December 2024 - gerrit-log - lists.osmocom.org

[XS] Change in libasn1c[master]: Bump version: 0.9.37.1-2d31 → 0.9.38

by osmith

Attention is currently required from: dexter, pespin. osmith has posted comments on this change by osmith. ( https://gerrit.osmocom.org/c/libasn1c/+/38994?usp=email ) Change subject: Bump version: 0.9.37.1-2d31 → 0.9.38 ...................................................................... Patch Set 1: (1 comment) File debian/changelog: https://gerrit.osmocom.org/c/libasn1c/+/38994/comment/0fbeebf1_8442e9e3?usp… : PS1, Line 3: * debian/control: Build-Depends: add pkg-config > Currently libasn1c fails to build in osmocom:latest for Debian Unstable. […] Done -- To view, visit https://gerrit.osmocom.org/c/libasn1c/+/38994?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: libasn1c Gerrit-Branch: master Gerrit-Change-Id: I5f87965ef761e7d2fb639642ffcf698b23197f3b Gerrit-Change-Number: 38994 Gerrit-PatchSet: 1 Gerrit-Owner: osmith <osmith(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: dexter <pmaier(a)sysmocom.de> Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-Attention: pespin <pespin(a)sysmocom.de> Gerrit-Attention: dexter <pmaier(a)sysmocom.de> Gerrit-Comment-Date: Tue, 03 Dec 2024 10:02:02 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Comment-In-Reply-To: osmith <osmith(a)sysmocom.de>

6 months, 3 weeks

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[S] Change in osmocom-bb[master]: debian: add subpackage osmocom-bb-trxcon

by osmith

osmith has submitted this change. ( https://gerrit.osmocom.org/c/osmocom-bb/+/39000?usp=email ) Change subject: debian: add subpackage osmocom-bb-trxcon ...................................................................... debian: add subpackage osmocom-bb-trxcon Change-Id: I548cec7427d70706b1b477c0845234efe6cf825f --- M debian/control M debian/rules 2 files changed, 10 insertions(+), 0 deletions(-) Approvals: fixeria: Looks good to me, but someone else must approve laforge: Looks good to me, approved Jenkins Builder: Verified pespin: Looks good to me, but someone else must approve diff --git a/debian/control b/debian/control index c90b6a7..fbcda98 100644 --- a/debian/control +++ b/debian/control @@ -27,3 +27,9 @@ Multi-Arch: foreign Depends: ${misc:Depends}, ${shlibs:Depends} Description: MS-side implementation of L2 and L3 GSM protocols + +Package: osmocom-bb-trxcon +Architecture: any +Multi-Arch: foreign +Depends: ${misc:Depends}, ${shlibs:Depends} +Description: OsmocomBB <-> SDR connection bridge diff --git a/debian/rules b/debian/rules index df0520e..c3f71ad 100755 --- a/debian/rules +++ b/debian/rules @@ -7,6 +7,10 @@ export SUBPKG_CFG=--with-gapk-io; \ dh $@ $(DH_ARGS) + export SUBPKG=trxcon; \ + export SUBPKG_DIR=trxcon; \ + dh $@ $(DH_ARGS) + # We need to run autoreconf multiple times, but dh_autoreconf can only run once # (see dh-autoreconf(7)). Run autoreconf directly to work around this. override_dh_autoreconf: -- To view, visit https://gerrit.osmocom.org/c/osmocom-bb/+/39000?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: merged Gerrit-Project: osmocom-bb Gerrit-Branch: master Gerrit-Change-Id: I548cec7427d70706b1b477c0845234efe6cf825f Gerrit-Change-Number: 39000 Gerrit-PatchSet: 1 Gerrit-Owner: osmith <osmith(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: osmith <osmith(a)sysmocom.de> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de>

