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[CRYPTO] users: Fix up scatterlist conversion errors

Browse Source 
This patch fixes the errors made in the users of the crypto layer during
the sg_init_table conversion.  It also adds a few conversions that were
missing altogether.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu 2007-10-27 00:52:07 -07:00 committed by David S. Miller
parent a5a613a429
commit 68e3f5dd4d
13 changed files with 93 additions and 58 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/crypto/padlock-sha.c
View File

@ -55,7 +55,7 @@ static void padlock_sha_bypass(struct crypto_tfm *tfm)
if (ctx(tfm)->data && ctx(tfm)->used) {
struct scatterlist sg;
sg_set_buf(&sg, ctx(tfm)->data, ctx(tfm)->used);
sg_init_one(&sg, ctx(tfm)->data, ctx(tfm)->used);
crypto_hash_update(&ctx(tfm)->fallback, &sg, sg.length);
}
@ -79,7 +79,7 @@ static void padlock_sha_update(struct crypto_tfm *tfm,
if (unlikely(ctx(tfm)->bypass)) {
struct scatterlist sg;
sg_set_buf(&sg, (uint8_t *)data, length);
sg_init_one(&sg, (uint8_t *)data, length);
crypto_hash_update(&ctx(tfm)->fallback, &sg, length);
return;
}

2
drivers/md/dm-crypt.c
View File

@ -168,7 +168,7 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
return -ENOMEM;
}
sg_set_buf(&sg, cc->key, cc->key_size);
sg_init_one(&sg, cc->key, cc->key_size);
desc.tfm = hash_tfm;
desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
err = crypto_hash_digest(&desc, &sg, cc->key_size, salt);

10
drivers/net/ppp_mppe.c
View File

@ -68,7 +68,7 @@ MODULE_VERSION("1.0.2");
static unsigned int
setup_sg(struct scatterlist *sg, const void *address, unsigned int length)
{
sg_init_one(sg, address, length);
sg_set_buf(sg, address, length);
return length;
}
@ -140,6 +140,8 @@ static void get_new_key_from_sha(struct ppp_mppe_state * state)
struct scatterlist sg[4];
unsigned int nbytes;
sg_init_table(sg, 4);
nbytes = setup_sg(&sg[0], state->master_key, state->keylen);
nbytes += setup_sg(&sg[1], sha_pad->sha_pad1,
sizeof(sha_pad->sha_pad1));
@ -166,6 +168,8 @@ static void mppe_rekey(struct ppp_mppe_state * state, int initial_key)
if (!initial_key) {
crypto_blkcipher_setkey(state->arc4, state->sha1_digest,
state->keylen);
sg_init_table(sg_in, 1);
sg_init_table(sg_out, 1);
setup_sg(sg_in, state->sha1_digest, state->keylen);
setup_sg(sg_out, state->session_key, state->keylen);
if (crypto_blkcipher_encrypt(&desc, sg_out, sg_in,
@ -421,6 +425,8 @@ mppe_compress(void *arg, unsigned char *ibuf, unsigned char *obuf,
isize -= 2;
/* Encrypt packet */
sg_init_table(sg_in, 1);
sg_init_table(sg_out, 1);
setup_sg(sg_in, ibuf, isize);
setup_sg(sg_out, obuf, osize);
if (crypto_blkcipher_encrypt(&desc, sg_out, sg_in, isize) != 0) {
@ -608,6 +614,8 @@ mppe_decompress(void *arg, unsigned char *ibuf, int isize, unsigned char *obuf,
* Decrypt the first byte in order to check if it is
* a compressed or uncompressed protocol field.
*/
sg_init_table(sg_in, 1);
sg_init_table(sg_out, 1);
setup_sg(sg_in, ibuf, 1);
setup_sg(sg_out, obuf, 1);
if (crypto_blkcipher_decrypt(&desc, sg_out, sg_in, 1) != 0) {

5
drivers/scsi/iscsi_tcp.c
View File

@ -674,9 +674,8 @@ partial_sg_digest_update(struct hash_desc *desc, struct scatterlist *sg,
{
struct scatterlist temp;
memcpy(&temp, sg, sizeof(struct scatterlist));
temp.offset = offset;
temp.length = length;
sg_init_table(&temp, 1);
sg_set_page(&temp, sg_page(sg), length, offset);
crypto_hash_update(desc, &temp, length);
}

2
fs/ecryptfs/crypto.c
View File

@ -279,6 +279,8 @@ int virt_to_scatterlist(const void *addr, int size, struct scatterlist *sg,
int offset;
int remainder_of_page;
sg_init_table(sg, sg_size);
while (size > 0 && i < sg_size) {
pg = virt_to_page(addr);
offset = offset_in_page(addr);

