mirror of
https://github.com/DarkMatterCore/nxdumptool.git
synced 2024-12-22 16:42:11 +00:00
Custom devoptab wrappers (part 2).
This commit implements a devoptab wrapper for Hash FS sections within gamecard images, using code from hfs.c/h. Other changes include: * poc: disable buffering on FILE objects via setvbuf(). * gamecard: fix crash in gamecardInitializeHashFileSystemContext() while calculating the size for the root Hash FS partition.
This commit is contained in:
Pablo Curiel
parent
d402776032
commit
c392a9f126
4 changed files with 482 additions and 14 deletions
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@ -2431,6 +2431,7 @@ static bool saveGameCardImage(void *userdata)
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goto end;
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}
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setvbuf(shared_thread_data->fp, NULL, _IONBF, 0);
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ftruncate(fileno(shared_thread_data->fp), (off_t)shared_thread_data->total_size);
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if (prepend_key_area && fwrite(&gc_key_area, 1, sizeof(GameCardKeyArea), shared_thread_data->fp) != sizeof(GameCardKeyArea))
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@ -2803,6 +2804,7 @@ static bool saveGameCardRawHfsPartition(HashFileSystemContext *hfs_ctx)
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goto end;
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}
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setvbuf(shared_thread_data->fp, NULL, _IONBF, 0);
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ftruncate(fileno(shared_thread_data->fp), (off_t)shared_thread_data->total_size);
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}
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@ -3222,6 +3224,7 @@ static bool saveNintendoContentArchive(void *userdata)
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goto end;
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}
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setvbuf(shared_thread_data->fp, NULL, _IONBF, 0);
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ftruncate(fileno(shared_thread_data->fp), (off_t)shared_thread_data->total_size);
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}
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@ -3465,6 +3468,7 @@ static bool saveRawPartitionFsSection(PartitionFileSystemContext *pfs_ctx, bool
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goto end;
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}
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setvbuf(shared_thread_data->fp, NULL, _IONBF, 0);
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ftruncate(fileno(shared_thread_data->fp), (off_t)shared_thread_data->total_size);
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}
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@ -3620,6 +3624,7 @@ static bool saveRawRomFsSection(RomFileSystemContext *romfs_ctx, bool use_layere
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goto end;
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}
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setvbuf(shared_thread_data->fp, NULL, _IONBF, 0);
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ftruncate(fileno(shared_thread_data->fp), (off_t)shared_thread_data->total_size);
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}
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@ -3978,6 +3983,7 @@ static void extractedHfsReadThreadFunc(void *arg)
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if (!shared_thread_data->read_error)
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{
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/* Set file size. */
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setvbuf(shared_thread_data->fp, NULL, _IONBF, 0);
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ftruncate(fileno(shared_thread_data->fp), (off_t)hfs_entry->size);
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} else {
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consolePrint("failed to open \"%s\" for writing!\n", hfs_path);
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@ -4365,6 +4371,7 @@ static void extractedPartitionFsReadThreadFunc(void *arg)
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if (!shared_thread_data->read_error)
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{
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/* Set file size. */
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setvbuf(shared_thread_data->fp, NULL, _IONBF, 0);
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ftruncate(fileno(shared_thread_data->fp), (off_t)pfs_entry->size);
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} else {
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consolePrint("failed to open \"%s\" for writing!\n", pfs_path);
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@ -4683,6 +4690,7 @@ static void extractedRomFsReadThreadFunc(void *arg)
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if (!shared_thread_data->read_error)
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{
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/* Set file size. */
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setvbuf(shared_thread_data->fp, NULL, _IONBF, 0);
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ftruncate(fileno(shared_thread_data->fp), (off_t)romfs_file_entry->size);
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} else {
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consolePrint("failed to open \"%s\" for writing!\n", romfs_path);
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@ -4948,7 +4956,7 @@ static void nspThreadFunc(void *arg)
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u8 *buf = NULL;
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char *filename = NULL;
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FILE *fd = NULL;
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FILE *fp = NULL;
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NcaContext *nca_ctx = NULL;
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@ -5393,18 +5401,19 @@ static void nspThreadFunc(void *arg)
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}
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}
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if (!(fd = fopen(filename, "wb")))
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if (!(fp = fopen(filename, "wb")))
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{
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consolePrint("fopen failed\n");
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goto end;
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}
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// set file size
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ftruncate(fileno(fd), (off_t)nsp_size);
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setvbuf(fp, NULL, _IONBF, 0);
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ftruncate(fileno(fp), (off_t)nsp_size);
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// write placeholder header
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memset(buf, 0, nsp_header_size);
