_CAP_SETXATTR_EXT; if (!(arg->flags & FUSE_MAX_PAGES)) { size_t max_bufsize = FUSE_DEFAULT_MAX_PAGES_PER_REQ * getpagesize() @@ -2226,6 +2232,8 @@ void do_init(fuse_req_t req, fuse_ino_t nodeid, const void *inarg) outarg.flags |= FUSE_CACHE_SYMLINKS; if (se->conn.want & FUSE_CAP_EXPLICIT_INVAL_DATA) outarg.flags |= FUSE_EXPLICIT_INVAL_DATA; + if (se->conn.want & FUSE_CAP_SETXATTR_EXT) + outarg.flags |= FUSE_SETXATTR_EXT; outarg.max_readahead = se->conn.max_readahead; outarg.max_write = se->conn.max_write; if (se->conn.proto_minor >= 13) { |