7
net/ipv4/esp4.c
View File

@ -111,7 +111,9 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
goto unlock;
}
sg_init_table(sg, nfrags);
skb_to_sgvec(skb, sg, esph->enc_data+esp->conf.ivlen-skb->data, clen);
sg_mark_end(sg, skb_to_sgvec(skb, sg, esph->enc_data +
esp->conf.ivlen -
skb->data, clen));
err = crypto_blkcipher_encrypt(&desc, sg, sg, clen);
if (unlikely(sg != &esp->sgbuf[0]))
kfree(sg);
@ -203,7 +205,8 @@ static int esp_input(struct xfrm_state *x, struct sk_buff *skb)
goto out;
}
sg_init_table(sg, nfrags);
skb_to_sgvec(skb, sg, sizeof(*esph) + esp->conf.ivlen, elen);
sg_mark_end(sg, skb_to_sgvec(skb, sg, sizeof(*esph) + esp->conf.ivlen,
elen));
err = crypto_blkcipher_decrypt(&desc, sg, sg, elen);
if (unlikely(sg != &esp->sgbuf[0]))
kfree(sg);

8
net/ipv6/esp6.c
View File

@ -110,7 +110,9 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
goto unlock;
}
sg_init_table(sg, nfrags);
skb_to_sgvec(skb, sg, esph->enc_data+esp->conf.ivlen-skb->data, clen);
sg_mark_end(sg, skb_to_sgvec(skb, sg, esph->enc_data +
esp->conf.ivlen -
skb->data, clen));
err = crypto_blkcipher_encrypt(&desc, sg, sg, clen);
if (unlikely(sg != &esp->sgbuf[0]))
kfree(sg);
@ -207,7 +209,9 @@ static int esp6_input(struct xfrm_state *x, struct sk_buff *skb)
}
}
sg_init_table(sg, nfrags);
skb_to_sgvec(skb, sg, sizeof(*esph) + esp->conf.ivlen, elen);
sg_mark_end(sg, skb_to_sgvec(skb, sg,
sizeof(*esph) + esp->conf.ivlen,
elen));
ret = crypto_blkcipher_decrypt(&desc, sg, sg, elen);
if (unlikely(sg != &esp->sgbuf[0]))
kfree(sg);