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fwrite(buf, 1, nsp_header_size, fd);
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fwrite(buf, 1, nsp_header_size, fp);
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}
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consolePrint("dump process started, please wait. hold b to cancel.\n");
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@ -5512,7 +5521,7 @@ static void nspThreadFunc(void *arg)
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goto end;
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}
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} else {
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fwrite(buf, 1, blksize, fd);
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fwrite(buf, 1, blksize, fp);
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}
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}
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@ -5559,7 +5568,7 @@ static void nspThreadFunc(void *arg)
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goto end;
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}
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} else {
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fwrite(cnmt_ctx.authoring_tool_xml, 1, cnmt_ctx.authoring_tool_xml_size, fd);
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fwrite(cnmt_ctx.authoring_tool_xml, 1, cnmt_ctx.authoring_tool_xml_size, fp);
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}
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nsp_offset += cnmt_ctx.authoring_tool_xml_size;
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@ -5613,7 +5622,7 @@ static void nspThreadFunc(void *arg)
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goto end;
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}
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} else {
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fwrite(icon_ctx->icon_data, 1, icon_ctx->icon_size, fd);
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fwrite(icon_ctx->icon_data, 1, icon_ctx->icon_size, fp);
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}
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nsp_offset += icon_ctx->icon_size;
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@ -5650,7 +5659,7 @@ static void nspThreadFunc(void *arg)
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goto end;
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}
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} else {
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fwrite(authoring_tool_xml, 1, authoring_tool_xml_size, fd);
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fwrite(authoring_tool_xml, 1, authoring_tool_xml_size, fp);
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}
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nsp_offset += authoring_tool_xml_size;
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@ -5676,7 +5685,7 @@ static void nspThreadFunc(void *arg)
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goto end;
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}
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} else {
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fwrite(tik.data, 1, tik.size, fd);
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fwrite(tik.data, 1, tik.size, fp);
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}
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nsp_offset += tik.size;
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@ -5692,7 +5701,7 @@ static void nspThreadFunc(void *arg)
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goto end;
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}
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} else {
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fwrite(raw_cert_chain, 1, raw_cert_chain_size, fd);
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fwrite(raw_cert_chain, 1, raw_cert_chain_size, fp);
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}
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nsp_offset += raw_cert_chain_size;
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@ -5714,8 +5723,8 @@ static void nspThreadFunc(void *arg)
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goto end;
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}
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} else {
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rewind(fd);
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fwrite(buf, 1, nsp_header_size, fd);
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rewind(fp);
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fwrite(buf, 1, nsp_header_size, fp);
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}
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nsp_thread_data->data_written += nsp_header_size;
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@ -5729,9 +5738,9 @@ end:
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if (!success && !nsp_thread_data->transfer_cancelled) nsp_thread_data->error = true;
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mutexUnlock(&g_fileMutex);
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if (fd)
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if (fp)
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{
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fclose(fd);
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fclose(fp);
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if (!success)
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{
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@ -1315,6 +1315,7 @@ static HashFileSystemContext *gamecardInitializeHashFileSystemContext(const char
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hfs_ctx->size = size;
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} else {
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/* Calculate root partition size. */
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hfs_ctx->size = 1; // Prevents hfsGetEntryByIndex() from returning NULL.
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HashFileSystemEntry *hfs_entry = hfsGetEntryByIndex(hfs_ctx, hfs_header.entry_count - 1);
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hfs_ctx->size = (hfs_ctx->header_size + hfs_entry->offset + hfs_entry->size);
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}
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456
source/devoptab/hfs_dev.c
Normal file
456
source/devoptab/hfs_dev.c
Normal file
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@ -0,0 +1,456 @@
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/*
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* hfs_dev.c
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*
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* Loosely based on fs_dev.c from libnx, et al.
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*
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* Copyright (c) 2020-2023, DarkMatterCore <pabloacurielz@gmail.com>.
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*
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* This file is part of nxdumptool (https://github.com/DarkMatterCore/nxdumptool).
