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| author | Mike Christie <michaelc@cs.wisc.edu> | 2005-11-30 08:27:19 (GMT) |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.(none)> | 2005-12-14 01:12:03 (GMT) |
| commit | 8a47cd340b4a299087f926ff2780d1eb08513f04 (patch) | |
| tree | fab368465f0e187c0f3708385a4618eb115c76e0 | |
| parent | 4d841d6bd94d55642f8dbb11d6b672b3b50ff82e (diff) | |
| download | linux-8a47cd340b4a299087f926ff2780d1eb08513f04.tar.xz | |
[SCSI] iscsi: check header digests for mgmt tasks
From Wang Zhenyu:
check header digest for cmd and mgmt tasks
Signed-off-by: Wang Zhenyu <zhenyu.z.wang@intel.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Alex Aizman <itn780@yahoo.com>
Signed-off-by: Dmitry Yusupov <dmitry_yus@yahoo.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| -rw-r--r-- | drivers/scsi/iscsi_tcp.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index feb8731..2d12355 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -581,6 +581,12 @@ iscsi_hdr_recv(struct iscsi_conn *conn) crypto_digest_digest(conn->rx_tfm, &sg, 1, (u8 *)&cdgst); rdgst = *(uint32_t*)((char*)hdr + sizeof(struct iscsi_hdr) + conn->in.ahslen); + if (cdgst != rdgst) { + printk(KERN_ERR "iscsi_tcp: itt %x: hdrdgst error " + "recv 0x%x calc 0x%x\n", conn->in.itt, rdgst, + cdgst); + return ISCSI_ERR_HDR_DGST; + } } /* save opcode for later */ @@ -610,13 +616,6 @@ iscsi_hdr_recv(struct iscsi_conn *conn) conn->in.ahslen, conn->in.datalen); if (conn->in.itt < session->cmds_max) { - if (conn->hdrdgst_en && cdgst != rdgst) { - printk(KERN_ERR "iscsi_tcp: itt %x: hdrdgst error " - "recv 0x%x calc 0x%x\n", conn->in.itt, rdgst, - cdgst); - return ISCSI_ERR_HDR_DGST; - } - ctask = (struct iscsi_cmd_task *)session->cmds[conn->in.itt]; if (!ctask->sc) { @@ -1128,8 +1127,7 @@ more: */ rc = iscsi_hdr_recv(conn); if (!rc && conn->in.datalen) { - if (conn->datadgst_en && - conn->in.opcode != ISCSI_OP_LOGIN_RSP) { + if (conn->datadgst_en) { BUG_ON(!conn->data_rx_tfm); crypto_digest_init(conn->data_rx_tfm); } @@ -1179,8 +1177,7 @@ more: } conn->in.copy -= conn->in.padding; conn->in.offset += conn->in.padding; - if (conn->datadgst_en && - conn->in.opcode != ISCSI_OP_LOGIN_RSP) { + if (conn->datadgst_en) { if (conn->in.padding) { debug_tcp("padding -> %d\n", conn->in.padding); memset(pad, 0, conn->in.padding); @@ -2875,8 +2872,11 @@ iscsi_conn_stop(iscsi_connh_t connh, int flag) * in hdr_extract() and will be re-negotiated at * set_param() time. */ - if (flag == STOP_CONN_RECOVER) + if (flag == STOP_CONN_RECOVER) { conn->hdr_size = sizeof(struct iscsi_hdr); + conn->hdrdgst_en = 0; + conn->datadgst_en = 0; + } } up(&conn->xmitsema); } |