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afs: Trace protocol errors

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Trace protocol errors detected in afs.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2018-04-06 14:17:25 +01:00
parent 63a4681ff3
commit 5f702c8e12
7 changed files with 79 additions and 46 deletions
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68
fs/afs/fsclient.c
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@@ -126,7 +126,8 @@ void afs_update_inode_from_status(struct afs_vnode *vnode,
/*
* decode an AFSFetchStatus block
*/
static int xdr_decode_AFSFetchStatus(const __be32 **_bp,
static int xdr_decode_AFSFetchStatus(struct afs_call *call,
const __be32 **_bp,
struct afs_file_status *status,
struct afs_vnode *vnode,
const afs_dataversion_t *expected_version,
@@ -167,6 +168,7 @@ static int xdr_decode_AFSFetchStatus(const __be32 **_bp,
case AFS_FTYPE_INVALID:
if (abort_code != 0) {
status->abort_code = abort_code;
ret = 0;
goto out;
}
/* Fall through */
@@ -229,7 +231,7 @@ out:
bad:
xdr_dump_bad(*_bp);
ret = -EBADMSG;
ret = afs_protocol_error(call, -EBADMSG);
goto out;
}
@@ -372,9 +374,9 @@ static int afs_deliver_fs_fetch_status_vnode(struct afs_call *call)
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
if (xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode,
if (xdr_decode_AFSFetchStatus(call, &bp, &vnode->status, vnode,
&call->expected_version, NULL) < 0)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
xdr_decode_AFSCallBack(call, vnode, &bp);
if (call->reply[1])
xdr_decode_AFSVolSync(&bp, call->reply[1]);
@@ -553,9 +555,9 @@ static int afs_deliver_fs_fetch_data(struct afs_call *call)
return ret;
bp = call->buffer;
if (xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode,
if (xdr_decode_AFSFetchStatus(call, &bp, &vnode->status, vnode,
&vnode->status.data_version, req) < 0)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
xdr_decode_AFSCallBack(call, vnode, &bp);
if (call->reply[1])
xdr_decode_AFSVolSync(&bp, call->reply[1]);
@@ -706,10 +708,10 @@ static int afs_deliver_fs_create_vnode(struct afs_call *call)
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
xdr_decode_AFSFid(&bp, call->reply[1]);
if (xdr_decode_AFSFetchStatus(&bp, call->reply[2], NULL, NULL, NULL) < 0 ||
xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode,
if (xdr_decode_AFSFetchStatus(call, &bp, call->reply[2], NULL, NULL, NULL) < 0 ||
xdr_decode_AFSFetchStatus(call, &bp, &vnode->status, vnode,
&call->expected_version, NULL) < 0)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
xdr_decode_AFSCallBack_raw(&bp, call->reply[3]);
/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
@@ -812,9 +814,9 @@ static int afs_deliver_fs_remove(struct afs_call *call)
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
if (xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode,
if (xdr_decode_AFSFetchStatus(call, &bp, &vnode->status, vnode,
&call->expected_version, NULL) < 0)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
_leave(" = 0 [done]");
@@ -902,10 +904,10 @@ static int afs_deliver_fs_link(struct afs_call *call)
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
if (xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode, NULL, NULL) < 0 ||
xdr_decode_AFSFetchStatus(&bp, &dvnode->status, dvnode,
if (xdr_decode_AFSFetchStatus(call, &bp, &vnode->status, vnode, NULL, NULL) < 0 ||
xdr_decode_AFSFetchStatus(call, &bp, &dvnode->status, dvnode,
&call->expected_version, NULL) < 0)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
_leave(" = 0 [done]");
@@ -989,10 +991,10 @@ static int afs_deliver_fs_symlink(struct afs_call *call)
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
xdr_decode_AFSFid(&bp, call->reply[1]);
if (xdr_decode_AFSFetchStatus(&bp, call->reply[2], NULL, NULL, NULL) ||
xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode,
