net/mpls/af_mpls.c

74 static void rtmsg_lfib(int event, u32 label, struct mpls_route *rt,
172 		/* Read and decode the current label */
179 		if (likely(dec.label >= MPLS_LABEL_FIRST_UNRESERVED)) {
180 			hash = jhash_1word(dec.label, hash);
182 			/* The entropy label follows the entropy label
184 			 * label was just added to the hash - no need to
185 			 * go any deeper either in the label stack or in the
190 		} else if (dec.label == MPLS_LABEL_ENTROPY) {
197 		/* found bottom label; does skb have room for a header? */
383 	/* Read and decode the label */
387 	rt = mpls_route_input_rcu(net, dec.label);
397 	/* Pop the label */
948 			       "Invalid label - must be MPLS_LABEL_FIRST_UNRESERVED or higher");
977 	/* If a label was not specified during insert pick one */
1688 		   u8 labels, const u32 label[])
1701 		nla_label[i] = mpls_entry_encode(label[i], 0, 0, bos);
1710 		   u32 label[], struct netlink_ext_ack *extack)
1718 	/* len needs to be an even multiple of 4 (the label size). Number
1734 	/* when label == NULL, caller wants number of labels */
1735 	if (!label)
1749 					    "TTL in label must be 0");
1755 					    "Traffic class in label must be 0");
1763 					       "BOS bit must be set in first label");
1766 					       "BOS bit can only be set in first label");
1771 		switch (dec.label) {
1773 			/* RFC3032: This is a label that an LSR may
1782 		label[i] = dec.label;
1973 			   u32 label, struct mpls_route *rt, int flags)
1994 	if (nla_put_labels(skb, RTA_DST, 1, &label))
2258 static void rtmsg_lfib(int event, u32 label, struct mpls_route *rt,
2270 	err = mpls_dump_route(skb, portid, seq, event, label, rt, nlm_flags);