Attention is currently required from: laforge, pespin, msuraev.
neels has posted comments on this change. (
https://gerrit.osmocom.org/c/osmo-hnbgw/+/31431 )
Change subject: context map: introduce RUA and SCCP FSMs to fix leaks
......................................................................
Patch Set 6:
(5 comments)
File include/osmocom/hnbgw/context_map.h:
https://gerrit.osmocom.org/c/osmo-hnbgw/+/31431/comment/48b49e44_1257e896
PS6, Line 18: * - For events that may send a RANAP message towards CN via SCCP, the msgb
shall have reserved headrom to fit a struct
typo: headroom
lol head-ROM =)
File src/osmo-hnbgw/context_map_rua.c:
https://gerrit.osmocom.org/c/osmo-hnbgw/+/31431/comment/25581165_5e5caf15
PS6, Line 57: * Assumes local variable fi exists. */
That's very confusing - better make no assumptions
and pass all variables explicitly. […]
I agree with the principle but this one is
the exception; 'fi' is literally everywhere in an fsm implementation .c file. We
use a macro like this in pretty much all osmo_fsm implementation .c files.
File src/osmo-hnbgw/context_map_sccp.c:
https://gerrit.osmocom.org/c/osmo-hnbgw/+/31431/comment/0054f0c6_281a465d
PS6, Line 63: * Assumes local variable fi exists. */
Same here.
Done
File src/osmo-hnbgw/hnbgw.c:
https://gerrit.osmocom.org/c/osmo-hnbgw/+/31431/comment/058fe4fa_a38f7bce
PS6, Line 862: ranap_msg = msgb_alloc_c(OTC_SELECT, sizeof(struct osmo_scu_prim) + 1500,
name);
Where does 1500 comes from?
that's a good
question, I took it from prior code. Actually, before, osmo-hnbgw would reserve 1500 in
*total*, and would even subtract from that the headroom required for osmo_scu_prim; so
apparently all RANAP messages that osmo-hnbgw processed so far are way shorter than that.
Maybe it comes from the common MTU = 1500?
File src/osmo-hnbgw/hnbgw_rua.c:
https://gerrit.osmocom.org/c/osmo-hnbgw/+/31431/comment/0082d02a_a53af90a
PS6, Line 230: msg = msgb_alloc(1500, "rua_to_sccp");
(this is where I took 1500 from; note that it first puts the prim, and then the ranap in
l2h below)
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Gerrit-Project: osmo-hnbgw
Gerrit-Branch: master
Gerrit-Change-Id: I6ff7e36532ff57c6f2d3e7e419dd22ef27dafd19
Gerrit-Change-Number: 31431
Gerrit-PatchSet: 6
Gerrit-Owner: neels <nhofmeyr(a)sysmocom.de>
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