Change in osmo-sgsn[master]: gbproxy: Add comments to sgsn functions

[daniel]

daniel has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-sgsn/+/21888 )


Change subject: gbproxy: Add comments to sgsn functions
......................................................................

gbproxy: Add comments to sgsn functions

Change-Id: I8c96308045112f25292b0e57c306d8486a2524cc
---
M src/gbproxy/gb_proxy_main.c
M src/gbproxy/gb_proxy_peer.c
2 files changed, 24 insertions(+), 1 deletion(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-sgsn refs/changes/88/21888/1

diff --git a/src/gbproxy/gb_proxy_main.c b/src/gbproxy/gb_proxy_main.c
index e85e951..c660ede 100644
--- a/src/gbproxy/gb_proxy_main.c
+++ b/src/gbproxy/gb_proxy_main.c
@@ -303,6 +303,8 @@
 
 	gprs_ns2_vty_create();
 
+	/* TODO: Warn if we create a gbproxy_nse for an NSEI which we don't have a bind */
+
 	/* start telnet after reading config for vty_get_bind_addr() */
 	rc = telnet_init_dynif(tall_sgsn_ctx, NULL,
 			       vty_get_bind_addr(), OSMO_VTY_PORT_GBPROXY);
diff --git a/src/gbproxy/gb_proxy_peer.c b/src/gbproxy/gb_proxy_peer.c
index 595e2a6..a966c6c 100644
--- a/src/gbproxy/gb_proxy_peer.c
+++ b/src/gbproxy/gb_proxy_peer.c
@@ -343,7 +343,15 @@
 	return nse;
 }
 
-/* SGSN */
+/***********************************************************************
+ * SGSN - Serving GPRS Support Node
+ ***********************************************************************/
+
+/*! Allocate a new SGSN. This ensures the corresponding gbproxy_nse is allocated as well
+ *  \param[in] cfg The gbproxy configuration
+ *  \param[in] nsei The nsei where the SGSN can be reached
+ *  \return The SGSN, NULL if it couldn't be allocated
+ */
 struct gbproxy_sgsn *gbproxy_sgsn_alloc(struct gbproxy_config *cfg, uint16_t nsei)
 {
 	struct gbproxy_sgsn *sgsn;
@@ -381,6 +389,9 @@
 	talloc_free(sgsn);
 }
 
+/*! Free the SGSN. This ensures the corresponding gbproxy_nse is freed as well
+ *  \param[in] sgsn The SGSN
+ */
 void gbproxy_sgsn_free(struct gbproxy_sgsn *sgsn)
 {
 	if (!sgsn)
@@ -392,6 +403,11 @@
 	_sgsn_free(sgsn);
 }
 
+/*! Return the SGSN for a given NSEI
+ *  \param[in] cfg The gbproxy configuration
+ *  \param[in] nsei The nsei where the SGSN can be reached
+ *  \return Returns the matching SGSN or NULL if it couldn't be found
+ */
 struct gbproxy_sgsn *gbproxy_sgsn_by_nsei(struct gbproxy_config *cfg, uint16_t nsei)
 {
 	struct gbproxy_sgsn *sgsn;
@@ -405,6 +421,11 @@
 	return NULL;
 }
 
+/*! Return the SGSN for a given NSEI, creating a new one if none exists
+ *  \param[in] cfg The gbproxy configuration
+ *  \param[in] nsei The nsei where the SGSN can be reached
+ *  \return Returns the SGSN
+ */
 struct gbproxy_sgsn *gbproxy_sgsn_by_nsei_or_new(struct gbproxy_config *cfg, uint16_t nsei)
 {
 	struct gbproxy_sgsn *sgsn;

-- 
To view, visit https://gerrit.osmocom.org/c/osmo-sgsn/+/21888
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Gerrit-Project: osmo-sgsn
Gerrit-Branch: master
Gerrit-Change-Id: I8c96308045112f25292b0e57c306d8486a2524cc
Gerrit-Change-Number: 21888
Gerrit-PatchSet: 1
Gerrit-Owner: daniel <dwillmann at sysmocom.de>
Gerrit-MessageType: newchange
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