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*
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* nxdumptool is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* nxdumptool is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "nxdt_utils.h"
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#include "nxdt_devoptab.h"
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#include "ro_dev.h"
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/* Helper macros. */
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#define HFS_DEV_INIT_VARS DEVOPTAB_INIT_VARS(HashFileSystemContext,)
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#define HFS_DEV_INIT_FILE_VARS DEVOPTAB_INIT_VARS_WITH_FILE_STATE(HashFileSystemContext, HashFileSystemFileState)
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#define HFS_DEV_INIT_DIR_VARS DEVOPTAB_INIT_VARS_WITH_DIR_STATE(HashFileSystemContext, HashFileSystemDirectoryState)
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#define HFS_DEV_INIT_FS_ACCESS DEVOPTAB_INIT_FS_ACCESS(HashFileSystemContext)
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/* Type definitions. */
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typedef struct {
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HashFileSystemEntry *hfs_entry; ///< Hash FS entry metadata.
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const char *name; ///< Entry name.
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u64 offset; ///< Current offset within Hash FS entry data.
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} HashFileSystemFileState;
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typedef struct {
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u32 index; ///< Current Hash FS entry index.
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} HashFileSystemDirectoryState;
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/* Function prototypes. */
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static int hfsdev_open(struct _reent *r, void *fd, const char *path, int flags, int mode);
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static int hfsdev_close(struct _reent *r, void *fd);
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static ssize_t hfsdev_read(struct _reent *r, void *fd, char *ptr, size_t len);
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static off_t hfsdev_seek(struct _reent *r, void *fd, off_t pos, int dir);
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static int hfsdev_fstat(struct _reent *r, void *fd, struct stat *st);
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static int hfsdev_stat(struct _reent *r, const char *file, struct stat *st);
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static DIR_ITER* hfsdev_diropen(struct _reent *r, DIR_ITER *dirState, const char *path);
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static int hfsdev_dirreset(struct _reent *r, DIR_ITER *dirState);
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static int hfsdev_dirnext(struct _reent *r, DIR_ITER *dirState, char *filename, struct stat *filestat);
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static int hfsdev_dirclose(struct _reent *r, DIR_ITER *dirState);
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static int hfsdev_statvfs(struct _reent *r, const char *path, struct statvfs *buf);
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static const char *hfsdev_get_truncated_path(struct _reent *r, const char *path);
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static void hfsdev_fill_stat(struct stat *st, const HashFileSystemEntry *hfs_entry, time_t mount_time);
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/* Global variables. */
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static const devoptab_t hfsdev_devoptab = {
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.name = NULL,
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.structSize = sizeof(HashFileSystemFileState),
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.open_r = hfsdev_open,
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.close_r = hfsdev_close,
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.write_r = rodev_write, ///< Not supported by Hash FS sections.
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.read_r = hfsdev_read,
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.seek_r = hfsdev_seek,
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.fstat_r = hfsdev_fstat,
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.stat_r = hfsdev_stat,
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.link_r = rodev_link, ///< Not supported by Hash FS sections.
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.unlink_r = rodev_unlink, ///< Not supported by Hash FS sections.
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.chdir_r = rodev_chdir, ///< No need to deal with cwd shenanigans, so we won't support it.
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.rename_r = rodev_rename, ///< Not supported by Hash FS sections.
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.mkdir_r = rodev_mkdir, ///< Not supported by Hash FS sections.
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.dirStateSize = sizeof(HashFileSystemDirectoryState),
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.diropen_r = hfsdev_diropen, ///< Hash FS sections don't support directories, but we'll allow operations on the FS root.
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.dirreset_r = hfsdev_dirreset, ///< Hash FS sections don't support directories, but we'll allow operations on the FS root.
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.dirnext_r = hfsdev_dirnext, ///< Hash FS sections don't support directories, but we'll allow operations on the FS root.
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.dirclose_r = hfsdev_dirclose, ///< Hash FS sections don't support directories, but we'll allow operations on the FS root.
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.statvfs_r = hfsdev_statvfs,
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.ftruncate_r = rodev_ftruncate, ///< Not supported by Hash FS sections.
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.fsync_r = rodev_fsync, ///< Not supported by Hash FS sections.
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.deviceData = NULL,
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.chmod_r = rodev_chmod, ///< Not supported by Hash FS sections.
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.fchmod_r = rodev_fchmod, ///< Not supported by Hash FS sections.
