[S] Change in libosmo-sccp[master]: asp: Apply SCTP primary address changes after the ASP was started

[pespin]

pespin has submitted this change. ( 
https://gerrit.osmocom.org/c/libosmo-sccp/+/34609?usp=email )

Change subject: asp: Apply SCTP primary address changes after the ASP was 
started
......................................................................

asp: Apply SCTP primary address changes after the ASP was started

Related: OS#6077
Change-Id: I2beb597b2e98d8983177fb21882a461219b3aa58
---
M src/osmo_ss7_asp.c
M src/osmo_ss7_vty.c
M src/ss7_internal.h
3 files changed, 37 insertions(+), 0 deletions(-)

Approvals:
  pespin: Looks good to me, approved
  laforge: Looks good to me, but someone else must approve
  Jenkins Builder: Verified
  osmith: Looks good to me, but someone else must approve




diff --git a/src/osmo_ss7_asp.c b/src/osmo_ss7_asp.c
index 6068a9d..f26e2e1 100644
--- a/src/osmo_ss7_asp.c
+++ b/src/osmo_ss7_asp.c
@@ -617,6 +617,14 @@
        return asp->fi->state == XUA_ASP_S_ACTIVE;
 }

+bool ss7_asp_is_started(const struct osmo_ss7_asp *asp)
+{
+       if (asp->cfg.is_server)
+               return !!asp->server;
+       else
+               return !!asp->client;
+}
+
 /***********************************************************************
  * libosmo-netif integration for SCTP stream server/client
  ***********************************************************************/
diff --git a/src/osmo_ss7_vty.c b/src/osmo_ss7_vty.c
index 4e13522..000b1cf 100644
--- a/src/osmo_ss7_vty.c
+++ b/src/osmo_ss7_vty.c
@@ -732,11 +732,28 @@
 {
        struct osmo_ss7_asp *asp = vty->index;
        bool is_primary = argc > 1;
+       int old_idx_primary = asp->cfg.remote.idx_primary;
+       int rc;

        if (osmo_ss7_asp_peer_add_host2(&asp->cfg.remote, asp, argv[0], 
is_primary) != 0) {
                vty_out(vty, "%% Failed adding host '%s' to set%s", argv[0], 
VTY_NEWLINE);
                return CMD_WARNING;
        }
+
+       if (!ss7_asp_is_started(asp))
+               return CMD_SUCCESS;
+       if (asp->cfg.proto == OSMO_SS7_ASP_PROT_IPA)
+               return CMD_SUCCESS;
+
+       /* The SCTP socket is already created, dynamically apply the new 
primary if it changed: */
+       if (asp->cfg.proto != OSMO_SS7_ASP_PROT_IPA && ss7_asp_is_started(asp)) 
{
+               if ((rc = ss7_asp_apply_primary_address(asp)) < 0) {
+                       /* Failed, rollback changes: */
+                       asp->cfg.remote.idx_primary = old_idx_primary;
+                       vty_out(vty, "%% Failed applying primary on host 
'%s'%s", argv[0], VTY_NEWLINE);
+                       return CMD_WARNING;
+               }
+       }
        return CMD_SUCCESS;
 }

diff --git a/src/ss7_internal.h b/src/ss7_internal.h
index 6449c5b..ad71e83 100644
--- a/src/ss7_internal.h
+++ b/src/ss7_internal.h
@@ -18,7 +18,9 @@
                                   uint16_t remote_port, uint16_t local_port,
                                   enum osmo_ss7_asp_protocol proto);
 bool ss7_asp_set_default_peer_hosts(struct osmo_ss7_asp *asp);
+bool ss7_asp_is_started(const struct osmo_ss7_asp *asp);
 struct osmo_ss7_asp *ss7_asp_find_by_socket_addr(int fd);
+
 int ss7_asp_proto_to_ip_proto(enum osmo_ss7_asp_protocol proto);
 int ss7_asp_ipa_srv_conn_cb(struct osmo_stream_srv *conn);
 int ss7_asp_xua_srv_conn_cb(struct osmo_stream_srv *conn);

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Gerrit-Project: libosmo-sccp
Gerrit-Branch: master
Gerrit-Change-Id: I2beb597b2e98d8983177fb21882a461219b3aa58
Gerrit-Change-Number: 34609
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <pes...@sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <vyanits...@sysmocom.de>
Gerrit-Reviewer: laforge <lafo...@osmocom.org>
Gerrit-Reviewer: osmith <osm...@sysmocom.de>
Gerrit-Reviewer: pespin <pes...@sysmocom.de>
Gerrit-MessageType: merged