Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 18bddd10 authored by Stefan Metzmacher's avatar Stefan Metzmacher Committed by Steve French
Browse files

cifs: implement CIFSFormatMFSymlink() 



Signed-off-by: default avatarStefan Metzmacher <metze@samba.org>
Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
parent 0fd43ae4

fs/cifs/link.c

+41 −0
Original line number Original line Diff line number Diff line
@@ -92,6 +92,47 @@ CIFSParseMFSymlink(const u8 *buf, 
}

}





static int

static int

CIFSFormatMFSymlink(u8 *buf, unsigned int buf_len, const char *link_str)

{

	unsigned int link_len;

	unsigned int ofs;

	struct MD5Context md5_ctx;

	u8 md5_hash[16];



	if (buf_len != CIFS_MF_SYMLINK_FILE_SIZE)

		return -EINVAL;



	link_len = strlen(link_str);



	if (link_len > CIFS_MF_SYMLINK_LINK_MAXLEN)

		return -ENAMETOOLONG;



	cifs_MD5_init(&md5_ctx);

	cifs_MD5_update(&md5_ctx, (const u8 *)link_str, link_len);

	cifs_MD5_final(md5_hash, &md5_ctx);



	snprintf(buf, buf_len,

		 CIFS_MF_SYMLINK_LEN_FORMAT CIFS_MF_SYMLINK_MD5_FORMAT,

		 link_len,

		 CIFS_MF_SYMLINK_MD5_ARGS(md5_hash));



	ofs = CIFS_MF_SYMLINK_LINK_OFFSET;

	memcpy(buf + ofs, link_str, link_len);



	ofs += link_len;

	if (ofs < CIFS_MF_SYMLINK_FILE_SIZE) {

		buf[ofs] = '\n';

		ofs++;

	}



	while (ofs < CIFS_MF_SYMLINK_FILE_SIZE) {

		buf[ofs] = ' ';

		ofs++;

	}



	return 0;

}



CIFSQueryMFSymLink(const int xid, struct cifsTconInfo *tcon,

CIFSQueryMFSymLink(const int xid, struct cifsTconInfo *tcon,

		   const unsigned char *searchName, char **symlinkinfo,

		   const unsigned char *searchName, char **symlinkinfo,

		   const struct nls_table *nls_codepage, int remap)

		   const struct nls_table *nls_codepage, int remap)