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.rmdir_r = rodev_rmdir, ///< Not supported by Hash FS sections.
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.lstat_r = hfsdev_stat, ///< Symlinks aren't supported, so we'll just alias lstat() to stat().
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.utimes_r = rodev_utimes, ///< Not supported by Hash FS sections.
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.fpathconf_r = rodev_fpathconf, ///< Not supported by Hash FS sections.
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.pathconf_r = rodev_pathconf, ///< Not supported by Hash FS sections.
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.symlink_r = rodev_symlink, ///< Not supported by Hash FS sections.
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.readlink_r = rodev_readlink ///< Not supported by Hash FS sections.
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};
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const devoptab_t *hfsdev_get_devoptab()
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{
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return &hfsdev_devoptab;
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}
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static int hfsdev_open(struct _reent *r, void *fd, const char *path, int flags, int mode)
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{
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NX_IGNORE_ARG(mode);
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HFS_DEV_INIT_FILE_VARS;
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HFS_DEV_INIT_FS_ACCESS;
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/* Validate input. */
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if (!file || (flags & (O_WRONLY | O_RDWR | O_APPEND | O_CREAT | O_TRUNC | O_EXCL))) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
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/* Get truncated path. */
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if (!(path = hfsdev_get_truncated_path(r, path))) DEVOPTAB_EXIT;
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LOG_MSG_DEBUG("Opening \"%s:/%s\" with flags 0x%X.", dev_ctx->name, path, flags);
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/* Reset file descriptor. */
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memset(file, 0, sizeof(HashFileSystemFileState));
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/* Get Hash FS entry. */
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if (!(file->hfs_entry = hfsGetEntryByName(fs_ctx, path)) || !(file->name = hfsGetEntryName(fs_ctx, file->hfs_entry))) DEVOPTAB_SET_ERROR(ENOENT);
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end:
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DEVOPTAB_DEINIT_VARS;
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DEVOPTAB_RETURN_INT(0);
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}
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static int hfsdev_close(struct _reent *r, void *fd)
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{
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HFS_DEV_INIT_FILE_VARS;
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/* Sanity check. */
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if (!file) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
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#if LOG_LEVEL == LOG_LEVEL_DEBUG
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DEVOPTAB_DECL_DEV_CTX;
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LOG_MSG_DEBUG("Closing \"%s:/%s\".", dev_ctx->name, file->name);
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#endif
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/* Reset file descriptor. */
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memset(file, 0, sizeof(HashFileSystemFileState));
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end:
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DEVOPTAB_DEINIT_VARS;
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DEVOPTAB_RETURN_INT(0);
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}
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static ssize_t hfsdev_read(struct _reent *r, void *fd, char *ptr, size_t len)
