diff options
Diffstat (limited to 'demo')
| -rw-r--r-- | demo/Makefile | 9 | ||||
| -rw-r--r-- | demo/fremovexattr.c | 11 | ||||
| -rw-r--r-- | demo/fsetxattr.c | 11 | ||||
| -rw-r--r-- | demo/open_by_handle_at.c | 22 | ||||
| -rw-r--r-- | demo/virtiofsd.hjson | 93 |
5 files changed, 146 insertions, 0 deletions
diff --git a/demo/Makefile b/demo/Makefile new file mode 100644 index 0000000..6b8558f --- /dev/null +++ b/demo/Makefile @@ -0,0 +1,9 @@ +SRCS=$(wildcard *.c) + +all: $(SRCS:%.c=%) + +clean: + $(RM) $(SRCS:%.c=%) + +%: %.c + $(CC) $(CFLAGS) -o $@ $<
\ No newline at end of file diff --git a/demo/fremovexattr.c b/demo/fremovexattr.c new file mode 100644 index 0000000..1483975 --- /dev/null +++ b/demo/fremovexattr.c @@ -0,0 +1,11 @@ +#include <sys/stat.h> +#include <sys/xattr.h> +#include <fcntl.h> +#include <string.h> + +int main(int argc, char **argv) +{ + int fd = open(argv[1], O_RDONLY); + + return fremovexattr(fd, argv[2]); +} diff --git a/demo/fsetxattr.c b/demo/fsetxattr.c new file mode 100644 index 0000000..6ee423a --- /dev/null +++ b/demo/fsetxattr.c @@ -0,0 +1,11 @@ +#include <sys/stat.h> +#include <sys/xattr.h> +#include <fcntl.h> +#include <string.h> + +int main(int argc, char **argv) +{ + int fd = open(argv[1], O_RDONLY); + + return fsetxattr(fd, argv[2], argv[3], strlen(argv[3]) + 1, 0); +} diff --git a/demo/open_by_handle_at.c b/demo/open_by_handle_at.c new file mode 100644 index 0000000..1f48eca --- /dev/null +++ b/demo/open_by_handle_at.c @@ -0,0 +1,22 @@ +#define _GNU_SOURCE +#include <sys/stat.h> +#include <sys/xattr.h> +#include <fcntl.h> +#include <string.h> +#include <stdio.h> +#include <unistd.h> + +int main(int argc, char **argv) +{ + struct { + struct file_handle f; + unsigned char h[MAX_HANDLE_SZ]; + } handle = { .f.handle_bytes = MAX_HANDLE_SZ }; + int mount_fd, fd; + char buf[BUFSIZ]; + + name_to_handle_at(AT_FDCWD, argv[1], &handle.f, &mount_fd, 0); + fd = open_by_handle_at(mount_fd, &handle.f, 0); + read(fd, buf, BUFSIZ); + fprintf(stdout, "%s", buf); +} diff --git a/demo/virtiofsd.hjson b/demo/virtiofsd.hjson new file mode 100644 index 0000000..8dfde03 --- /dev/null +++ b/demo/virtiofsd.hjson @@ -0,0 +1,93 @@ +[ + { + "match": [ + { + "fsetxattr": { + "fd": { "set": "fd" }, + "name": "security.overrated", + "value": { "set": "label" }, + "size": { "set": "size" }, + "flags": { "set": "flags" } + } + } + ], + + "call": [ + { + "fsetxattr": { + "fd": { "get": "fd" }, + "name": "security.overrated", + "value": { "get": "label" }, + "size": { "get": "size" }, + "flags": { "get": "flags" } + }, + "ret": "rc" + } + ], + + "return": { "value": "rc", "error": "rc" } + }, + + { + "match": [ + { + "fremovexattr": { + "fd": { "set": "fd" }, + "name": "security.overrated" + } + } + ], + + "call": [ + { + "fremovexattr": { + "fd": { "get": "fd" }, + "name": "security.overrated" + }, + "ret": "rc" + } + ], + + "return": { "value": "rc", "error": "rc" } + }, + + { + "match": [ + { + "open_by_handle_at": { + "mount": "/", + "handle": { + "handle_bytes": { "set": "len" }, + "f_handle": { "set": "handle" } + }, + "flags": { "set": "flags" } + } + } + ], + + "call": [ + { + "open": { + "path": "/", + "flags": "rdonly", + "mode": "S_IRUSR" + }, + "ret": "fdmount" + }, + { + "open_by_handle_at": { + "mount": { "get": "fdmount" }, + "handle": { + "handle_type": "ino32_gen", + "handle_bytes": { "get": "len" }, + "f_handle": { "get": "handle" } + }, + "flags": { "get": "flags" } + }, + "ret": "new_fd" + } + ], + + "fd": { "src": { "get": "new_fd" }, "close_on_exec": false, "return": true } + } +] |