We cant have a listener for all available addresses

[gbregman]

When we add a listener to the system we must use the specific address is listens on. SPDK wouldn't let us to use INADDR_ANY (that is, 0.0.0.0) as an address and allow connection for each and every interface. This can be solved by applying the following change to SPDK:

diff --git a/lib/nvme/nvme.c b/lib/nvme/nvme.c
index 5b08198b0..97b3997a0 100644
--- a/lib/nvme/nvme.c
+++ b/lib/nvme/nvme.c
@@ -1453,9 +1453,18 @@ spdk_nvme_transport_id_compare(const struct spdk_nvme_transport_id *trid1,
                return spdk_pci_addr_compare(&pci_addr1, &pci_addr2);
        }

-       cmp = strcasecmp(trid1->traddr, trid2->traddr);
-       if (cmp) {
-               return cmp;
+       if (trid1->trtype == SPDK_NVME_TRANSPORT_TCP &&
+               ((trid1->adrfam == SPDK_NVMF_ADRFAM_IPV4 && strcasecmp(trid1->traddr, "0.0.0.0") == 0) ||
+               (trid1->adrfam == SPDK_NVMF_ADRFAM_IPV6 && strcasecmp(trid1->traddr, "::") == 0))) {
+
+               /* If the listener uses INADDR_ANY allow all IP addresses */
+               cmp = 0;
+       }
+       else {
+               cmp = strcasecmp(trid1->traddr, trid2->traddr);
+               if (cmp) {
+                       return cmp;
+               }
        }

        cmp = cmp_int(trid1->adrfam, trid2->adrfam);