afs: Better tracing of protocol errors
Include the site of detection of AFS protocol errors in trace lines to better be able to determine what went wrong. Signed-off-by: David Howells <dhowells@redhat.com>hifive-unleashed-5.1
David Howells
parent
9ea9ce0427
commit
160cb9574b
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@ -189,7 +189,8 @@ static int afs_deliver_cb_callback(struct afs_call *call)
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call->count = ntohl(call->tmp);
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_debug("FID count: %u", call->count);
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if (call->count > AFSCBMAX)
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_cb_fid_count);
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call->buffer = kmalloc(array3_size(call->count, 3, 4),
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GFP_KERNEL);
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@ -234,7 +235,8 @@ static int afs_deliver_cb_callback(struct afs_call *call)
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call->count2 = ntohl(call->tmp);
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_debug("CB count: %u", call->count2);
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if (call->count2 != call->count && call->count2 != 0)
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_cb_count);
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call->offset = 0;
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call->unmarshall++;
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@ -233,7 +233,7 @@ static int xdr_decode_AFSFetchStatus(struct afs_call *call,
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bad:
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xdr_dump_bad(*_bp);
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG, afs_eproto_bad_status);
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}
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/*
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@ -399,9 +399,10 @@ static int afs_deliver_fs_fetch_status_vnode(struct afs_call *call)
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/* unmarshall the reply once we've received all of it */
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bp = call->buffer;
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if (afs_decode_status(call, &bp, &vnode->status, vnode,
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&call->expected_version, NULL) < 0)
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return afs_protocol_error(call, -EBADMSG);
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ret = afs_decode_status(call, &bp, &vnode->status, vnode,
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&call->expected_version, NULL);
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if (ret < 0)
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return ret;
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xdr_decode_AFSCallBack(call, vnode, &bp);
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if (call->reply[1])
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xdr_decode_AFSVolSync(&bp, call->reply[1]);
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@ -580,9 +581,10 @@ static int afs_deliver_fs_fetch_data(struct afs_call *call)
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return ret;
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bp = call->buffer;
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if (afs_decode_status(call, &bp, &vnode->status, vnode,
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&vnode->status.data_version, req) < 0)
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return afs_protocol_error(call, -EBADMSG);
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ret = afs_decode_status(call, &bp, &vnode->status, vnode,
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&vnode->status.data_version, req);
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if (ret < 0)
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return ret;
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xdr_decode_AFSCallBack(call, vnode, &bp);
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if (call->reply[1])
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xdr_decode_AFSVolSync(&bp, call->reply[1]);
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@ -733,10 +735,13 @@ static int afs_deliver_fs_create_vnode(struct afs_call *call)
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/* unmarshall the reply once we've received all of it */
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bp = call->buffer;
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xdr_decode_AFSFid(&bp, call->reply[1]);
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if (afs_decode_status(call, &bp, call->reply[2], NULL, NULL, NULL) < 0 ||
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afs_decode_status(call, &bp, &vnode->status, vnode,
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&call->expected_version, NULL) < 0)
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return afs_protocol_error(call, -EBADMSG);
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ret = afs_decode_status(call, &bp, call->reply[2], NULL, NULL, NULL);
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if (ret < 0)
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return ret;
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ret = afs_decode_status(call, &bp, &vnode->status, vnode,
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&call->expected_version, NULL);
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if (ret < 0)
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return ret;
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xdr_decode_AFSCallBack_raw(&bp, call->reply[3]);
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/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
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@ -839,9 +844,10 @@ static int afs_deliver_fs_remove(struct afs_call *call)
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/* unmarshall the reply once we've received all of it */
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bp = call->buffer;
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if (afs_decode_status(call, &bp, &vnode->status, vnode,
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&call->expected_version, NULL) < 0)
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return afs_protocol_error(call, -EBADMSG);
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ret = afs_decode_status(call, &bp, &vnode->status, vnode,
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&call->expected_version, NULL);
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if (ret < 0)
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return ret;
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/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
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_leave(" = 0 [done]");
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@ -929,10 +935,13 @@ static int afs_deliver_fs_link(struct afs_call *call)
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/* unmarshall the reply once we've received all of it */
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bp = call->buffer;
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if (afs_decode_status(call, &bp, &vnode->status, vnode, NULL, NULL) < 0 ||
