diff options
| -rw-r--r-- | ospfd/ospf_sr.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/ospfd/ospf_sr.c b/ospfd/ospf_sr.c index e19dbc7d3b..60485a770f 100644 --- a/ospfd/ospf_sr.c +++ b/ospfd/ospf_sr.c @@ -385,9 +385,10 @@ mpls_label_t ospf_sr_local_block_request_label(void) mpls_label_t label; uint32_t index; uint32_t pos; + uint32_t size = srlb->end - srlb->start + 1; /* Check if we ran out of available labels */ - if (srlb->current >= srlb->end) + if (srlb->current >= size) return MPLS_INVALID_LABEL; /* Get first available label and mark it used */ @@ -399,7 +400,7 @@ mpls_label_t ospf_sr_local_block_request_label(void) /* Jump to the next free position */ srlb->current++; pos = srlb->current % SRLB_BLOCK_SIZE; - while (srlb->current < srlb->end) { + while (srlb->current < size) { if (pos == 0) index++; if (!((1ULL << pos) & srlb->used_mark[index])) @@ -410,6 +411,10 @@ mpls_label_t ospf_sr_local_block_request_label(void) } } + if (srlb->current == size) + zlog_warn( + "SR: Warning, SRLB is depleted and next label request will fail"); + return label; } |