if (xdr_decode_AFSFetchStatus(call, &bp, call->reply[2], NULL, NULL, NULL) ||
xdr_decode_AFSFetchStatus(call, &bp, &vnode->status, vnode,
&call->expected_version, NULL) < 0)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
_leave(" = 0 [done]");
@@ -1095,13 +1097,13 @@ static int afs_deliver_fs_rename(struct afs_call *call)
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
if (xdr_decode_AFSFetchStatus(&bp, &orig_dvnode->status, orig_dvnode,
if (xdr_decode_AFSFetchStatus(call, &bp, &orig_dvnode->status, orig_dvnode,
&call->expected_version, NULL) < 0)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
if (new_dvnode != orig_dvnode &&
xdr_decode_AFSFetchStatus(&bp, &new_dvnode->status, new_dvnode,
xdr_decode_AFSFetchStatus(call, &bp, &new_dvnode->status, new_dvnode,
&call->expected_version_2, NULL) < 0)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
_leave(" = 0 [done]");
@@ -1204,9 +1206,9 @@ static int afs_deliver_fs_store_data(struct afs_call *call)
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
if (xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode,
if (xdr_decode_AFSFetchStatus(call, &bp, &vnode->status, vnode,
&call->expected_version, NULL) < 0)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
afs_pages_written_back(vnode, call);
@@ -1380,9 +1382,9 @@ static int afs_deliver_fs_store_status(struct afs_call *call)
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
if (xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode,
if (xdr_decode_AFSFetchStatus(call, &bp, &vnode->status, vnode,
&call->expected_version, NULL) < 0)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
_leave(" = 0 [done]");
@@ -1585,7 +1587,7 @@ static int afs_deliver_fs_get_volume_status(struct afs_call *call)
call->count = ntohl(call->tmp);
_debug("volname length: %u", call->count);
if (call->count >= AFSNAMEMAX)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
call->offset = 0;
call->unmarshall++;
@@ -1632,7 +1634,7 @@ static int afs_deliver_fs_get_volume_status(struct afs_call *call)
call->count = ntohl(call->tmp);
_debug("offline msg length: %u", call->count);
if (call->count >= AFSNAMEMAX)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
call->offset = 0;
call->unmarshall++;
@@ -1679,7 +1681,7 @@ static int afs_deliver_fs_get_volume_status(struct afs_call *call)
call->count = ntohl(call->tmp);
_debug("motd length: %u", call->count);
if (call->count >= AFSNAMEMAX)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
call->offset = 0;
call->unmarshall++;
@@ -2082,7 +2084,7 @@ static int afs_deliver_fs_fetch_status(struct afs_call *call)
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
xdr_decode_AFSFetchStatus(&bp, status, vnode,
xdr_decode_AFSFetchStatus(call, &bp, status, vnode,
&call->expected_version, NULL);
callback[call->count].version = ntohl(bp[0]);
callback[call->count].expiry = ntohl(bp[1]);
@@ -2179,7 +2181,7 @@ static int afs_deliver_fs_inline_bulk_status(struct afs_call *call)
tmp = ntohl(call->tmp);
_debug("status count: %u/%u", tmp, call->count2);
if (tmp != call->count2)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
call->count = 0;
call->unmarshall++;
@@ -2194,10 +2196,10 @@ static int afs_deliver_fs_inline_bulk_status(struct afs_call *call)
bp = call->buffer;
statuses = call->reply[1];
if (xdr_decode_AFSFetchStatus(&bp, &statuses[call->count],
if (xdr_decode_AFSFetchStatus(call, &bp, &statuses[call->count],
call->count == 0 ? vnode : NULL,
NULL, NULL) < 0)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
call->count++;
if (call->count < call->count2)
@@ -2217,7 +2219,7 @@ static int afs_deliver_fs_inline_bulk_status(struct afs_call *call)
tmp = ntohl(call->tmp);
_debug("CB count: %u", tmp);
if (tmp != call->count2)
return -EBADMSG;
return afs_protocol_error(call, -EBADMSG);
call->count = 0;
call->unmarshall++;
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