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{
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HFS_DEV_INIT_FILE_VARS;
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HFS_DEV_INIT_FS_ACCESS;
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/* Sanity check. */
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if (!file || !ptr || !len) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
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LOG_MSG_DEBUG("Reading 0x%lX byte(s) at offset 0x%lX from \"%s:/%s\".", len, file->offset, dev_ctx->name, file->name);
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|
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/* Read file data. */
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if (!hfsReadEntryData(fs_ctx, file->hfs_entry, ptr, len, file->offset)) DEVOPTAB_SET_ERROR_AND_EXIT(EIO);
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|
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/* Adjust offset. */
|
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file->offset += len;
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end:
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DEVOPTAB_DEINIT_VARS;
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DEVOPTAB_RETURN_INT((ssize_t)len);
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}
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static off_t hfsdev_seek(struct _reent *r, void *fd, off_t pos, int dir)
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{
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off_t offset = 0;
|
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|
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HFS_DEV_INIT_FILE_VARS;
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|
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/* Sanity check. */
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if (!file) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
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|
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/* Find the offset to seek from. */
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switch(dir)
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{
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case SEEK_SET: /* Set absolute position relative to zero (start offset). */
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break;
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case SEEK_CUR: /* Set position relative to the current position. */
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offset = (off_t)file->offset;
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break;
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case SEEK_END: /* Set position relative to EOF. */
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offset = (off_t)file->hfs_entry->size;
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break;
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default: /* Invalid option. */
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DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
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}
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/* Don't allow negative seeks beyond the beginning of file. */
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if (pos < 0 && offset < -pos) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
|
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|
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/* Calculate actual offset. */
|
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offset += pos;
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||||
/* Don't allow positive seeks beyond the end of file. */
|
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if (offset > (off_t)file->hfs_entry->size) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
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#if LOG_LEVEL == LOG_LEVEL_DEBUG
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DEVOPTAB_DECL_DEV_CTX;
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LOG_MSG_DEBUG("Seeking to offset 0x%lX from \"%s:/%s\".", offset, dev_ctx->name, file->name);