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afs_decode_status(call, &bp, &dvnode->status, dvnode,
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&call->expected_version, NULL) < 0)
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return afs_protocol_error(call, -EBADMSG);
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ret = afs_decode_status(call, &bp, &vnode->status, vnode, NULL, NULL);
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if (ret < 0)
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return ret;
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ret = afs_decode_status(call, &bp, &dvnode->status, dvnode,
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&call->expected_version, NULL);
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if (ret < 0)
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return ret;
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/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
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_leave(" = 0 [done]");
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@ -1016,10 +1025,13 @@ static int afs_deliver_fs_symlink(struct afs_call *call)
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/* unmarshall the reply once we've received all of it */
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bp = call->buffer;
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xdr_decode_AFSFid(&bp, call->reply[1]);
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if (afs_decode_status(call, &bp, call->reply[2], NULL, NULL, NULL) ||
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afs_decode_status(call, &bp, &vnode->status, vnode,
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&call->expected_version, NULL) < 0)
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return afs_protocol_error(call, -EBADMSG);
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ret = afs_decode_status(call, &bp, call->reply[2], NULL, NULL, NULL);
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if (ret < 0)
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return ret;
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ret = afs_decode_status(call, &bp, &vnode->status, vnode,
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&call->expected_version, NULL);
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if (ret < 0)
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return ret;
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/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
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_leave(" = 0 [done]");
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@ -1122,13 +1134,16 @@ static int afs_deliver_fs_rename(struct afs_call *call)
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/* unmarshall the reply once we've received all of it */
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bp = call->buffer;
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if (afs_decode_status(call, &bp, &orig_dvnode->status, orig_dvnode,
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&call->expected_version, NULL) < 0)
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return afs_protocol_error(call, -EBADMSG);
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if (new_dvnode != orig_dvnode &&
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afs_decode_status(call, &bp, &new_dvnode->status, new_dvnode,
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&call->expected_version_2, NULL) < 0)
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return afs_protocol_error(call, -EBADMSG);
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ret = afs_decode_status(call, &bp, &orig_dvnode->status, orig_dvnode,
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&call->expected_version, NULL);
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if (ret < 0)
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return ret;
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if (new_dvnode != orig_dvnode) {
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ret = afs_decode_status(call, &bp, &new_dvnode->status, new_dvnode,
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&call->expected_version_2, NULL);
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if (ret < 0)
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return ret;
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}
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/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
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_leave(" = 0 [done]");
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@ -1231,9 +1246,10 @@ static int afs_deliver_fs_store_data(struct afs_call *call)
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/* unmarshall the reply once we've received all of it */
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bp = call->buffer;
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if (afs_decode_status(call, &bp, &vnode->status, vnode,
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&call->expected_version, NULL) < 0)
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return afs_protocol_error(call, -EBADMSG);
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ret = afs_decode_status(call, &bp, &vnode->status, vnode,
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&call->expected_version, NULL);
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if (ret < 0)
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return ret;
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/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
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afs_pages_written_back(vnode, call);
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@ -1407,9 +1423,10 @@ static int afs_deliver_fs_store_status(struct afs_call *call)
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/* unmarshall the reply once we've received all of it */
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bp = call->buffer;
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if (afs_decode_status(call, &bp, &vnode->status, vnode,
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&call->expected_version, NULL) < 0)
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return afs_protocol_error(call, -EBADMSG);
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ret = afs_decode_status(call, &bp, &vnode->status, vnode,
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&call->expected_version, NULL);
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if (ret < 0)
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return ret;
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/* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
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_leave(" = 0 [done]");
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@ -1612,7 +1629,8 @@ static int afs_deliver_fs_get_volume_status(struct afs_call *call)
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call->count = ntohl(call->tmp);
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_debug("volname length: %u", call->count);
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if (call->count >= AFSNAMEMAX)
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_volname_len);
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call->offset = 0;
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call->unmarshall++;
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@ -1659,7 +1677,8 @@ static int afs_deliver_fs_get_volume_status(struct afs_call *call)