6 months, 3 weeks

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[S] Change in osmocom-bb[master]: debian: prepare for more subpackages

by osmith

osmith has submitted this change. ( https://gerrit.osmocom.org/c/osmocom-bb/+/38999?usp=email ) Change subject: debian: prepare for more subpackages ...................................................................... debian: prepare for more subpackages Prepare to add these subpackages in follow-up patches: * osmocom-bb-trx-toolkit * osmocom-bb-trxcon * osmocom-bb-virtphy We need these components to run some of the ttnc3 testsuites. By having them packaged, we can just install them from the binary repositories along with the SUT. trxcon and virtphy are autootols based, so rework debian/rules to support building multiple autotools projects. Related: https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/38851/1..2//COMMIT_MSG#b9 Change-Id: I77ad988f5405e6fa9e585eeb646e513ac7d92485 --- M debian/rules 1 file changed, 21 insertions(+), 2 deletions(-) Approvals: Jenkins Builder: Verified fixeria: Looks good to me, approved pespin: Looks good to me, but someone else must approve diff --git a/debian/rules b/debian/rules index 8dd0df8..df0520e 100755 --- a/debian/rules +++ b/debian/rules @@ -1,7 +1,26 @@ #!/usr/bin/make -f +DH_ARGS := -D src/host/$$SUBPKG_DIR --with-autoreconf %: - dh $@ -D src/host/layer23 --with-autoreconf + export SUBPKG=layer23; \ + export SUBPKG_DIR=layer23; \ + export SUBPKG_CFG=--with-gapk-io; \ + dh $@ $(DH_ARGS) + +# We need to run autoreconf multiple times, but dh_autoreconf can only run once +# (see dh-autoreconf(7)). Run autoreconf directly to work around this. +override_dh_autoreconf: + cd src/host/$$SUBPKG_DIR && autoreconf -fi override_dh_auto_configure: - dh_auto_configure -D src/host/layer23 -- --with-gapk-io + dh_auto_configure -D src/host/$$SUBPKG_DIR -- $$SUBPKG_CFG + +override_dh_auto_install: + dh_auto_install -O-Dsrc/host/$$SUBPKG_DIR --destdir=debian/osmocom-bb-$$SUBPKG/ + +# Run dh_prep only for the first subpackage. Otherwise previously built +# binaries get removed and we end up with empty packages. +override_dh_prep: + if [ "$$SUBPKG" = "layer23" ]; then \ + dh_prep; \ + fi -- To view, visit https://gerrit.osmocom.org/c/osmocom-bb/+/38999?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: merged Gerrit-Project: osmocom-bb Gerrit-Branch: master Gerrit-Change-Id: I77ad988f5405e6fa9e585eeb646e513ac7d92485 Gerrit-Change-Number: 38999 Gerrit-PatchSet: 1 Gerrit-Owner: osmith <osmith(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: osmith <osmith(a)sysmocom.de> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de>

6 months, 3 weeks

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[S] Change in osmocom-bb[master]: debian: add subpackage osmocom-bb-virtphy