66
net/rxrpc/rxkad.c
View File

@ -135,9 +135,8 @@ static void rxkad_prime_packet_security(struct rxrpc_connection *conn)
tmpbuf.x[2] = 0;
tmpbuf.x[3] = htonl(conn->security_ix);
memset(sg, 0, sizeof(sg));
sg_set_buf(&sg[0], &tmpbuf, sizeof(tmpbuf));
sg_set_buf(&sg[1], &tmpbuf, sizeof(tmpbuf));
sg_init_one(&sg[0], &tmpbuf, sizeof(tmpbuf));
sg_init_one(&sg[1], &tmpbuf, sizeof(tmpbuf));
crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
memcpy(&conn->csum_iv, &tmpbuf.x[2], sizeof(conn->csum_iv));
@ -180,9 +179,8 @@ static int rxkad_secure_packet_auth(const struct rxrpc_call *call,
desc.info = iv.x;
desc.flags = 0;
memset(sg, 0, sizeof(sg));
sg_set_buf(&sg[0], &tmpbuf, sizeof(tmpbuf));
sg_set_buf(&sg[1], &tmpbuf, sizeof(tmpbuf));
sg_init_one(&sg[0], &tmpbuf, sizeof(tmpbuf));
sg_init_one(&sg[1], &tmpbuf, sizeof(tmpbuf));
crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
memcpy(sechdr, &tmpbuf, sizeof(tmpbuf));
@ -227,9 +225,8 @@ static int rxkad_secure_packet_encrypt(const struct rxrpc_call *call,
desc.info = iv.x;
desc.flags = 0;
memset(sg, 0, sizeof(sg[0]) * 2);
sg_set_buf(&sg[0], sechdr, sizeof(rxkhdr));
sg_set_buf(&sg[1], &rxkhdr, sizeof(rxkhdr));
sg_init_one(&sg[0], sechdr, sizeof(rxkhdr));
sg_init_one(&sg[1], &rxkhdr, sizeof(rxkhdr));
crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(rxkhdr));
/* we want to encrypt the skbuff in-place */
@ -240,7 +237,7 @@ static int rxkad_secure_packet_encrypt(const struct rxrpc_call *call,
len = data_size + call->conn->size_align - 1;
len &= ~(call->conn->size_align - 1);
skb_to_sgvec(skb, sg, 0, len);
sg_init_table(sg, skb_to_sgvec(skb, sg, 0, len));
crypto_blkcipher_encrypt_iv(&desc, sg, sg, len);
_leave(" = 0");
@ -290,9 +287,8 @@ static int rxkad_secure_packet(const struct rxrpc_call *call,
tmpbuf.x[0] = sp->hdr.callNumber;
tmpbuf.x[1] = x;
memset(&sg, 0, sizeof(sg));
sg_set_buf(&sg[0], &tmpbuf, sizeof(tmpbuf));
sg_set_buf(&sg[1], &tmpbuf, sizeof(tmpbuf));
sg_init_one(&sg[0], &tmpbuf, sizeof(tmpbuf));
sg_init_one(&sg[1], &tmpbuf, sizeof(tmpbuf));
crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
x = ntohl(tmpbuf.x[1]);
@ -332,20 +328,23 @@ static int rxkad_verify_packet_auth(const struct rxrpc_call *call,
struct rxrpc_skb_priv *sp;
struct blkcipher_desc desc;
struct rxrpc_crypt iv;
struct scatterlist sg[2];
struct scatterlist sg[16];
struct sk_buff *trailer;
u32 data_size, buf;
u16 check;
int nsg;
_enter("");
sp = rxrpc_skb(skb);
/* we want to decrypt the skbuff in-place */
if (skb_cow_data(skb, 0, &trailer) < 0)
nsg = skb_cow_data(skb, 0, &trailer);
if (nsg < 0 || nsg > 16)
goto nomem;
skb_to_sgvec(skb, sg, 0, 8);
sg_init_table(sg, nsg);
sg_mark_end(sg, skb_to_sgvec(skb, sg, 0, 8));
/* start the decryption afresh */
memset(&iv, 0, sizeof(iv));
@ -426,7 +425,8 @@ static int rxkad_verify_packet_encrypt(const struct rxrpc_call *call,
goto nomem;
}
skb_to_sgvec(skb, sg, 0, skb->len);
sg_init_table(sg, nsg);
sg_mark_end(sg, skb_to_sgvec(skb, sg, 0, skb->len));
/* decrypt from the session key */
payload = call->conn->key->payload.data;
@ -521,9 +521,8 @@ static int rxkad_verify_packet(const struct rxrpc_call *call,
tmpbuf.x[0] = call->call_id;
tmpbuf.x[1] = x;
memset(&sg, 0, sizeof(sg));
sg_set_buf(&sg[0], &tmpbuf, sizeof(tmpbuf));
sg_set_buf(&sg[1], &tmpbuf, sizeof(tmpbuf));
sg_init_one(&sg[0], &tmpbuf, sizeof(tmpbuf));
sg_init_one(&sg[1], &tmpbuf, sizeof(tmpbuf));
crypto_blkcipher_encrypt_iv(&desc, &sg[0], &sg[1], sizeof(tmpbuf));
x = ntohl(tmpbuf.x[1]);
@ -690,16 +689,20 @@ static void rxkad_calc_response_checksum(struct rxkad_response *response)
static void rxkad_sg_set_buf2(struct scatterlist sg[2],
void *buf, size_t buflen)
{
int nsg = 1;
memset(sg, 0, sizeof(sg));
sg_init_table(sg, 2);
sg_set_buf(&sg[0], buf, buflen);
if (sg[0].offset + buflen > PAGE_SIZE) {
/* the buffer was split over two pages */
sg[0].length = PAGE_SIZE - sg[0].offset;
sg_set_buf(&sg[1], buf + sg[0].length, buflen - sg[0].length);
nsg++;
}
sg_mark_end(sg, nsg);
ASSERTCMP(sg[0].length + sg[1].length, ==, buflen);
}
@ -712,7 +715,7 @@ static void rxkad_encrypt_response(struct rxrpc_connection *conn,
{
struct blkcipher_desc desc;
struct rxrpc_crypt iv;
struct scatterlist ssg[2], dsg[2];
struct scatterlist sg[2];
/* continue encrypting from where we left off */
memcpy(&iv, s2->session_key, sizeof(iv));
@ -720,9 +723,8 @@ static void rxkad_encrypt_response(struct rxrpc_connection *conn,
desc.info = iv.x;
desc.flags = 0;
rxkad_sg_set_buf2(ssg, &resp->encrypted, sizeof(resp->encrypted));
memcpy(dsg, ssg, sizeof(dsg));
crypto_blkcipher_encrypt_iv(&desc, dsg, ssg, sizeof(resp->encrypted));
rxkad_sg_set_buf2(sg, &resp->encrypted, sizeof(resp->encrypted));
crypto_blkcipher_encrypt_iv(&desc, sg, sg, sizeof(resp->encrypted));
}
/*
@ -817,7 +819,7 @@ static int rxkad_decrypt_ticket(struct rxrpc_connection *conn,
{
struct blkcipher_desc desc;
struct rxrpc_crypt iv, key;
struct scatterlist ssg[1], dsg[1];
struct scatterlist sg[1];
struct in_addr addr;
unsigned life;
time_t issue, now;
@ -850,9 +852,8 @@ static int rxkad_decrypt_ticket(struct rxrpc_connection *conn,
desc.info = iv.x;
desc.flags = 0;
sg_init_one(&ssg[0], ticket, ticket_len);
memcpy(dsg, ssg, sizeof(dsg));
crypto_blkcipher_decrypt_iv(&desc, dsg, ssg, ticket_len);
sg_init_one(&sg[0], ticket, ticket_len);
crypto_blkcipher_decrypt_iv(&desc, sg, sg, ticket_len);
p = ticket;
end = p + ticket_len;
@ -961,7 +962,7 @@ static void rxkad_decrypt_response(struct rxrpc_connection *conn,
const struct rxrpc_crypt *session_key)
{
struct blkcipher_desc desc;
struct scatterlist ssg[2], dsg[2];
struct scatterlist sg[2];
struct rxrpc_crypt iv;
_enter(",,%08x%08x",
@ -979,9 +980,8 @@ static void rxkad_decrypt_response(struct rxrpc_connection *conn,
desc.info = iv.x;
desc.flags = 0;
rxkad_sg_set_buf2(ssg, &resp->encrypted, sizeof(resp->encrypted));
memcpy(dsg, ssg, sizeof(dsg));
crypto_blkcipher_decrypt_iv(&desc, dsg, ssg, sizeof(resp->encrypted));
rxkad_sg_set_buf2(sg, &resp->encrypted, sizeof(resp->encrypted));
crypto_blkcipher_decrypt_iv(&desc, sg, sg, sizeof(resp->encrypted));
mutex_unlock(&rxkad_ci_mutex);
_leave("");