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call->count = ntohl(call->tmp);
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_debug("offline msg length: %u", call->count);
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if (call->count >= AFSNAMEMAX)
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_offline_msg_len);
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call->offset = 0;
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call->unmarshall++;
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@ -1706,7 +1725,8 @@ static int afs_deliver_fs_get_volume_status(struct afs_call *call)
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call->count = ntohl(call->tmp);
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_debug("motd length: %u", call->count);
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if (call->count >= AFSNAMEMAX)
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_motd_len);
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call->offset = 0;
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call->unmarshall++;
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@ -2109,8 +2129,10 @@ static int afs_deliver_fs_fetch_status(struct afs_call *call)
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/* unmarshall the reply once we've received all of it */
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bp = call->buffer;
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afs_decode_status(call, &bp, status, vnode,
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&call->expected_version, NULL);
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ret = afs_decode_status(call, &bp, status, vnode,
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&call->expected_version, NULL);
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if (ret < 0)
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return ret;
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callback[call->count].version = ntohl(bp[0]);
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callback[call->count].expiry = ntohl(bp[1]);
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callback[call->count].type = ntohl(bp[2]);
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@ -2206,7 +2228,8 @@ static int afs_deliver_fs_inline_bulk_status(struct afs_call *call)
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tmp = ntohl(call->tmp);
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_debug("status count: %u/%u", tmp, call->count2);
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if (tmp != call->count2)
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_ibulkst_count);
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call->count = 0;
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call->unmarshall++;
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@ -2221,10 +2244,11 @@ static int afs_deliver_fs_inline_bulk_status(struct afs_call *call)
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bp = call->buffer;
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statuses = call->reply[1];
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if (afs_decode_status(call, &bp, &statuses[call->count],
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call->count == 0 ? vnode : NULL,
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NULL, NULL) < 0)
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return afs_protocol_error(call, -EBADMSG);
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ret = afs_decode_status(call, &bp, &statuses[call->count],
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call->count == 0 ? vnode : NULL,
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NULL, NULL);
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if (ret < 0)
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return ret;
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call->count++;
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if (call->count < call->count2)
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@ -2244,7 +2268,8 @@ static int afs_deliver_fs_inline_bulk_status(struct afs_call *call)
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tmp = ntohl(call->tmp);
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_debug("CB count: %u", tmp);
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if (tmp != call->count2)
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_ibulkst_cb_count);
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call->count = 0;
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call->unmarshall++;
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more_cbs:
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@ -82,7 +82,7 @@ static int afs_inode_init_from_status(struct afs_vnode *vnode, struct key *key)
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default:
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printk("kAFS: AFS vnode with undefined type\n");
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read_sequnlock_excl(&vnode->cb_lock);
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return afs_protocol_error(NULL, -EBADMSG);
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return afs_protocol_error(NULL, -EBADMSG, afs_eproto_file_type);
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}
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inode->i_blocks = 0;
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@ -931,7 +931,7 @@ extern void afs_flat_call_destructor(struct afs_call *);
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extern void afs_send_empty_reply(struct afs_call *);
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extern void afs_send_simple_reply(struct afs_call *, const void *, size_t);
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extern int afs_extract_data(struct afs_call *, void *, size_t, bool);
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extern int afs_protocol_error(struct afs_call *, int);
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extern int afs_protocol_error(struct afs_call *, int, enum afs_eproto_cause);
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static inline int afs_transfer_reply(struct afs_call *call)
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{
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@ -939,8 +939,9 @@ int afs_extract_data(struct afs_call *call, void *buf, size_t count,
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/*
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* Log protocol error production.
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*/
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noinline int afs_protocol_error(struct afs_call *call, int error)
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noinline int afs_protocol_error(struct afs_call *call, int error,
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enum afs_eproto_cause cause)
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{
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trace_afs_protocol_error(call, error, __builtin_return_address(0));
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trace_afs_protocol_error(call, error, cause);
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return error;
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}
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@ -451,7 +451,8 @@ again:
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call->count2 = ntohl(*bp); /* Type or next count */
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if (call->count > YFS_MAXENDPOINTS)
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_yvl_fsendpt_num);
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alist = afs_alloc_addrlist(call->count, FS_SERVICE, AFS_FS_PORT);
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if (!alist)
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@ -475,7 +476,8 @@ again:
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size = sizeof(__be32) * (1 + 4 + 1);
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break;
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default:
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_yvl_fsendpt_type);
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}
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size += sizeof(__be32);
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@ -488,18 +490,21 @@ again:
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switch (call->count2) {
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case YFS_ENDPOINT_IPV4:
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if (ntohl(bp[0]) != sizeof(__be32) * 2)
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_yvl_fsendpt4_len);
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afs_merge_fs_addr4(alist, bp[1], ntohl(bp[2]));
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bp += 3;
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break;
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case YFS_ENDPOINT_IPV6:
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if (ntohl(bp[0]) != sizeof(__be32) * 5)
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_yvl_fsendpt6_len);
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afs_merge_fs_addr6(alist, bp + 1, ntohl(bp[5]));
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bp += 6;
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break;
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default:
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_yvl_fsendpt_type);
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}
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/* Got either the type of the next entry or the count of
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@ -518,7 +523,8 @@ again:
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if (!call->count)
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goto end;
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if (call->count > YFS_MAXENDPOINTS)
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_yvl_vlendpt_type);
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call->unmarshall = 3;
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@ -546,7 +552,8 @@ again:
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size = sizeof(__be32) * (1 + 4 + 1);
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break;
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default:
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_yvl_vlendpt_type);
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}
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if (call->count > 1)
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@ -559,16 +566,19 @@ again:
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switch (call->count2) {
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case YFS_ENDPOINT_IPV4:
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if (ntohl(bp[0]) != sizeof(__be32) * 2)
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_yvl_vlendpt4_len);
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bp += 3;
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break;
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case YFS_ENDPOINT_IPV6:
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if (ntohl(bp[0]) != sizeof(__be32) * 5)
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_yvl_vlendpt6_len);
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bp += 6;
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break;
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default:
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return afs_protocol_error(call, -EBADMSG);
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return afs_protocol_error(call, -EBADMSG,
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afs_eproto_yvl_vlendpt_type);
|
||||
}
|
||||
|
||||
/* Got either the type of the next entry or the count of
|
||||
|
|
|
|||
|
|
@ -84,6 +84,25 @@ enum afs_edit_dir_reason {
|
|||
afs_edit_dir_for_unlink,
|
||||
};
|
||||
|
||||
enum afs_eproto_cause {
|
||||
afs_eproto_bad_status,
|
||||
afs_eproto_cb_count,
|
||||
afs_eproto_cb_fid_count,
|
||||
afs_eproto_file_type,
|
||||
afs_eproto_ibulkst_cb_count,
|
||||
afs_eproto_ibulkst_count,
|
||||
afs_eproto_motd_len,
|
||||
afs_eproto_offline_msg_len,
|
||||
afs_eproto_volname_len,
|
||||
afs_eproto_yvl_fsendpt4_len,
|
||||
afs_eproto_yvl_fsendpt6_len,
|
||||
afs_eproto_yvl_fsendpt_num,
|
||||
afs_eproto_yvl_fsendpt_type,
|
||||
afs_eproto_yvl_vlendpt4_len,
|
||||
afs_eproto_yvl_vlendpt6_len,
|
||||
afs_eproto_yvl_vlendpt_type,
|
||||
};
|
||||
|
||||
#endif /* end __AFS_DECLARE_TRACE_ENUMS_ONCE_ONLY */
|
||||
|
||||
/*
|
||||
|
|
@ -146,6 +165,24 @@ enum afs_edit_dir_reason {
|
|||
EM(afs_edit_dir_for_symlink, "Symlnk") \
|
||||
E_(afs_edit_dir_for_unlink, "Unlink")
|
||||
|
||||
#define afs_eproto_causes \
|
||||
EM(afs_eproto_bad_status, "BadStatus") \
|
||||
EM(afs_eproto_cb_count, "CbCount") \
|
||||
EM(afs_eproto_cb_fid_count, "CbFidCount") \
|
||||
EM(afs_eproto_file_type, "FileTYpe") \
|
||||
EM(afs_eproto_ibulkst_cb_count, "IBS.CbCount") \
|
||||
EM(afs_eproto_ibulkst_count, "IBS.FidCount") \
|
||||
EM(afs_eproto_motd_len, "MotdLen") \
|
||||
EM(afs_eproto_offline_msg_len, "OfflineMsgLen") \
|
||||
EM(afs_eproto_volname_len, "VolNameLen") \
|
||||
EM(afs_eproto_yvl_fsendpt4_len, "YVL.FsEnd4Len") \
|
||||
EM(afs_eproto_yvl_fsendpt6_len, "YVL.FsEnd6Len") \
|
||||
EM(afs_eproto_yvl_fsendpt_num, "YVL.FsEndCount") \
|
||||
EM(afs_eproto_yvl_fsendpt_type, "YVL.FsEndType") \
|
||||
EM(afs_eproto_yvl_vlendpt4_len, "YVL.VlEnd4Len") \
|
||||
EM(afs_eproto_yvl_vlendpt6_len, "YVL.VlEnd6Len") \
|
||||
E_(afs_eproto_yvl_vlendpt_type, "YVL.VlEndType")
|
||||
|
||||
|
||||
/*
|
||||
* Export enum symbols via userspace.
|
||||
|
|
@ -555,24 +592,25 @@ TRACE_EVENT(afs_edit_dir,
|
|||
);
|
||||
|
||||
TRACE_EVENT(afs_protocol_error,
|
||||
TP_PROTO(struct afs_call *call, int error, const void *where),
|
||||
TP_PROTO(struct afs_call *call, int error, enum afs_eproto_cause cause),
|
||||
|
||||
TP_ARGS(call, error, where),
|
||||
TP_ARGS(call, error, cause),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__field(unsigned int, call )
|
||||
__field(int, error )
|
||||
__field(const void *, where )
|
||||
__field(unsigned int, call )
|
||||
__field(int, error )
|
||||
__field(enum afs_eproto_cause, cause )
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
__entry->call = call ? call->debug_id : 0;
|
||||
__entry->error = error;
|
||||
__entry->where = where;
|
||||
__entry->cause = cause;
|
||||
),
|
||||
|
||||
TP_printk("c=%08x r=%d sp=%pSR",
|
||||
__entry->call, __entry->error, __entry->where)
|
||||
TP_printk("c=%08x r=%d %s",
|
||||
__entry->call, __entry->error,
|
||||
__print_symbolic(__entry->cause, afs_eproto_causes))
|
||||
);
|
||||
|
||||
TRACE_EVENT(afs_cm_no_server,
|
||||
|
|
|
|||
Loading…
Reference in New Issue