[PATCH 035/118] drbd: moved crypto transformations and friends from mdev to tconn

From: Philipp Reisner
Date: Thu Aug 25 2011 - 11:31:12 EST

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sed -i \
-e 's/mdev->cram_hmac_tfm/mdev->tconn->cram_hmac_tfm/g' \
-e 's/mdev->integrity_w_tfm/mdev->tconn->integrity_w_tfm/g' \
-e 's/mdev->integrity_r_tfm/mdev->tconn->integrity_r_tfm/g' \
-e 's/mdev->int_dig_out/mdev->tconn->int_dig_out/g' \
-e 's/mdev->int_dig_in/mdev->tconn->int_dig_in/g' \
-e 's/mdev->int_dig_vv/mdev->tconn->int_dig_vv/g' \
*.[ch]

Signed-off-by: Philipp Reisner <philipp.reisner@xxxxxxxxxx>
Signed-off-by: Lars Ellenberg <lars.ellenberg@xxxxxxxxxx>
---
drivers/block/drbd/drbd_int.h | 13 ++++++-----
drivers/block/drbd/drbd_main.c | 42 ++++++++++++++++++------------------
drivers/block/drbd/drbd_nl.c | 24 ++++++++++----------
drivers/block/drbd/drbd_receiver.c | 32 +++++++++++++-------------
4 files changed, 56 insertions(+), 55 deletions(-)

diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 0e9debe..65f0e78 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -982,6 +982,13 @@ struct drbd_tconn { /* is a resource from the config file */
struct drbd_tl_epoch *oldest_tle;
struct list_head out_of_sequence_requests;

+ struct crypto_hash *cram_hmac_tfm;
+ struct crypto_hash *integrity_w_tfm; /* to be used by the worker thread */
+ struct crypto_hash *integrity_r_tfm; /* to be used by the receiver thread */
+ void *int_dig_out;
+ void *int_dig_in;
+ void *int_dig_vv;
+
struct drbd_thread receiver;
struct drbd_thread worker;
struct drbd_thread asender;
@@ -1114,12 +1121,6 @@ struct drbd_conf {
unsigned int al_tr_number;
int al_tr_cycle;
int al_tr_pos; /* position of the next transaction in the journal */
- struct crypto_hash *cram_hmac_tfm;
- struct crypto_hash *integrity_w_tfm; /* to be used by the worker thread */
- struct crypto_hash *integrity_r_tfm; /* to be used by the receiver thread */
- void *int_dig_out;
- void *int_dig_in;
- void *int_dig_vv;
wait_queue_head_t seq_wait;
atomic_t packet_seq;
unsigned int peer_seq;
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index c063cd5..699f639 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -2404,8 +2404,8 @@ static int _drbd_send_ack(struct drbd_conf *mdev, enum drbd_packets cmd,
int drbd_send_ack_dp(struct drbd_conf *mdev, enum drbd_packets cmd,
struct p_data *dp, int data_size)
{
- data_size -= (mdev->tconn->agreed_pro_version >= 87 && mdev->integrity_r_tfm) ?
- crypto_hash_digestsize(mdev->integrity_r_tfm) : 0;
+ data_size -= (mdev->tconn->agreed_pro_version >= 87 && mdev->tconn->integrity_r_tfm) ?
+ crypto_hash_digestsize(mdev->tconn->integrity_r_tfm) : 0;
return _drbd_send_ack(mdev, cmd, dp->sector, cpu_to_be32(data_size),
dp->block_id);
}
@@ -2670,8 +2670,8 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req)
if (!drbd_get_data_sock(mdev))
return 0;

