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https://github.com/aircrack-ng/rtl8812au.git
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Hard disable old debug read/write file functions
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Christian B
GitHub
parent
b0986e5c71
commit
257d7827a0
@ -1986,199 +1986,14 @@ inline int ATOMIC_DEC_RETURN(ATOMIC_T *v)
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}
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#ifdef PLATFORM_LINUX
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/*
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* Open a file with the specific @param path, @param flag, @param mode
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* @param fpp the pointer of struct file pointer to get struct file pointer while file opening is success
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* @param path the path of the file to open
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* @param flag file operation flags, please refer to linux document
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* @param mode please refer to linux document
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* @return Linux specific error code
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*/
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static int openFile(struct file **fpp, const char *path, int flag, int mode)
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{
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struct file *fp;
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fp = filp_open(path, flag, mode);
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if (IS_ERR(fp)) {
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*fpp = NULL;
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return PTR_ERR(fp);
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} else {
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*fpp = fp;
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return 0;
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}
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}
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/*
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* Close the file with the specific @param fp
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* @param fp the pointer of struct file to close
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* @return always 0
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*/
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static int closeFile(struct file *fp)
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{
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filp_close(fp, NULL);
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return 0;
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}
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static int readFile(struct file *fp, char *buf, int len)
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{
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int rlen = 0, sum = 0;
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 1, 0))
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if (!(fp->f_mode & FMODE_CAN_READ))
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#else
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if (!fp->f_op || !fp->f_op->read)
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#endif
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return -EPERM;
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while (sum < len) {
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 1, 0) && LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0))
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rlen = __vfs_read(fp, buf + sum, len - sum, &fp->f_pos);
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#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0))
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rlen = kernel_read(fp, buf + sum, len - sum, &fp->f_pos);
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#else
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rlen = fp->f_op->read(fp, buf + sum, len - sum, &fp->f_pos);
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#endif
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if (rlen > 0)
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sum += rlen;
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else if (0 != rlen)
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return rlen;
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else
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break;
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}
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return sum;
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}
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static int writeFile(struct file *fp, char *buf, int len)
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{
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int wlen = 0, sum = 0;
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if (!fp->f_op || !fp->f_op->write)
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return -EPERM;
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while (sum < len) {
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wlen = fp->f_op->write(fp, buf + sum, len - sum, &fp->f_pos);
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if (wlen > 0)
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sum += wlen;
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else if (0 != wlen)
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return wlen;
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else
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break;
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}
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return sum;
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}
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/*
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* Test if the specifi @param path is a file and readable
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* If readable, @param sz is got
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* @param path the path of the file to test
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* @return Linux specific error code
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*/
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static int isFileReadable(const char *path, u32 *sz)
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{
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struct file *fp;
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int ret = 0;
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mm_segment_t oldfs;
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char buf;
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fp = filp_open(path, O_RDONLY, 0);
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if (IS_ERR(fp))
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ret = PTR_ERR(fp);
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else {
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oldfs = get_fs();
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set_fs(get_ds());
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if (1 != readFile(fp, &buf, 1))
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ret = PTR_ERR(fp);
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if (ret == 0 && sz) {
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0))
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*sz = i_size_read(fp->f_path.dentry->d_inode);
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#else
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*sz = i_size_read(fp->f_dentry->d_inode);
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#endif
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}
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set_fs(oldfs);
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filp_close(fp, NULL);
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}
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return ret;
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}
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/*
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* Open the file with @param path and retrive the file content into memory starting from @param buf for @param sz at most
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* @param path the path of the file to open and read
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* @param buf the starting address of the buffer to store file content
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* @param sz how many bytes to read at most
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* @return the byte we've read, or Linux specific error code
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*/
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static int retriveFromFile(const char *path, u8 *buf, u32 sz)
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{
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int ret = -1;
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mm_segment_t oldfs;
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struct file *fp;
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if (path && buf) {
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ret = openFile(&fp, path, O_RDONLY, 0);
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if (0 == ret) {
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RTW_INFO("%s openFile path:%s fp=%p\n", __FUNCTION__, path , fp);
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oldfs = get_fs();
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set_fs(get_ds());
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ret = readFile(fp, buf, sz);
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set_fs(oldfs);
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closeFile(fp);
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RTW_INFO("%s readFile, ret:%d\n", __FUNCTION__, ret);
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} else
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RTW_INFO("%s openFile path:%s Fail, ret:%d\n", __FUNCTION__, path, ret);
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} else {
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RTW_INFO("%s NULL pointer\n", __FUNCTION__);
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ret = -EINVAL;
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}
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return ret;
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}
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/*
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* Open the file with @param path and wirte @param sz byte of data starting from @param buf into the file
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* @param path the path of the file to open and write
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* @param buf the starting address of the data to write into file
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* @param sz how many bytes to write at most
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* @return the byte we've written, or Linux specific error code
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*/
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static int storeToFile(const char *path, u8 *buf, u32 sz)
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{
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int ret = 0;
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mm_segment_t oldfs;
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struct file *fp;
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;
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if (path && buf) {
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ret = openFile(&fp, path, O_CREAT | O_WRONLY, 0666);
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if (0 == ret) {
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RTW_INFO("%s openFile path:%s fp=%p\n", __FUNCTION__, path , fp);
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oldfs = get_fs();
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set_fs(get_ds());
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ret = writeFile(fp, buf, sz);
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set_fs(oldfs);
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closeFile(fp);
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RTW_INFO("%s writeFile, ret:%d\n", __FUNCTION__, ret);
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} else
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RTW_INFO("%s openFile path:%s Fail, ret:%d\n", __FUNCTION__, path, ret);
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} else {
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RTW_INFO("%s NULL pointer\n", __FUNCTION__);
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ret = -EINVAL;
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}
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return ret;
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}
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#endif /* PLATFORM_LINUX */
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/*
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* Test if the specifi @param path is a file and readable
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@ -2187,15 +2002,8 @@ static int storeToFile(const char *path, u8 *buf, u32 sz)
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*/
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int rtw_is_file_readable(const char *path)
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{
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#ifdef PLATFORM_LINUX
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if (isFileReadable(path, NULL) == 0)
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return _TRUE;
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else
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return _FALSE;
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#else
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/* Todo... */
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return _FALSE;
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#endif
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}
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/*
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@ -2206,15 +2014,8 @@ int rtw_is_file_readable(const char *path)
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*/
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int rtw_is_file_readable_with_size(const char *path, u32 *sz)
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{
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#ifdef PLATFORM_LINUX
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if (isFileReadable(path, sz) == 0)
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return _TRUE;
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else
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return _FALSE;
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#else
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/* Todo... */
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return _FALSE;
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#endif
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}
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/*
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@ -2226,13 +2027,8 @@ int rtw_is_file_readable_with_size(const char *path, u32 *sz)
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*/
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int rtw_retrieve_from_file(const char *path, u8 *buf, u32 sz)
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{
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#ifdef PLATFORM_LINUX
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int ret = retriveFromFile(path, buf, sz);
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return ret >= 0 ? ret : 0;
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#else
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/* Todo... */
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return 0;
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#endif
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}
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/*
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@ -2244,13 +2040,8 @@ int rtw_retrieve_from_file(const char *path, u8 *buf, u32 sz)
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*/
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int rtw_store_to_file(const char *path, u8 *buf, u32 sz)
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{
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#ifdef PLATFORM_LINUX
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int ret = storeToFile(path, buf, sz);
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return ret >= 0 ? ret : 0;
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#else
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/* Todo... */
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return 0;
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#endif
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}
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#ifdef PLATFORM_LINUX
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