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Commit 4c0d2a5a authored by Long Li's avatar Long Li Committed by Steve French
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CIFS: Pass page offset for calculating signature 



When calculating signature for the packet, it needs to read into the
correct page offset for the data.

Signed-off-by: default avatarLong Li <longli@microsoft.com>
Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 7cf20bce

fs/cifs/cifsencrypt.c

+5 −4
Original line number Diff line number Diff line
@@ -66,11 +66,12 @@ int __cifs_calc_signature(struct smb_rqst *rqst, 


	/* now hash over the rq_pages array */

	for (i = 0; i < rqst->rq_npages; i++) {

		void *kaddr = kmap(rqst->rq_pages[i]);

		size_t len = rqst->rq_pagesz;

		void *kaddr;

		unsigned int len, offset;



		if (i == rqst->rq_npages - 1)

			len = rqst->rq_tailsz;

		rqst_page_get_length(rqst, i, &len, &offset);



		kaddr = (char *) kmap(rqst->rq_pages[i]) + offset;



		crypto_shash_update(shash, kaddr, len);