by osmith

osmith has submitted this change. ( https://gerrit.osmocom.org/c/osmocom-bb/+/39001?usp=email ) Change subject: debian: add subpackage osmocom-bb-virtphy ...................................................................... debian: add subpackage osmocom-bb-virtphy I've decided to name the package osmocom-bb-virtphy so there is no underscore in it (would look weird in addition to the minus character) and because it matches the name of the binary "virtphy". Change-Id: I09d98aba81ab6c76ad46aae36e7369114cef7dd7 --- M debian/control M debian/rules 2 files changed, 10 insertions(+), 0 deletions(-) Approvals: fixeria: Looks good to me, but someone else must approve laforge: Looks good to me, approved Jenkins Builder: Verified diff --git a/debian/control b/debian/control index fbcda98..7c5306c 100644 --- a/debian/control +++ b/debian/control @@ -33,3 +33,9 @@ Multi-Arch: foreign Depends: ${misc:Depends}, ${shlibs:Depends} Description: OsmocomBB <-> SDR connection bridge + +Package: osmocom-bb-virtphy +Architecture: any +Multi-Arch: foreign +Depends: ${misc:Depends}, ${shlibs:Depends} +Description: Osmocom virtual physical layer diff --git a/debian/rules b/debian/rules index c3f71ad..e4f5cb0 100755 --- a/debian/rules +++ b/debian/rules @@ -11,6 +11,10 @@ export SUBPKG_DIR=trxcon; \ dh $@ $(DH_ARGS) + export SUBPKG=virtphy; \ + export SUBPKG_DIR=virt_phy; \ + dh $@ $(DH_ARGS) + # We need to run autoreconf multiple times, but dh_autoreconf can only run once # (see dh-autoreconf(7)). Run autoreconf directly to work around this. override_dh_autoreconf: -- To view, visit https://gerrit.osmocom.org/c/osmocom-bb/+/39001?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: merged Gerrit-Project: osmocom-bb Gerrit-Branch: master Gerrit-Change-Id: I09d98aba81ab6c76ad46aae36e7369114cef7dd7 Gerrit-Change-Number: 39001 Gerrit-PatchSet: 2 Gerrit-Owner: osmith <osmith(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: osmith <osmith(a)sysmocom.de>

6 months, 3 weeks

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[XS] Change in osmocom-bb[master]: debian: add subpackage osmocom-bb-trx-toolkit

by osmith

osmith has submitted this change. ( https://gerrit.osmocom.org/c/osmocom-bb/+/39002?usp=email ) Change subject: debian: add subpackage osmocom-bb-trx-toolkit ...................................................................... debian: add subpackage osmocom-bb-trx-toolkit Change-Id: I3d8140991afaf08b6fff0e80d45dd0310c98ea30 --- M debian/control A debian/osmocom-bb-trx-toolkit.install 2 files changed, 7 insertions(+), 0 deletions(-) Approvals: Jenkins Builder: Verified fixeria: Looks good to me, but someone else must approve laforge: Looks good to me, approved diff --git a/debian/control b/debian/control index 7c5306c..c746022 100644 --- a/debian/control +++ b/debian/control @@ -28,6 +28,12 @@ Depends: ${misc:Depends}, ${shlibs:Depends} Description: MS-side implementation of L2 and L3 GSM protocols +Package: osmocom-bb-trx-toolkit +Architecture: any +Multi-Arch: foreign +Depends: python3 +Description: Tools for the TRX interface and emulating a virtual Um-interface + Package: osmocom-bb-trxcon Architecture: any Multi-Arch: foreign diff --git a/debian/osmocom-bb-trx-toolkit.install b/debian/osmocom-bb-trx-toolkit.install new file mode 100644 index 0000000..f323b17 --- /dev/null +++ b/debian/osmocom-bb-trx-toolkit.install @@ -0,0 +1 @@ +src/target/trx_toolkit/* /usr/share/osmocom-bb/trx_toolkit -- To view, visit https://gerrit.osmocom.org/c/osmocom-bb/+/39002?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: merged Gerrit-Project: osmocom-bb Gerrit-Branch: master Gerrit-Change-Id: I3d8140991afaf08b6fff0e80d45dd0310c98ea30 Gerrit-Change-Number: 39002 Gerrit-PatchSet: 2 Gerrit-Owner: osmith <osmith(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: osmith <osmith(a)sysmocom.de>