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#endif
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/* Adjust offset. */
|
||||
file->offset = (u64)offset;
|
||||
|
||||
end:
|
||||
DEVOPTAB_DEINIT_VARS;
|
||||
DEVOPTAB_RETURN_INT(offset);
|
||||
}
|
||||
|
||||
static int hfsdev_fstat(struct _reent *r, void *fd, struct stat *st)
|
||||
{
|
||||
HFS_DEV_INIT_FILE_VARS;
|
||||
DEVOPTAB_DECL_DEV_CTX;
|
||||
|
||||
/* Sanity check. */
|
||||
if (!file || !st) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
|
||||
|
||||
LOG_MSG_DEBUG("Getting file stats for \"%s:/%s\".", dev_ctx->name, file->name);
|
||||
|
||||
/* Fill stat info. */
|
||||
hfsdev_fill_stat(st, file->hfs_entry, dev_ctx->mount_time);
|
||||
|
||||
end:
|
||||
DEVOPTAB_DEINIT_VARS;
|
||||
DEVOPTAB_RETURN_INT(0);
|
||||
}
|
||||
|
||||
static int hfsdev_stat(struct _reent *r, const char *file, struct stat *st)
|
||||
{
|
||||
HashFileSystemEntry *hfs_entry = NULL;
|
||||
|
||||
HFS_DEV_INIT_VARS;
|
||||
HFS_DEV_INIT_FS_ACCESS;
|
||||
|
||||
/* Sanity check. */
|
||||
if (!st) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
|
||||
|
||||
/* Get truncated path. */
|
||||
if (!(file = hfsdev_get_truncated_path(r, file))) DEVOPTAB_EXIT;
|
||||
|
||||
LOG_MSG_DEBUG("Getting file stats for \"%s:/%s\".", dev_ctx->name, file);
|
||||
|
||||
/* Get Hash FS entry. */
|
||||
if (!(hfs_entry = hfsGetEntryByName(fs_ctx, file))) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
|
||||
|
||||
/* Fill stat info. */
|
||||
hfsdev_fill_stat(st, hfs_entry, dev_ctx->mount_time);
|
||||
|
||||
end:
|
||||
DEVOPTAB_DEINIT_VARS;
|
||||
DEVOPTAB_RETURN_INT(0);
|
||||
}
|
||||
|
||||
static DIR_ITER *hfsdev_diropen(struct _reent *r, DIR_ITER *dirState, const char *path)
|
||||
{
|
||||
DIR_ITER *ret = NULL;
|
||||
|
||||
HFS_DEV_INIT_DIR_VARS;
|
||||
|
||||
/* Get truncated path. */
|
||||
/* We can only work with the FS root here, so we won't accept anything else. */
|
||||
if (!(path = hfsdev_get_truncated_path(r, path))) DEVOPTAB_EXIT;
|
||||
if (*path) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
|
||||
|
||||
#if LOG_LEVEL == LOG_LEVEL_DEBUG
|
||||
DEVOPTAB_DECL_DEV_CTX;
|
||||
LOG_MSG_DEBUG("Opening directory \"%s:/\".", dev_ctx->name);
|
||||
#endif
|
||||
|
||||
/* Reset directory state. */
|
||||
memset(dir, 0, sizeof(HashFileSystemDirectoryState));
|
||||
|
||||
/* Update return value. */
|
||||
ret = dirState;
|
||||
|
||||
end:
|
||||
DEVOPTAB_DEINIT_VARS;
|
||||
DEVOPTAB_RETURN_PTR(ret);
|
||||
}
|
||||
|
||||
static int hfsdev_dirreset(struct _reent *r, DIR_ITER *dirState)
|
||||
{
|
||||
HFS_DEV_INIT_DIR_VARS;
|
||||
|
||||
#if LOG_LEVEL == LOG_LEVEL_DEBUG
|
||||
DEVOPTAB_DECL_DEV_CTX;
|
||||
LOG_MSG_DEBUG("Resetting directory state for \"%s:/\".", dev_ctx->name);
|
||||
#endif
|
||||
|
||||
/* Reset directory state. */
|
||||
dir->index = 0;
|
||||
|
||||
DEVOPTAB_DEINIT_VARS;
|
||||
DEVOPTAB_RETURN_INT(0);
|
||||
}
|
||||
|
||||
static int hfsdev_dirnext(struct _reent *r, DIR_ITER *dirState, char *filename, struct stat *filestat)
|
||||
{
|
||||
HashFileSystemEntry *hfs_entry = NULL;
|
||||
const char *fname = NULL;
|
||||
|
||||
HFS_DEV_INIT_DIR_VARS;
|
||||
HFS_DEV_INIT_FS_ACCESS;
|
||||
|
||||
/* Sanity check. */
|
||||
if (!filename || !filestat) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
|
||||
|
||||
LOG_MSG_DEBUG("Getting info for next directory entry in \"%s:/\" (index %u).", dev_ctx->name, dir->index);
|
||||
|
||||
/* Check if we haven't reached EOD. */
|
||||
if (dir->index >= hfsGetEntryCount(fs_ctx)) DEVOPTAB_SET_ERROR_AND_EXIT(ENOENT);
|
||||
|
||||
/* Get Hash FS entry. */
|
||||
if (!(hfs_entry = hfsGetEntryByIndex(fs_ctx, dir->index)) || !(fname = hfsGetEntryName(fs_ctx, hfs_entry))) DEVOPTAB_SET_ERROR_AND_EXIT(EIO);
|
||||
|
||||
/* Copy filename. */
|
||||
strcpy(filename, fname);
|
||||
|
||||
/* Fill stat info. */
|
||||
hfsdev_fill_stat(filestat, hfs_entry, dev_ctx->mount_time);
|
||||
|
||||
/* Adjust index. */
|
||||
dir->index++;
|
||||
|
||||
end:
|
||||
DEVOPTAB_DEINIT_VARS;
|
||||
DEVOPTAB_RETURN_INT(0);
|
||||
}
|
||||
|
||||
static int hfsdev_dirclose(struct _reent *r, DIR_ITER *dirState)
|
||||
{
|
||||
HFS_DEV_INIT_DIR_VARS;
|
||||
|
||||
#if LOG_LEVEL == LOG_LEVEL_DEBUG
|
||||
DEVOPTAB_DECL_DEV_CTX;
