[CIFS] Fix final user of old string conversion code (afe48c31) · Commits · e / devices / android_kernel_xiaomi_markw

fs/cifs/cifssmb.c

+38 −42

Original line number	Diff line number	Diff line
		@@ -2564,7 +2564,6 @@ validate_ntransact(char buf, char ppparm, char *ppdata,
		*pparmlen = parm_count;
		return 0;
		}
		#endif /* CIFS_EXPERIMENTAL */

		int
		CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
		@@ -2611,14 +2610,14 @@ CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
		} else { /* decode response */
		__u32 data_offset = le32_to_cpu(pSMBr->DataOffset);
		__u32 data_count = le32_to_cpu(pSMBr->DataCount);
		if ((pSMBr->ByteCount < 2) \|\| (data_offset > 512))
		if ((pSMBr->ByteCount < 2) \|\| (data_offset > 512)) {
		/* BB also check enough total bytes returned */
		rc = -EIO; /* bad smb */
		else {
		goto qreparse_out;
		}
		if (data_count && (data_count < 2048)) {
		char end_of_smb = 2 / sizeof byte count */ +
		pSMBr->ByteCount +
		(char *)&pSMBr->ByteCount;
		pSMBr->ByteCount + (char *)&pSMBr->ByteCount;

		struct reparse_data *reparse_buf =
		(struct reparse_data *)
		@@ -2630,23 +2629,19 @@ CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
		}
		if ((reparse_buf->LinkNamesBuf +
		reparse_buf->TargetNameOffset +
		reparse_buf->TargetNameLen) >
		end_of_smb) {
		reparse_buf->TargetNameLen) > end_of_smb) {
		cFYI(1, ("reparse buf beyond SMB"));
		rc = -EIO;
		goto qreparse_out;
		}

		if (pSMBr->hdr.Flags2 & SMBFLG2_UNICODE) {
		name_len = UniStrnlen((wchar_t *)
		cifs_from_ucs2(symlinkinfo, (__le16 *)
		(reparse_buf->LinkNamesBuf +
		reparse_buf->TargetNameOffset),
		min(buflen/2,
		reparse_buf->TargetNameLen / 2));
		cifs_strfromUCS_le(symlinkinfo,
		(__le16 *) (reparse_buf->LinkNamesBuf +
		reparse_buf->TargetNameOffset),
		name_len, nls_codepage);
		buflen,
		reparse_buf->TargetNameLen,
		nls_codepage, 0);
		} else { /* ASCII names */
		strncpy(symlinkinfo,
		reparse_buf->LinkNamesBuf +
		@@ -2663,7 +2658,7 @@ CIFSSMBQueryReparseLinkInfo(const int xid, struct cifsTconInfo *tcon,
		does not go off the end of the buffer */
		cFYI(1, ("readlink result - %s", symlinkinfo));
		}
		}

		qreparse_out:
		cifs_buf_release(pSMB);

		@@ -2672,6 +2667,7 @@ qreparse_out:

		return rc;
		}
		#endif /* CIFS_EXPERIMENTAL */

		#ifdef CONFIG_CIFS_POSIX