- dgs = (mdev->tconn->agreed_pro_version >= 87 && mdev->integrity_w_tfm) ?
- crypto_hash_digestsize(mdev->integrity_w_tfm) : 0;
+ dgs = (mdev->tconn->agreed_pro_version >= 87 && mdev->tconn->integrity_w_tfm) ?
+ crypto_hash_digestsize(mdev->tconn->integrity_w_tfm) : 0;

if (req->i.size <= DRBD_MAX_SIZE_H80_PACKET) {
p.head.h80.magic = cpu_to_be32(DRBD_MAGIC);
@@ -2701,8 +2701,8 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req)
ok = (sizeof(p) ==
drbd_send(mdev, mdev->tconn->data.socket, &p, sizeof(p), dgs ? MSG_MORE : 0));
if (ok && dgs) {
- dgb = mdev->int_dig_out;
- drbd_csum_bio(mdev, mdev->integrity_w_tfm, req->master_bio, dgb);
+ dgb = mdev->tconn->int_dig_out;
+ drbd_csum_bio(mdev, mdev->tconn->integrity_w_tfm, req->master_bio, dgb);
ok = dgs == drbd_send(mdev, mdev->tconn->data.socket, dgb, dgs, 0);
}
if (ok) {
@@ -2727,8 +2727,8 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req)
/* 64 byte, 512 bit, is the largest digest size
* currently supported in kernel crypto. */
unsigned char digest[64];
- drbd_csum_bio(mdev, mdev->integrity_w_tfm, req->master_bio, digest);
- if (memcmp(mdev->int_dig_out, digest, dgs)) {
+ drbd_csum_bio(mdev, mdev->tconn->integrity_w_tfm, req->master_bio, digest);
+ if (memcmp(mdev->tconn->int_dig_out, digest, dgs)) {
dev_warn(DEV,
"Digest mismatch, buffer modified by upper layers during write: %llus +%u\n",
(unsigned long long)req->i.sector, req->i.size);
@@ -2755,8 +2755,8 @@ int drbd_send_block(struct drbd_conf *mdev, enum drbd_packets cmd,
void *dgb;
int dgs;

- dgs = (mdev->tconn->agreed_pro_version >= 87 && mdev->integrity_w_tfm) ?
- crypto_hash_digestsize(mdev->integrity_w_tfm) : 0;
+ dgs = (mdev->tconn->agreed_pro_version >= 87 && mdev->tconn->integrity_w_tfm) ?
+ crypto_hash_digestsize(mdev->tconn->integrity_w_tfm) : 0;

if (e->i.size <= DRBD_MAX_SIZE_H80_PACKET) {
p.head.h80.magic = cpu_to_be32(DRBD_MAGIC);
@@ -2783,8 +2783,8 @@ int drbd_send_block(struct drbd_conf *mdev, enum drbd_packets cmd,

ok = sizeof(p) == drbd_send(mdev, mdev->tconn->data.socket, &p, sizeof(p), dgs ? MSG_MORE : 0);
if (ok && dgs) {
- dgb = mdev->int_dig_out;
- drbd_csum_ee(mdev, mdev->integrity_w_tfm, e, dgb);
+ dgb = mdev->tconn->int_dig_out;
+ drbd_csum_ee(mdev, mdev->tconn->integrity_w_tfm, e, dgb);
ok = dgs == drbd_send(mdev, mdev->tconn->data.socket, dgb, dgs, 0);
}
if (ok)
@@ -3276,9 +3276,9 @@ static void drbd_delete_device(unsigned int minor)
kfree(mdev->p_uuid);
/* mdev->p_uuid = NULL; */

- kfree(mdev->int_dig_out);
- kfree(mdev->int_dig_in);
- kfree(mdev->int_dig_vv);
+ kfree(mdev->tconn->int_dig_out);
+ kfree(mdev->tconn->int_dig_in);
+ kfree(mdev->tconn->int_dig_vv);

