lynxis lazus has submitted this change. ( 
https://gerrit.osmocom.org/c/libosmocore/+/21485 )

Change subject: gprs_ns2: add member name to bind
......................................................................

gprs_ns2: add member name to bind

Every bind will have a unique name. Add a name argument
to all bind creating functions and require them to be unique.

This is an API break but there wasn't yet a release with NS2.

Change-Id: I8f1d66b7b3b12da12db8b5e6bd08c1beff085b3e
---
M include/osmocom/gprs/gprs_ns2.h
M src/gb/gprs_ns2.c
M src/gb/gprs_ns2_fr.c
M src/gb/gprs_ns2_frgre.c
M src/gb/gprs_ns2_internal.h
M src/gb/gprs_ns2_udp.c
M src/gb/gprs_ns2_vty.c
M src/gb/libosmogb.map
8 files changed, 75 insertions(+), 4 deletions(-)

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



diff --git a/include/osmocom/gprs/gprs_ns2.h b/include/osmocom/gprs/gprs_ns2.h
index 6140da2..86bf1ae 100644
--- a/include/osmocom/gprs/gprs_ns2.h
+++ b/include/osmocom/gprs/gprs_ns2.h
@@ -162,8 +162,13 @@
 void gprs_ns2_free_nsvc(struct gprs_ns2_vc *nsvc);
 struct gprs_ns2_vc *gprs_ns2_nsvc_by_nsvci(struct gprs_ns2_inst *nsi, uint16_t 
nsvci);

+/* generic VL driver */
+struct gprs_ns2_vc_bind *gprs_ns2_bind_by_name(struct gprs_ns2_inst *nsi,
+                                              const char *name);
+
 /* IP VL driver */
 int gprs_ns2_ip_bind(struct gprs_ns2_inst *nsi,
+                    const char *name,
                     const struct osmo_sockaddr *local,
                     int dscp,
                     struct gprs_ns2_vc_bind **result);
@@ -176,6 +181,7 @@
                const char *netif);
 const char *gprs_ns2_fr_bind_netif(struct gprs_ns2_vc_bind *bind);
 int gprs_ns2_fr_bind(struct gprs_ns2_inst *nsi,
+                    const char *name,
                     const char *netif,
                     struct osmo_fr_network *fr_network,
                     enum osmo_fr_role fr_role,
@@ -226,6 +232,7 @@
                const struct osmo_sockaddr *saddr);

 int gprs_ns2_frgre_bind(struct gprs_ns2_inst *nsi,
+                       const char *name,
                        const struct osmo_sockaddr *local,
                        int dscp,
                        struct gprs_ns2_vc_bind **result);
diff --git a/src/gb/gprs_ns2.c b/src/gb/gprs_ns2.c
index 890b656..bd69acf 100644
--- a/src/gb/gprs_ns2.c
+++ b/src/gb/gprs_ns2.c
@@ -1239,6 +1239,7 @@
                bind->driver->free_bind(bind);

        llist_del(&bind->list);
+       talloc_free((char *)bind->name);
        talloc_free(bind);
 }

@@ -1251,6 +1252,24 @@
        }
 }

+/*! Search for a bind with a unique name
+ *  \param[in] nsi NS instance on which we operate
+ *  \param[in] name The unique bind name to search for
+ *  \return the bind or NULL if not found
+ */
+struct gprs_ns2_vc_bind *gprs_ns2_bind_by_name(
+               struct gprs_ns2_inst *nsi, const char *name)
+{
+       struct gprs_ns2_vc_bind *bind;
+
+       llist_for_each_entry(bind, &nsi->binding, list) {
+               if (!strcmp(bind->name, name))
+                       return bind;
+       }
+
+       return NULL;
+}
+
 enum gprs_ns2_vc_mode gprs_ns2_dialect_to_vc_mode(
                enum gprs_ns2_dialect dialect)
 {
diff --git a/src/gb/gprs_ns2_fr.c b/src/gb/gprs_ns2_fr.c
index 6b4fa52..5da6fce 100644
--- a/src/gb/gprs_ns2_fr.c
+++ b/src/gb/gprs_ns2_fr.c
@@ -453,19 +453,33 @@
  *  \param[out] result pointer to created bind
  *  \return 0 on success; negative on error */
 int gprs_ns2_fr_bind(struct gprs_ns2_inst *nsi,
+                    const char *name,
                     const char *netif,
                     struct osmo_fr_network *fr_network,
                     enum osmo_fr_role fr_role,
                     struct gprs_ns2_vc_bind **result)
 {
-       struct gprs_ns2_vc_bind *bind = talloc_zero(nsi, struct 
gprs_ns2_vc_bind);
+       struct gprs_ns2_vc_bind *bind;
        struct priv_bind *priv;
        struct osmo_fr_link *fr_link;
        int rc = 0;

+       if (!name)
+               return -EINVAL;
+
+       if (gprs_ns2_bind_by_name(nsi, name))
+               return -EALREADY;
+
+       bind = talloc_zero(nsi, struct gprs_ns2_vc_bind);
        if (!bind)
                return -ENOSPC;