3
net/sctp/auth.c
View File

@ -726,8 +726,7 @@ void sctp_auth_calculate_hmac(const struct sctp_association *asoc,
/* set up scatter list */
end = skb_tail_pointer(skb);
sg_init_table(&sg, 1);
sg_set_buf(&sg, auth, end - (unsigned char *)auth);
sg_init_one(&sg, auth, end - (unsigned char *)auth);
desc.tfm = asoc->ep->auth_hmacs[hmac_id];
desc.flags = 0;

6
net/sctp/sm_make_chunk.c
View File

@ -1513,8 +1513,7 @@ static sctp_cookie_param_t *sctp_pack_cookie(const struct sctp_endpoint *ep,
struct hash_desc desc;
/* Sign the message. */
sg_init_table(&sg, 1);
sg_set_buf(&sg, &cookie->c, bodysize);
sg_init_one(&sg, &cookie->c, bodysize);
keylen = SCTP_SECRET_SIZE;
key = (char *)ep->secret_key[ep->current_key];
desc.tfm = sctp_sk(ep->base.sk)->hmac;
@ -1584,8 +1583,7 @@ struct sctp_association *sctp_unpack_cookie(
/* Check the signature. */
keylen = SCTP_SECRET_SIZE;
sg_init_table(&sg, 1);
sg_set_buf(&sg, bear_cookie, bodysize);
sg_init_one(&sg, bear_cookie, bodysize);
key = (char *)ep->secret_key[ep->current_key];
desc.tfm = sctp_sk(ep->base.sk)->hmac;
desc.flags = 0;