/* cleanup the rest that has been
* allocated from drbd_new_device
@@ -3629,12 +3629,12 @@ void drbd_free_resources(struct drbd_conf *mdev)
mdev->csums_tfm = NULL;
crypto_free_hash(mdev->verify_tfm);
mdev->verify_tfm = NULL;
- crypto_free_hash(mdev->cram_hmac_tfm);
- mdev->cram_hmac_tfm = NULL;
- crypto_free_hash(mdev->integrity_w_tfm);
- mdev->integrity_w_tfm = NULL;
- crypto_free_hash(mdev->integrity_r_tfm);
- mdev->integrity_r_tfm = NULL;
+ crypto_free_hash(mdev->tconn->cram_hmac_tfm);
+ mdev->tconn->cram_hmac_tfm = NULL;
+ crypto_free_hash(mdev->tconn->integrity_w_tfm);
+ mdev->tconn->integrity_w_tfm = NULL;
+ crypto_free_hash(mdev->tconn->integrity_r_tfm);
+ mdev->tconn->integrity_r_tfm = NULL;

drbd_free_sock(mdev);

diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 4eaf81a..0836808 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -1532,21 +1532,21 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
mdev->send_cnt = 0;
mdev->recv_cnt = 0;

- crypto_free_hash(mdev->cram_hmac_tfm);
- mdev->cram_hmac_tfm = tfm;
+ crypto_free_hash(mdev->tconn->cram_hmac_tfm);
+ mdev->tconn->cram_hmac_tfm = tfm;

- crypto_free_hash(mdev->integrity_w_tfm);
- mdev->integrity_w_tfm = integrity_w_tfm;
+ crypto_free_hash(mdev->tconn->integrity_w_tfm);
+ mdev->tconn->integrity_w_tfm = integrity_w_tfm;

- crypto_free_hash(mdev->integrity_r_tfm);
- mdev->integrity_r_tfm = integrity_r_tfm;
+ crypto_free_hash(mdev->tconn->integrity_r_tfm);
+ mdev->tconn->integrity_r_tfm = integrity_r_tfm;

- kfree(mdev->int_dig_out);
- kfree(mdev->int_dig_in);
- kfree(mdev->int_dig_vv);
- mdev->int_dig_out=int_dig_out;
- mdev->int_dig_in=int_dig_in;
- mdev->int_dig_vv=int_dig_vv;
+ kfree(mdev->tconn->int_dig_out);
+ kfree(mdev->tconn->int_dig_in);
+ kfree(mdev->tconn->int_dig_vv);
+ mdev->tconn->int_dig_out=int_dig_out;
+ mdev->tconn->int_dig_in=int_dig_in;
+ mdev->tconn->int_dig_vv=int_dig_vv;
retcode = _drbd_set_state(_NS(mdev, conn, C_UNCONNECTED), CS_VERBOSE, NULL);
spin_unlock_irq(&mdev->tconn->req_lock);

diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index af968a0b..4b37010 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -880,7 +880,7 @@ retry:
if (h <= 0)
return h;

- if (mdev->cram_hmac_tfm) {
+ if (mdev->tconn->cram_hmac_tfm) {
/* drbd_request_state(mdev, NS(conn, WFAuth)); */
switch (drbd_do_auth(mdev)) {
case -1:
@@ -1240,12 +1240,12 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __
struct drbd_epoch_entry *e;
struct page *page;
int dgs, ds, rr;
- void *dig_in = mdev->int_dig_in;
- void *dig_vv = mdev->int_dig_vv;
+ void *dig_in = mdev->tconn->int_dig_in;
+ void *dig_vv = mdev->tconn->int_dig_vv;
unsigned long *data;

- dgs = (mdev->tconn->agreed_pro_version >= 87 && mdev->integrity_r_tfm) ?
- crypto_hash_digestsize(mdev->integrity_r_tfm) : 0;
+ dgs = (mdev->tconn->agreed_pro_version >= 87 && mdev->tconn->integrity_r_tfm) ?
+ crypto_hash_digestsize(mdev->tconn->integrity_r_tfm) : 0;

if (dgs) {
rr = drbd_recv(mdev, dig_in, dgs);
@@ -1306,7 +1306,7 @@ read_in_block(struct drbd_conf *mdev, u64 id, sector_t sector, int data_size) __
}