|
||||
LOG_MSG_DEBUG("Closing directory \"%s:/\".", dev_ctx->name);
|
||||
#endif
|
||||
|
||||
/* Reset directory state. */
|
||||
memset(dir, 0, sizeof(HashFileSystemDirectoryState));
|
||||
|
||||
DEVOPTAB_DEINIT_VARS;
|
||||
DEVOPTAB_RETURN_INT(0);
|
||||
}
|
||||
|
||||
static int hfsdev_statvfs(struct _reent *r, const char *path, struct statvfs *buf)
|
||||
{
|
||||
NX_IGNORE_ARG(path);
|
||||
|
||||
u64 ext_fs_size = 0;
|
||||
|
||||
HFS_DEV_INIT_VARS;
|
||||
HFS_DEV_INIT_FS_ACCESS;
|
||||
|
||||
/* Sanity check. */
|
||||
if (!buf) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
|
||||
|
||||
LOG_MSG_DEBUG("Getting filesystem stats for \"%s:\"", dev_ctx->name);
|
||||
|
||||
/* Get Hash FS total data size. */
|
||||
if (!hfsGetTotalDataSize(fs_ctx, &ext_fs_size)) DEVOPTAB_SET_ERROR_AND_EXIT(EIO);
|
||||
|
||||
/* Fill filesystem stats. */
|
||||
memset(buf, 0, sizeof(struct statvfs));
|
||||
|
||||
buf->f_bsize = 1;
|
||||
buf->f_frsize = 1;
|
||||
buf->f_blocks = ext_fs_size;
|
||||
buf->f_bfree = 0;
|
||||
buf->f_bavail = 0;
|
||||
buf->f_files = 0;
|
||||
buf->f_ffree = 0;
|
||||
buf->f_favail = 0;
|
||||
buf->f_fsid = 0;
|
||||
buf->f_flag = ST_NOSUID;
|
||||
buf->f_namemax = FS_MAX_PATH;
|
||||
|
||||
end:
|
||||
DEVOPTAB_DEINIT_VARS;
|
||||
DEVOPTAB_RETURN_INT(0);
|
||||
}
|
||||
|
||||
static const char *hfsdev_get_truncated_path(struct _reent *r, const char *path)
|
||||
{
|
||||
const u8 *p = (const u8*)path;
|
||||
ssize_t units = 0;
|
||||
u32 code = 0;
|
||||
size_t len = 0;
|
||||
bool path_sep_skipped = false;
|
||||
|
||||
DEVOPTAB_DECL_ERROR_STATE;
|
||||
|
||||
if (!r || !path || !*path) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
|
||||
|
||||
LOG_MSG_DEBUG("Input path: \"%s\".", path);
|
||||
|
||||
/* Move the path pointer to the start of the actual path. */
|
||||
do {
|
||||
units = decode_utf8(&code, p);
|
||||
if (units < 0) DEVOPTAB_SET_ERROR_AND_EXIT(EILSEQ);
|
||||
p += units;
|
||||
} while(code >= ' ' && code != ':');
|
||||
|
||||
/* We found a colon; p points to the actual path. */
|
||||
if (code == ':') path = (const char*)p;
|
||||
|
||||
/* Skip the leading slash, if available. */
|
||||
if (path[0] == '/')
|
||||
{
|
||||
path++;
|
||||
path_sep_skipped = true;
|
||||
}
|
||||
|
||||
/* Make sure there are no more colons or slashes and that the remainder of the string is valid UTF-8. */
|
||||
p = (const u8*)path;
|
||||
|
||||
do {
|
||||
units = decode_utf8(&code, p);
|
||||
if (units < 0) DEVOPTAB_SET_ERROR_AND_EXIT(EILSEQ);
|
||||
if (code == ':' || code == '/') DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
|
||||
p += units;
|
||||
} while(code >= ' ');
|
||||
|
||||
/* Verify fixed path length. */
|
||||
len = strlen(path);
|
||||
if (!len && !path_sep_skipped) DEVOPTAB_SET_ERROR_AND_EXIT(EINVAL);
|
||||
if (len >= FS_MAX_PATH) DEVOPTAB_SET_ERROR_AND_EXIT(ENAMETOOLONG);
|
||||
|
||||
LOG_MSG_DEBUG("Truncated path: \"%s\".", path);
|
||||
|
||||
end:
|
||||
DEVOPTAB_RETURN_PTR(path);
|
||||
}
|
||||
|
||||
static void hfsdev_fill_stat(struct stat *st, const HashFileSystemEntry *hfs_entry, time_t mount_time)
|
||||
{
|
||||
/* Clear stat struct. */
|
||||
memset(st, 0, sizeof(struct stat));
|
||||
|
||||
/* Fill stat struct. */
|
||||
/* We're always dealing with a file entry. */
|
||||
st->st_nlink = 1;
|
||||
st->st_size = (off_t)hfs_entry->size;
|
||||
st->st_mode = (S_IFREG | S_IRUSR | S_IRGRP | S_IROTH);
|
||||
st->st_atime = st->st_mtime = st->st_ctime = mount_time;
|
||||
}
|
||||
|
|
@ -42,6 +42,7 @@ static const u32 g_devoptabDeviceCount = MAX_ELEMENTS(g_devoptabDevices);
|
|||
/* Function prototypes. */
|
||||
|
||||
const devoptab_t *pfsdev_get_devoptab();
|
||||
const devoptab_t *hfsdev_get_devoptab();
|
||||
|
||||
static bool devoptabMountDevice(void *fs_ctx, const char *name, u8 type);
|
||||
static DevoptabDeviceContext *devoptabFindDevice(const char *name);
|
||||
|
|
@ -172,6 +173,7 @@ static bool devoptabMountDevice(void *fs_ctx, const char *name, u8 type)
|
|||
device = pfsdev_get_devoptab();
|
||||
break;
|
||||
case DevoptabDeviceType_HashFileSystem:
|
||||
device = hfsdev_get_devoptab();
|
||||
break;
|
||||
case DevoptabDeviceType_RomFileSystem:
|
||||
break;
|
||||
|
|
|
|||
Loading…
Reference in a new issue