18a78e0a16
Split the adb-specific portions (fetching a block from the adb host and closing the connections) out from the rest of the FUSE filesystem code, so that we can reuse the fuse stuff for installing off sdcards as well. Change-Id: I0ba385fd35999c5f5cad27842bc82024a264dd14
147 lines
3.4 KiB
C
147 lines
3.4 KiB
C
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include "sysdeps.h"
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#include "fdevent.h"
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#include "fuse_adb_provider.h"
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#define TRACE_TAG TRACE_SERVICES
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#include "adb.h"
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typedef struct stinfo stinfo;
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struct stinfo {
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void (*func)(int fd, void *cookie);
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int fd;
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void *cookie;
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};
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void *service_bootstrap_func(void *x)
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{
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stinfo *sti = x;
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sti->func(sti->fd, sti->cookie);
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free(sti);
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return 0;
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}
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static void sideload_host_service(int sfd, void* cookie)
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{
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char* saveptr;
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const char* s = strtok_r(cookie, ":", &saveptr);
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uint64_t file_size = strtoull(s, NULL, 10);
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s = strtok_r(NULL, ":", &saveptr);
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uint32_t block_size = strtoul(s, NULL, 10);
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printf("sideload-host file size %llu block size %lu\n", file_size, block_size);
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int result = run_adb_fuse(sfd, file_size, block_size);
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printf("sideload_host finished\n");
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sleep(1);
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exit(result == 0 ? 0 : 1);
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}
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#if 0
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static void echo_service(int fd, void *cookie)
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{
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char buf[4096];
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int r;
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char *p;
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int c;
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for(;;) {
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r = read(fd, buf, 4096);
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if(r == 0) goto done;
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if(r < 0) {
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if(errno == EINTR) continue;
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else goto done;
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}
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c = r;
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p = buf;
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while(c > 0) {
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r = write(fd, p, c);
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if(r > 0) {
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c -= r;
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p += r;
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continue;
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}
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if((r < 0) && (errno == EINTR)) continue;
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goto done;
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}
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}
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done:
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close(fd);
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}
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#endif
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static int create_service_thread(void (*func)(int, void *), void *cookie)
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{
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stinfo *sti;
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adb_thread_t t;
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int s[2];
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if(adb_socketpair(s)) {
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printf("cannot create service socket pair\n");
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return -1;
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}
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sti = malloc(sizeof(stinfo));
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if(sti == 0) fatal("cannot allocate stinfo");
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sti->func = func;
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sti->cookie = cookie;
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sti->fd = s[1];
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if(adb_thread_create( &t, service_bootstrap_func, sti)){
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free(sti);
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adb_close(s[0]);
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adb_close(s[1]);
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printf("cannot create service thread\n");
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return -1;
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}
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D("service thread started, %d:%d\n",s[0], s[1]);
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return s[0];
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}
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int service_to_fd(const char *name)
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{
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int ret = -1;
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if (!strncmp(name, "sideload:", 9)) {
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// this exit status causes recovery to print a special error
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// message saying to use a newer adb (that supports
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// sideload-host).
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exit(3);
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} else if (!strncmp(name, "sideload-host:", 14)) {
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ret = create_service_thread(sideload_host_service, (void*)(name + 14));
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#if 0
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} else if(!strncmp(name, "echo:", 5)){
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ret = create_service_thread(echo_service, 0);
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#endif
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}
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if (ret >= 0) {
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close_on_exec(ret);
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}
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return ret;
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}
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