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authorPhilipp Maier <pmaier@sysmocom.de>2017-10-17 15:23:53 +0200
committerHarald Welte <laforge@gnumonks.org>2017-10-24 10:50:07 +0000
commit224a6dda02a2fcf11f70ac25abe9c780167649bf (patch)
tree16327523b7671fe50d4820f77da9bb30327e338b /include/osmocom/gprs
parentf0e392ac2dbb44eb42a242353f392d570b5de8e8 (diff)
gb: optionally allow nsip packets only from a specific host
When listening for nsip connections is enabled, then every remote host may send packets. This is useful for an SGSN that serves multiple PCUs, but contraproductive for a PCU that awaits packets from a single SGSN. Add struct members remote_ip, and remote_port to struct gprs_ns_inst, when set, then the listening end uses connect() to ensure that only the expected host may send packets. Related: OS#2401 Change-Id: Ifeb201d9006eec275a46708007ff342cdfc14e45
Diffstat (limited to 'include/osmocom/gprs')
-rw-r--r--include/osmocom/gprs/gprs_ns.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/osmocom/gprs/gprs_ns.h b/include/osmocom/gprs/gprs_ns.h
index 5aee755f..d4aef824 100644
--- a/include/osmocom/gprs/gprs_ns.h
+++ b/include/osmocom/gprs/gprs_ns.h
@@ -88,6 +88,8 @@ struct gprs_ns_inst {
struct osmo_fd fd;
uint32_t local_ip;
uint16_t local_port;
+ uint32_t remote_ip;
+ uint16_t remote_port;
int dscp;
} nsip;
/*! NS-over-FR-over-GRE-over-IP specific bits */