6 months, 3 weeks

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[S] Change in osmocom-bb[master]: debian: add subpackage osmocom-bb-trxcon

by osmith

Attention is currently required from: pespin. osmith has posted comments on this change by osmith. ( https://gerrit.osmocom.org/c/osmocom-bb/+/39000?usp=email ) Change subject: debian: add subpackage osmocom-bb-trxcon ...................................................................... Patch Set 1: (1 comment) Patchset: PS1: > Aren't you missing the . […] not needed thanks to the `dh_auto_install -O-Dsrc/host/$$SUBPKG_DIR --destdir=debian/osmocom-bb-$$SUBPKG/` line -- To view, visit https://gerrit.osmocom.org/c/osmocom-bb/+/39000?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: osmocom-bb Gerrit-Branch: master Gerrit-Change-Id: I548cec7427d70706b1b477c0845234efe6cf825f Gerrit-Change-Number: 39000 Gerrit-PatchSet: 1 Gerrit-Owner: osmith <osmith(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-Attention: pespin <pespin(a)sysmocom.de> Gerrit-Comment-Date: Tue, 03 Dec 2024 10:00:57 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: No Comment-In-Reply-To: pespin <pespin(a)sysmocom.de>

6 months, 3 weeks

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[L] Change in osmo-bsc[master]: ipaccess-config: Use own e1_input ipaccess driver