34
net/sunrpc/auth_gss/gss_krb5_crypto.c
View File

@ -75,7 +75,7 @@ krb5_encrypt(
memcpy(local_iv, iv, crypto_blkcipher_ivsize(tfm));
memcpy(out, in, length);
sg_set_buf(sg, out, length);
sg_init_one(sg, out, length);
ret = crypto_blkcipher_encrypt_iv(&desc, sg, sg, length);
out:
@ -110,7 +110,7 @@ krb5_decrypt(
memcpy(local_iv,iv, crypto_blkcipher_ivsize(tfm));
memcpy(out, in, length);
sg_set_buf(sg, out, length);
sg_init_one(sg, out, length);
ret = crypto_blkcipher_decrypt_iv(&desc, sg, sg, length);
out:
@ -146,7 +146,7 @@ make_checksum(char *cksumname, char *header, int hdrlen, struct xdr_buf *body,
err = crypto_hash_init(&desc);
if (err)
goto out;
sg_set_buf(sg, header, hdrlen);
sg_init_one(sg, header, hdrlen);
err = crypto_hash_update(&desc, sg, hdrlen);
if (err)
goto out;
@ -188,8 +188,6 @@ encryptor(struct scatterlist *sg, void *data)
/* Worst case is 4 fragments: head, end of page 1, start
* of page 2, tail. Anything more is a bug. */
BUG_ON(desc->fragno > 3);
desc->infrags[desc->fragno] = *sg;
desc->outfrags[desc->fragno] = *sg;
page_pos = desc->pos - outbuf->head[0].iov_len;
if (page_pos >= 0 && page_pos < outbuf->page_len) {
@ -199,7 +197,10 @@ encryptor(struct scatterlist *sg, void *data)
} else {
in_page = sg_page(sg);
}
sg_assign_page(&desc->infrags[desc->fragno], in_page);
sg_set_page(&desc->infrags[desc->fragno], in_page, sg->length,
sg->offset);
sg_set_page(&desc->outfrags[desc->fragno], sg_page(sg), sg->length,
sg->offset);
desc->fragno++;
desc->fraglen += sg->length;
desc->pos += sg->length;
@ -210,10 +211,17 @@ encryptor(struct scatterlist *sg, void *data)
if (thislen == 0)
return 0;
sg_mark_end(desc->infrags, desc->fragno);
sg_mark_end(desc->outfrags, desc->fragno);
ret = crypto_blkcipher_encrypt_iv(&desc->desc, desc->outfrags,
desc->infrags, thislen);
if (ret)
return ret;
sg_init_table(desc->infrags, 4);
sg_init_table(desc->outfrags, 4);
if (fraglen) {
sg_set_page(&desc->outfrags[0], sg_page(sg), fraglen,
sg->offset + sg->length - fraglen);
@ -247,6 +255,9 @@ gss_encrypt_xdr_buf(struct crypto_blkcipher *tfm, struct xdr_buf *buf,
desc.fragno = 0;
desc.fraglen = 0;
sg_init_table(desc.infrags, 4);
sg_init_table(desc.outfrags, 4);
ret = xdr_process_buf(buf, offset, buf->len - offset, encryptor, &desc);
return ret;
}
@ -271,7 +282,8 @@ decryptor(struct scatterlist *sg, void *data)
/* Worst case is 4 fragments: head, end of page 1, start
* of page 2, tail. Anything more is a bug. */
BUG_ON(desc->fragno > 3);
desc->frags[desc->fragno] = *sg;
sg_set_page(&desc->frags[desc->fragno], sg_page(sg), sg->length,
sg->offset);
desc->fragno++;
desc->fraglen += sg->length;
@ -281,10 +293,15 @@ decryptor(struct scatterlist *sg, void *data)
if (thislen == 0)
return 0;
sg_mark_end(desc->frags, desc->fragno);
ret = crypto_blkcipher_decrypt_iv(&desc->desc, desc->frags,
desc->frags, thislen);
if (ret)
return ret;
sg_init_table(desc->frags, 4);
if (fraglen) {
sg_set_page(&desc->frags[0], sg_page(sg), fraglen,
sg->offset + sg->length - fraglen);
@ -312,6 +329,9 @@ gss_decrypt_xdr_buf(struct crypto_blkcipher *tfm, struct xdr_buf *buf,
desc.desc.flags = 0;
desc.fragno = 0;
desc.fraglen = 0;
sg_init_table(desc.frags, 4);
return xdr_process_buf(buf, offset, buf->len - offset, decryptor, &desc);
}

2
net/sunrpc/auth_gss/gss_spkm3_seal.c
View File

@ -173,7 +173,7 @@ make_spkm3_checksum(s32 cksumtype, struct xdr_netobj *key, char *header,
if (err)
goto out;
sg_set_buf(sg, header, hdrlen);
sg_init_one(sg, header, hdrlen);
crypto_hash_update(&desc, sg, sg->length);
xdr_process_buf(body, body_offset, body->len - body_offset,

2
net/sunrpc/xdr.c
View File

@ -1030,6 +1030,8 @@ xdr_process_buf(struct xdr_buf *buf, unsigned int offset, unsigned int len,
unsigned page_len, thislen, page_offset;
struct scatterlist sg[1];
sg_init_table(sg, 1);
if (offset >= buf->head[0].iov_len) {
offset -= buf->head[0].iov_len;
} else {