+       bind->name = talloc_strdup(bind, name);
+       if (!bind->name) {
+               rc = -ENOSPC;
+               goto err_bind;
+       }
+
        bind->driver = &vc_driver_fr;
        bind->ll = GPRS_NS2_LL_FR;
        bind->send_vc = fr_vc_sendmsg;
@@ -475,7 +489,7 @@
        priv = bind->priv = talloc_zero(bind, struct priv_bind);
        if (!priv) {
                rc = -ENOSPC;
-               goto err_bind;
+               goto err_name;
        }

        priv->fd.cb = fr_fd_cb;
@@ -536,6 +550,8 @@
        osmo_fr_link_free(fr_link);
 err_priv:
        talloc_free(priv);
+err_name:
+       talloc_free((char *)bind->name);
 err_bind:
        talloc_free(bind);

diff --git a/src/gb/gprs_ns2_frgre.c b/src/gb/gprs_ns2_frgre.c
index 423ea4b..014517a 100644
--- a/src/gb/gprs_ns2_frgre.c
+++ b/src/gb/gprs_ns2_frgre.c
@@ -538,6 +538,7 @@
  *  \param[out] result pointer to created bind
  *  \return 0 on success; negative on error */
 int gprs_ns2_frgre_bind(struct gprs_ns2_inst *nsi,
+                       const char *name,
                        const struct osmo_sockaddr *local,
                        int dscp,
                        struct gprs_ns2_vc_bind **result)
@@ -546,6 +547,12 @@
        struct priv_bind *priv;
        int rc;

+       if (!name)
+               return -ENOSPC;
+
+       if (gprs_ns2_bind_by_name(nsi, name))
+               return -EALREADY;
+
        if (!bind)
                return -ENOSPC;

@@ -554,6 +561,12 @@
                return -EINVAL;
        }

+       bind->name = talloc_strdup(bind, name);
+       if (!bind->name) {
+               talloc_free(bind);
+               return -ENOSPC;
+       }
+
        bind->driver = &vc_driver_frgre;
        bind->ll = GPRS_NS2_LL_FR_GRE;
        bind->send_vc = frgre_vc_sendmsg;
diff --git a/src/gb/gprs_ns2_internal.h b/src/gb/gprs_ns2_internal.h
index 8c0c135..9bfe0b0 100644
--- a/src/gb/gprs_ns2_internal.h
+++ b/src/gb/gprs_ns2_internal.h
@@ -181,6 +181,8 @@

 /*! Structure repesenting a bind instance. E.g. IPv4 listen port. */
 struct gprs_ns2_vc_bind {
+       /*! unique name */
+       const char *name;
        /*! list entry in nsi */
        struct llist_head list;
        /*! list of all VC */
diff --git a/src/gb/gprs_ns2_udp.c b/src/gb/gprs_ns2_udp.c
index b923e81..3eb8116 100644
--- a/src/gb/gprs_ns2_udp.c
+++ b/src/gb/gprs_ns2_udp.c
@@ -298,6 +298,7 @@
  *  \param[out] result if set, returns the bind object
  *  \return 0 on success; negative in case of error */
 int gprs_ns2_ip_bind(struct gprs_ns2_inst *nsi,
+                    const char *name,
                     const struct osmo_sockaddr *local,
                     int dscp,
                     struct gprs_ns2_vc_bind **result)
@@ -306,6 +307,12 @@
        struct priv_bind *priv;
        int rc;

+       if (!name)
+               return -EINVAL;
+
+       if (gprs_ns2_bind_by_name(nsi, name))
+               return -EALREADY;
+
        bind = gprs_ns2_ip_bind_by_sockaddr(nsi, local);
        if (bind) {
                *result = bind;
@@ -316,6 +323,12 @@
        if (!bind)
                return -ENOSPC;

+       bind->name = talloc_strdup(bind, name);
+       if (!bind->name) {
+               talloc_free(bind);
+               return -ENOSPC;
+       }
+
        if (local->u.sa.sa_family != AF_INET && local->u.sa.sa_family != 
AF_INET6) {
                talloc_free(bind);
                return -EINVAL;
diff --git a/src/gb/gprs_ns2_vty.c b/src/gb/gprs_ns2_vty.c
index d285c22..fdb6b0b 100644
--- a/src/gb/gprs_ns2_vty.c
+++ b/src/gb/gprs_ns2_vty.c
@@ -895,7 +895,7 @@
        } else {
                /* UDP */
                osmo_sockaddr_str_to_sockaddr(&priv.udp, &sockaddr.u.sas);
-               if (gprs_ns2_ip_bind(vty_nsi, &sockaddr, priv.dscp, &bind)) {
+               if (gprs_ns2_ip_bind(vty_nsi, "vtybind", &sockaddr, priv.dscp, 
&bind)) {
                        /* TODO: could not bind on the specific address */
                        return -1;
                }
@@ -962,7 +962,7 @@
                                                vty_nsi,
                                                vtyvc->netif);
                        if (!fr) {
-                               rc = gprs_ns2_fr_bind(vty_nsi, vtyvc->netif, 
vty_fr_network, vtyvc->fr.role, &fr);
+                               rc = gprs_ns2_fr_bind(vty_nsi, vtyvc->netif, 
vtyvc->netif, vty_fr_network, vtyvc->fr.role, &fr);
                                if (rc < 0) {
                                        LOGP(DLNS, LOGL_ERROR, "Can not create 
fr bind on device %s err: %d\n", vtyvc->netif, rc);
                                        return rc;
diff --git a/src/gb/libosmogb.map b/src/gb/libosmogb.map
index e3301be..7cc1cc8 100644
--- a/src/gb/libosmogb.map
+++ b/src/gb/libosmogb.map
@@ -109,6 +109,7 @@
 gprs_ns_msgb_alloc;

 gprs_ns2_aff_cause_prim_strs;
+gprs_ns2_bind_by_name;
 gprs_ns2_cause_strs;
 gprs_ns2_create_nse;
 gprs_ns2_dynamic_create_nse;

--
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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Change-Id: I8f1d66b7b3b12da12db8b5e6bd08c1beff085b3e
Gerrit-Change-Number: 21485
Gerrit-PatchSet: 11
Gerrit-Owner: lynxis lazus <[email protected]>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: daniel <[email protected]>
Gerrit-Reviewer: laforge <[email protected]>
Gerrit-Reviewer: lynxis lazus <[email protected]>
Gerrit-MessageType: merged

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