if (dgs) {
- drbd_csum_ee(mdev, mdev->integrity_r_tfm, e, dig_vv);
+ drbd_csum_ee(mdev, mdev->tconn->integrity_r_tfm, e, dig_vv);
if (memcmp(dig_in, dig_vv, dgs)) {
dev_err(DEV, "Digest integrity check FAILED: %llus +%u\n",
(unsigned long long)sector, data_size);
@@ -1358,11 +1358,11 @@ static int recv_dless_read(struct drbd_conf *mdev, struct drbd_request *req,
struct bio_vec *bvec;
struct bio *bio;
int dgs, rr, i, expect;
- void *dig_in = mdev->int_dig_in;
- void *dig_vv = mdev->int_dig_vv;
+ void *dig_in = mdev->tconn->int_dig_in;
+ void *dig_vv = mdev->tconn->int_dig_vv;

- dgs = (mdev->tconn->agreed_pro_version >= 87 && mdev->integrity_r_tfm) ?
- crypto_hash_digestsize(mdev->integrity_r_tfm) : 0;
+ dgs = (mdev->tconn->agreed_pro_version >= 87 && mdev->tconn->integrity_r_tfm) ?
+ crypto_hash_digestsize(mdev->tconn->integrity_r_tfm) : 0;

if (dgs) {
rr = drbd_recv(mdev, dig_in, dgs);
@@ -1401,7 +1401,7 @@ static int recv_dless_read(struct drbd_conf *mdev, struct drbd_request *req,
}

if (dgs) {
- drbd_csum_bio(mdev, mdev->integrity_r_tfm, bio, dig_vv);
+ drbd_csum_bio(mdev, mdev->tconn->integrity_r_tfm, bio, dig_vv);
if (memcmp(dig_in, dig_vv, dgs)) {
dev_err(DEV, "Digest integrity check FAILED. Broken NICs?\n");
return 0;
@@ -3841,8 +3841,8 @@ static void drbd_disconnect(struct drbd_conf *mdev)
if (os.conn == C_DISCONNECTING) {
wait_event(mdev->tconn->net_cnt_wait, atomic_read(&mdev->tconn->net_cnt) == 0);

- crypto_free_hash(mdev->cram_hmac_tfm);
- mdev->cram_hmac_tfm = NULL;
+ crypto_free_hash(mdev->tconn->cram_hmac_tfm);
+ mdev->tconn->cram_hmac_tfm = NULL;

kfree(mdev->tconn->net_conf);
mdev->tconn->net_conf = NULL;
@@ -4012,10 +4012,10 @@ static int drbd_do_auth(struct drbd_conf *mdev)
unsigned int length;
int rv;

- desc.tfm = mdev->cram_hmac_tfm;
+ desc.tfm = mdev->tconn->cram_hmac_tfm;
desc.flags = 0;

- rv = crypto_hash_setkey(mdev->cram_hmac_tfm,
+ rv = crypto_hash_setkey(mdev->tconn->cram_hmac_tfm,
(u8 *)mdev->tconn->net_conf->shared_secret, key_len);
if (rv) {
dev_err(DEV, "crypto_hash_setkey() failed with %d\n", rv);
@@ -4062,7 +4062,7 @@ static int drbd_do_auth(struct drbd_conf *mdev)
goto fail;
}

- resp_size = crypto_hash_digestsize(mdev->cram_hmac_tfm);
+ resp_size = crypto_hash_digestsize(mdev->tconn->cram_hmac_tfm);
response = kmalloc(resp_size, GFP_NOIO);
if (response == NULL) {
dev_err(DEV, "kmalloc of response failed\n");
--
1.7.4.1

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Next message: Philipp Reisner: "[PATCH 039/118] drbd: Use new header layout, and send volume IOs"
Previous message: Philipp Reisner: "[PATCH 040/118] drbd: Implemented receiving of new style packets on meta socket"
In reply to: Philipp Reisner: "[PATCH 040/118] drbd: Implemented receiving of new style packets on meta socket"
Next in thread: Philipp Reisner: "[PATCH 039/118] drbd: Use new header layout, and send volume IOs"
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