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authorDoug Zongker <dougz@google.com>2014-07-10 16:31:46 +0200
committerDoug Zongker <dougz@google.com>2014-07-10 19:55:07 +0200
commit18a78e0a162c35756628610307f41179816d3333 (patch)
tree0fc0d66dacdb35be53da27a80e77865f68dc8325 /minadbd/fuse_sideload.c
parentdrop APPLY_CACHE and refactor APPLY_EXT (diff)
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Diffstat (limited to '')
-rw-r--r--fuse_sideload.c (renamed from minadbd/fuse_sideload.c)43
1 files changed, 19 insertions, 24 deletions
diff --git a/minadbd/fuse_sideload.c b/fuse_sideload.c
index def068e55..ab91defbf 100644
--- a/minadbd/fuse_sideload.c
+++ b/fuse_sideload.c
@@ -60,9 +60,8 @@
#include <sys/uio.h>
#include <unistd.h>
-#include "transport.h"
-#include "adb.h"
#include "mincrypt/sha256.h"
+#include "fuse_sideload.h"
#define PACKAGE_FILE_ID (FUSE_ROOT_ID+1)
#define EXIT_FLAG_ID (FUSE_ROOT_ID+2)
@@ -72,7 +71,9 @@
struct fuse_data {
int ffd; // file descriptor for the fuse socket
- int sfd; // file descriptor for the adb channel
+
+ struct provider_vtab* vtab;
+ void* cookie;
uint64_t file_size; // bytes
@@ -170,13 +171,13 @@ static int handle_lookup(void* data, struct fuse_data* fd,
out.entry_valid = 10;
out.attr_valid = 10;
- if (strncmp(ADB_SIDELOAD_HOST_FILENAME, data,
- sizeof(ADB_SIDELOAD_HOST_FILENAME)) == 0) {
+ if (strncmp(FUSE_SIDELOAD_HOST_FILENAME, data,
+ sizeof(FUSE_SIDELOAD_HOST_FILENAME)) == 0) {
out.nodeid = PACKAGE_FILE_ID;
out.generation = PACKAGE_FILE_ID;
fill_attr(&(out.attr), fd, PACKAGE_FILE_ID, fd->file_size, S_IFREG | 0444);
- } else if (strncmp(ADB_SIDELOAD_HOST_EXIT_FLAG, data,
- sizeof(ADB_SIDELOAD_HOST_EXIT_FLAG)) == 0) {
+ } else if (strncmp(FUSE_SIDELOAD_HOST_EXIT_FLAG, data,
+ sizeof(FUSE_SIDELOAD_HOST_EXIT_FLAG)) == 0) {
out.nodeid = EXIT_FLAG_ID;
out.generation = EXIT_FLAG_ID;
fill_attr(&(out.attr), fd, EXIT_FLAG_ID, 0, S_IFREG | 0);
@@ -231,17 +232,8 @@ static int fetch_block(struct fuse_data* fd, uint32_t block) {
memset(fd->block_data + fetch_size, 0, fd->block_size - fetch_size);
}
- char buf[10];
- snprintf(buf, sizeof(buf), "%08u", block);
- if (writex(fd->sfd, buf, 8) < 0) {
- fprintf(stderr, "failed to write to adb host: %s\n", strerror(errno));
- return -EIO;
- }
-
- if (readx(fd->sfd, fd->block_data, fetch_size) < 0) {
- fprintf(stderr, "failed to read from adb host: %s\n", strerror(errno));
- return -EIO;
- }
+ int result = fd->vtab->read_block(fd->cookie, block, fd->block_data, fetch_size);
+ if (result < 0) return result;
fd->curr_block = block;
@@ -346,13 +338,14 @@ static int handle_read(void* data, struct fuse_data* fd, const struct fuse_in_he
return NO_STATUS;
}
-int run_fuse(int sfd, uint64_t file_size, uint32_t block_size)
+int run_fuse_sideload(struct provider_vtab* vtab, void* cookie,
+ uint64_t file_size, uint32_t block_size)
{
int result;
// If something's already mounted on our mountpoint, try to remove
// it. (Mostly in case of a previous abnormal exit.)
- umount2(ADB_SIDELOAD_HOST_MOUNTPOINT, MNT_FORCE);
+ umount2(FUSE_SIDELOAD_HOST_MOUNTPOINT, MNT_FORCE);
if (block_size < 1024) {
fprintf(stderr, "block size (%u) is too small\n", block_size);
@@ -365,7 +358,8 @@ int run_fuse(int sfd, uint64_t file_size, uint32_t block_size)
struct fuse_data fd;
memset(&fd, 0, sizeof(fd));
- fd.sfd = sfd;
+ fd.vtab = vtab;
+ fd.cookie = cookie;
fd.file_size = file_size;
fd.block_size = block_size;
fd.file_blocks = (file_size == 0) ? 0 : (((file_size-1) / block_size) + 1);
@@ -414,7 +408,7 @@ int run_fuse(int sfd, uint64_t file_size, uint32_t block_size)
"allow_other,rootmode=040000"),
fd.ffd, fd.uid, fd.gid, block_size);
- result = mount("/dev/fuse", ADB_SIDELOAD_HOST_MOUNTPOINT,
+ result = mount("/dev/fuse", FUSE_SIDELOAD_HOST_MOUNTPOINT,
"fuse", MS_NOSUID | MS_NODEV | MS_RDONLY | MS_NOEXEC, opts);
if (result < 0) {
perror("mount");
@@ -493,8 +487,9 @@ int run_fuse(int sfd, uint64_t file_size, uint32_t block_size)
}
done:
- writex(sfd, "DONEDONE", 8);
- result = umount2(ADB_SIDELOAD_HOST_MOUNTPOINT, MNT_DETACH);
+ fd.vtab->close(fd.cookie);
+
+ result = umount2(FUSE_SIDELOAD_HOST_MOUNTPOINT, MNT_DETACH);
if (result < 0) {
printf("fuse_sideload umount failed: %s\n", strerror(errno));
}