Move to using the new unified fstab in recovery.

Instead of reading it's own fstab, have recovery invoke
fs_mgr to read the unified fstab.

Change-Id: I80c75d2c53b809ac60a4a69f0ef7ebfa707c39e9
diff --git a/bootloader.cpp b/bootloader.cpp
index baaddc5..600d238 100644
--- a/bootloader.cpp
+++ b/bootloader.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include <fs_mgr.h>
 #include "bootloader.h"
 #include "common.h"
 #include "mtdutils/mtdutils.h"
@@ -71,22 +72,22 @@
                                       const Volume* v) {
     size_t write_size;
     mtd_scan_partitions();
-    const MtdPartition *part = mtd_find_partition_by_name(v->device);
+    const MtdPartition *part = mtd_find_partition_by_name(v->blk_device);
     if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) {
-        LOGE("Can't find %s\n", v->device);
+        LOGE("Can't find %s\n", v->blk_device);
         return -1;
     }
 
     MtdReadContext *read = mtd_read_partition(part);
     if (read == NULL) {
-        LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
+        LOGE("Can't open %s\n(%s)\n", v->blk_device, strerror(errno));
         return -1;
     }
 
     const ssize_t size = write_size * MISC_PAGES;
     char data[size];
     ssize_t r = mtd_read_data(read, data, size);
-    if (r != size) LOGE("Can't read %s\n(%s)\n", v->device, strerror(errno));
+    if (r != size) LOGE("Can't read %s\n(%s)\n", v->blk_device, strerror(errno));
     mtd_read_close(read);
     if (r != size) return -1;
 
@@ -97,22 +98,22 @@
                                       const Volume* v) {
     size_t write_size;
     mtd_scan_partitions();
-    const MtdPartition *part = mtd_find_partition_by_name(v->device);
+    const MtdPartition *part = mtd_find_partition_by_name(v->blk_device);
     if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) {
-        LOGE("Can't find %s\n", v->device);
+        LOGE("Can't find %s\n", v->blk_device);
         return -1;
     }
 
     MtdReadContext *read = mtd_read_partition(part);
     if (read == NULL) {
-        LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
+        LOGE("Can't open %s\n(%s)\n", v->blk_device, strerror(errno));
         return -1;
     }
 
     ssize_t size = write_size * MISC_PAGES;
     char data[size];
     ssize_t r = mtd_read_data(read, data, size);
-    if (r != size) LOGE("Can't read %s\n(%s)\n", v->device, strerror(errno));
+    if (r != size) LOGE("Can't read %s\n(%s)\n", v->blk_device, strerror(errno));
     mtd_read_close(read);
     if (r != size) return -1;
 
@@ -120,16 +121,16 @@
 
     MtdWriteContext *write = mtd_write_partition(part);
     if (write == NULL) {
-        LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
+        LOGE("Can't open %s\n(%s)\n", v->blk_device, strerror(errno));
         return -1;
     }
     if (mtd_write_data(write, data, size) != size) {
-        LOGE("Can't write %s\n(%s)\n", v->device, strerror(errno));
+        LOGE("Can't write %s\n(%s)\n", v->blk_device, strerror(errno));
         mtd_write_close(write);
         return -1;
     }
     if (mtd_write_close(write)) {
-        LOGE("Can't finish %s\n(%s)\n", v->device, strerror(errno));
+        LOGE("Can't finish %s\n(%s)\n", v->blk_device, strerror(errno));
         return -1;
     }
 
@@ -161,20 +162,20 @@
 
 static int get_bootloader_message_block(struct bootloader_message *out,
                                         const Volume* v) {
-    wait_for_device(v->device);
-    FILE* f = fopen(v->device, "rb");
+    wait_for_device(v->blk_device);
+    FILE* f = fopen(v->blk_device, "rb");
     if (f == NULL) {
-        LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
+        LOGE("Can't open %s\n(%s)\n", v->blk_device, strerror(errno));
         return -1;
     }
     struct bootloader_message temp;
     int count = fread(&temp, sizeof(temp), 1, f);
     if (count != 1) {
-        LOGE("Failed reading %s\n(%s)\n", v->device, strerror(errno));
+        LOGE("Failed reading %s\n(%s)\n", v->blk_device, strerror(errno));
         return -1;
     }
     if (fclose(f) != 0) {
-        LOGE("Failed closing %s\n(%s)\n", v->device, strerror(errno));
+        LOGE("Failed closing %s\n(%s)\n", v->blk_device, strerror(errno));
         return -1;
     }
     memcpy(out, &temp, sizeof(temp));
@@ -183,19 +184,19 @@
 
 static int set_bootloader_message_block(const struct bootloader_message *in,
                                         const Volume* v) {
-    wait_for_device(v->device);
-    FILE* f = fopen(v->device, "wb");
+    wait_for_device(v->blk_device);
+    FILE* f = fopen(v->blk_device, "wb");
     if (f == NULL) {
-        LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
+        LOGE("Can't open %s\n(%s)\n", v->blk_device, strerror(errno));
         return -1;
     }
     int count = fwrite(in, sizeof(*in), 1, f);
     if (count != 1) {
-        LOGE("Failed writing %s\n(%s)\n", v->device, strerror(errno));
+        LOGE("Failed writing %s\n(%s)\n", v->blk_device, strerror(errno));
         return -1;
     }
     if (fclose(f) != 0) {
-        LOGE("Failed closing %s\n(%s)\n", v->device, strerror(errno));
+        LOGE("Failed closing %s\n(%s)\n", v->blk_device, strerror(errno));
         return -1;
     }
     return 0;