by pespin

pespin has submitted this change. ( https://gerrit.osmocom.org/c/osmo-bsc/+/39003?usp=email ) Change subject: ipaccess-config: Use own e1_input ipaccess driver ...................................................................... ipaccess-config: Use own e1_input ipaccess driver Since osmo-bsc.git creation from openbsc.git around 10 years ago, a reference was kept in osmo-bsc/ipaccess/ipaccess-config.c to ipa specific code in the ipaccess e1_input stack of libosmo-abis.git (ipaccess_fd_cb()). Back at that time that was already considered to be an ugly hack, as mentioned in include/osmocom/abis/ipaccess.h exporting that function. This was done because ipaccess-config is quite different in several aspects wrt to usual ipaccess based bts/osmo-bsc ipaccess lines: * nanoBTS acts as TCP server and ipaccess-client as TCP client. * TCP port 3006 is used instead of usual OML 3002. * IPA handshake is actually also different, since despite nanoBTS being the server it doesn't really trigger an IPA ID GET which need to answer. Instead, upon ipaccess-config connecting, it will send an IPA ID ACK and wait to receive an IP ID ACK itself before start transmitting OML to ipaccess-config. Due to all those differences, it really makes no sense to keep support for this setup in the more usual bts<->bsc Abis e1line ipaccess driver present in libosmo-abis.git. Instead, this patch adds a new ipaccess-config-e1-driver.c which implements a libosmo-abis e1_input line driver which works for this specific service. libosmo-abis.git src/input/ipaccess.c from Change-Id Idf241c8f2fdb86d090d4132a9b316b7236402232 is used as a base, further simplifying it by removing stuff not really needed like BTS/BSC role, tcp keepalive, tcp socket stats, etc. Related: SYS#7063 Related: OS#5755 Related: OS#5756 Change-Id: I4d26876ce7d75a78f03c4fa66233550baf4fa7d5 --- M src/ipaccess/Makefile.am A src/ipaccess/ipaccess-config-e1-driver.c M src/ipaccess/ipaccess-config.c 3 files changed, 558 insertions(+), 57 deletions(-) Approvals: fixeria: Looks good to me, but someone else must approve laforge: Looks good to me, but someone else must approve Jenkins Builder: Verified pespin: Looks good to me, approved diff --git a/src/ipaccess/Makefile.am b/src/ipaccess/Makefile.am index 9bd648d..52bfed4 100644 --- a/src/ipaccess/Makefile.am +++ b/src/ipaccess/Makefile.am @@ -41,6 +41,7 @@ ipaccess_config_SOURCES = \ ipaccess-config.c \ + ipaccess-config-e1-driver.c \ ipaccess-firmware.c \ network_listen.c \ stubs.c \ diff --git a/src/ipaccess/ipaccess-config-e1-driver.c b/src/ipaccess/ipaccess-config-e1-driver.c new file mode 100644 index 0000000..1303d43 --- /dev/null +++ b/src/ipaccess/ipaccess-config-e1-driver.c @@ -0,0 +1,544 @@ +/* OpenBSC Abis input driver for ip.access */ + +/* (C) 2024 by sysmocom - s.f.m.c. GmbH <info(a)sysmocom.de> + * (C) 2009-2021 by Harald Welte <laforge(a)gnumonks.org> + * (C) 2010 by Holger Hans Peter Freyther + * (C) 2010 by On-Waves + * + * All Rights Reserved + * + * SPDX-License-Identifier: AGPL-3.0+ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + */ + +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <stdbool.h> +#include <errno.h> +#include <netinet/tcp.h> +#include <string.h> +#include <time.h> +#include <fcntl.h> +#include <sys/socket.h> +#include <sys/ioctl.h> +#include <arpa/inet.h> + +#include <osmocom/core/select.h> +#include <osmocom/core/msgb.h> +#include <osmocom/core/macaddr.h> +#include <osmocom/core/logging.h> +#include <osmocom/core/talloc.h> +#include <osmocom/core/socket.h> +#include <osmocom/core/backtrace.h> +#include <osmocom/core/fsm.h> +#include <osmocom/core/signal.h> +#include <osmocom/gsm/tlv.h> +#include <osmocom/gsm/protocol/ipaccess.h> +#include <osmocom/gsm/ipa.h> +#include <osmocom/netif/stream.h> +#include <osmocom/netif/ipa.h> +#include <osmocom/abis/e1_input.h> +#include <osmocom/abis/ipa.h> + +/* default port at BTS for incoming connections */ +#define IPACCESS_BTS_LISTEN_OML_PORT 3006 + +/* global parameters of IPA input driver */ +struct ipaccess_config_proto_pars { + uint8_t dscp; + uint8_t priority; +}; +struct ipaccess_config_pars { + struct ipaccess_config_proto_pars oml; + struct ipaccess_config_proto_pars rsl; + char *connect_addr; +}; +struct ipaccess_config_pars g_e1inp_ipaccess_config_pars; + +static void *tall_ipa_ctx; + +struct ipaccess_line { + bool line_already_initialized; + struct osmo_stream_cli *ipa_cli[NUM_E1_TS]; /* 0=OML, 1+N=TRX_N */ +}; + +static int e1inp_int_snd_event(struct e1inp_ts *ts, struct e1inp_sign_link *link, int evt) +{ + struct input_signal_data isd; + isd.line = ts->line; + isd.ts_nr = ts->num; + isd.link_type = link->type; + isd.trx = link->trx; + isd.tei = link->tei; + isd.sapi = link->sapi; + + /* report further upwards */ + osmo_signal_dispatch(SS_L_INPUT, evt, &isd); + return 0; +} + +static inline struct e1inp_ts *ipaccess_line_ts(struct osmo_fd *bfd, struct e1inp_line *line) +{ + if (bfd->priv_nr == E1INP_SIGN_OML) + return e1inp_line_ipa_oml_ts(line); + else + return e1inp_line_ipa_rsl_ts(line, bfd->priv_nr - E1INP_SIGN_RSL); +} + + +static void _ipaccess_bts_down_cb(struct osmo_stream_cli *cli) +{ + struct e1inp_ts *e1i_ts = osmo_stream_cli_get_data(cli); + struct e1inp_line *line = e1i_ts->line; + + if (line->ops->sign_link_down) + line->ops->sign_link_down(line); +} + +/* See how ts->num is assigned in e1inp_line_create: line->ts[i].num = i+1; +* As per e1inp_line_ipa_oml_ts(), first TS in line (ts->num=1) is OML. +* As per e1inp_line_ipa_rsl_ts(), second TS in line (ts->num>=2) is RSL. +*/ +static inline enum e1inp_sign_type ipaccess_e1i_ts_sign_type(const struct e1inp_ts *e1i_ts) +{ + OSMO_ASSERT(e1i_ts->num != 0); + if (e1i_ts->num == 1) + return E1INP_SIGN_OML; + return E1INP_SIGN_RSL; +} + +static inline unsigned int ipaccess_e1i_ts_trx_nr(const struct e1inp_ts *e1i_ts) +{ + enum e1inp_sign_type sign_type = ipaccess_e1i_ts_sign_type(e1i_ts); + if (sign_type == E1INP_SIGN_OML) + return 0; /* OML uses trx_nr=0 */ + OSMO_ASSERT(sign_type == E1INP_SIGN_RSL); + /* e1i_ts->num >= 2: */ + return e1i_ts->num - 2; +} + +static inline struct osmo_stream_cli *ipaccess_bts_e1i_ts_stream_cli(const struct e1inp_ts *e1i_ts) +{ + OSMO_ASSERT(e1i_ts); + struct ipaccess_line *il = e1i_ts->line->driver_data; + OSMO_ASSERT(il); + struct osmo_stream_cli *cli = il->ipa_cli[e1i_ts->num - 1]; + OSMO_ASSERT(cli); + return cli; +} + +static void ipaccess_close(struct e1inp_sign_link *sign_link) +{ + struct e1inp_ts *e1i_ts = sign_link->ts; + struct osmo_fd *bfd = &e1i_ts->driver.ipaccess.fd; + struct osmo_stream_cli *cli; + + e1inp_int_snd_event(e1i_ts, sign_link, S_L_INP_TEI_DN); + /* the first e1inp_sign_link_destroy call closes the socket. */ + + cli = ipaccess_bts_e1i_ts_stream_cli(e1i_ts); + osmo_stream_cli_close(cli); + bfd->fd = -1; /* Compatibility with older implementations */ +} + +static bool e1i_ts_has_pending_tx_msgs(struct e1inp_ts *e1i_ts) +{ + struct e1inp_sign_link *link; + llist_for_each_entry(link, &e1i_ts->sign.sign_links, list) { + if (!llist_empty(&link->tx_list)) + return true; + } + return false; +} + +static int ipaccess_bts_send_msg(struct e1inp_ts *e1i_ts, + struct e1inp_sign_link *sign_link, + struct osmo_stream_cli *cli, + struct msgb *msg) +{ + switch (sign_link->type) { + case E1INP_SIGN_OML: + case E1INP_SIGN_RSL: + case E1INP_SIGN_OSMO: + break; + default: + msgb_free(msg); + return -EINVAL; + } + + msg->l2h = msg->data; + ipa_prepend_header(msg, sign_link->tei); + + LOGPITS(e1i_ts, DLMI, LOGL_DEBUG, "TX: %s\n", osmo_hexdump(msg->l2h, msgb_l2len(msg))); + osmo_stream_cli_send(cli, msg); + return 0; +} + +/* msg was enqueued in sign_link->tx_list. + * Pop it from that list, submit it to osmo_stream_cli: */ +static int ts_want_write(struct e1inp_ts *e1i_ts) +{ + int rc = 0; + struct osmo_stream_cli *cli = ipaccess_bts_e1i_ts_stream_cli(e1i_ts); + + /* get the next msg for this timeslot */ + while (e1i_ts_has_pending_tx_msgs(e1i_ts)) { + struct e1inp_sign_link *sign_link = NULL; + struct msgb *msg; + msg = e1inp_tx_ts(e1i_ts, &sign_link); + OSMO_ASSERT(msg); + OSMO_ASSERT(sign_link); + rc |= ipaccess_bts_send_msg(e1i_ts, sign_link, cli, msg); + } + return rc; +} + +int ipaccess_bts_handle_ccm(struct ipa_client_conn *link, + struct ipaccess_unit *dev, struct msgb *msg) +{ + struct ipaccess_head *hh = (struct ipaccess_head *) msg->data; + + /* special handling for IPA CCM. */ + if (hh->proto != IPAC_PROTO_IPACCESS) + return 0; + + int ret = 0; + uint8_t *data = msgb_l2(msg); + int len = msgb_l2len(msg); + OSMO_ASSERT(len > 0); + uint8_t msg_type = *data; + /* line might not exist if != bsc||bts */ + + /* ping, pong and acknowledgment cases. */ + ret = ipa_ccm_rcvmsg_bts_base(msg, link->ofd); + if (ret < 0) + goto err; + + /* this is a request for identification from the BSC. */ + if (msg_type == IPAC_MSGT_ID_GET) { + struct msgb *rmsg; + /* The ipaccess_unit dev holds generic identity for the whole + * line, hence no trx_id. Patch ipaccess_unit during call to + * ipa_ccm_make_id_resp_from_req() to identify this TRX: */ + int store_trx_nr = dev->trx_id; + if (link->ofd->priv_nr >= E1INP_SIGN_RSL) + dev->trx_id = link->ofd->priv_nr - E1INP_SIGN_RSL; + else + dev->trx_id = 0; + LOGP(DLINP, LOGL_NOTICE, "received ID_GET for unit ID %u/%u/%u\n", + dev->site_id, dev->bts_id, dev->trx_id); + rmsg = ipa_ccm_make_id_resp_from_req(dev, data + 1, len - 1); + dev->trx_id = store_trx_nr; + if (!rmsg) { + LOGP(DLINP, LOGL_ERROR, "Failed parsing ID_GET message.\n"); + goto err; + } + + ret = ipa_send(link->ofd->fd, rmsg->data, rmsg->len); + if (ret != rmsg->len) { + LOGP(DLINP, LOGL_ERROR, "cannot send ID_RESP message. Reason: %s\n", + strerror(errno)); + msgb_free(rmsg); + goto err; + } + msgb_free(rmsg); + + /* send ID_ACK. */ + ret = ipa_ccm_send_id_ack(link->ofd->fd); + if (ret <= 0) { + LOGP(DLINP, LOGL_ERROR, "cannot send ID_ACK message. Reason: %s\n", + strerror(errno)); + goto err; + } + } + return 1; + +err: + ipa_client_conn_close(link); + return -1; +} + +static struct msgb *ipa_bts_id_ack(void) +{ + struct msgb *nmsg2; + nmsg2 = ipa_msg_alloc(0); + if (!nmsg2) + return NULL; + msgb_v_put(nmsg2, IPAC_MSGT_ID_ACK); + ipa_prepend_header(nmsg2, IPAC_PROTO_IPACCESS); + return nmsg2; +} + +static void update_fd_settings(struct e1inp_line *line, int fd) +{ + int ret; + int val; + + val = 1; + ret = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof(val)); + if (ret < 0) + LOGPIL(line, DLINP, LOGL_ERROR, "Failed to set TCP_NODELAY: %s\n", strerror(errno)); +} + +/* Same as ipaccess_bts_handle_ccm(), but using an osmo_stream_cli as backend + * instead of ipa_client_conn. + * The old ipaccess_bts_handle_ccm() needs to be kept as it's a public API. */ +static int _ipaccess_bts_handle_ccm(struct osmo_stream_cli *cli, + struct ipaccess_unit *dev, struct msgb *msg) +{ + /* special handling for IPA CCM. */ + if (osmo_ipa_msgb_cb_proto(msg) != IPAC_PROTO_IPACCESS) + return 0; + + int ret = 0; + const uint8_t *data = msgb_l2(msg); + int len = msgb_l2len(msg); + OSMO_ASSERT(len > 0); + uint8_t msg_type = *data; + struct e1inp_ts *e1i_ts = osmo_stream_cli_get_data(cli); + /* line might not exist if != bsc||bts */ + + /* ping, pong and acknowledgment cases. */ + struct osmo_fd tmp_ofd = { .fd = osmo_stream_cli_get_fd(cli) }; + OSMO_ASSERT(tmp_ofd.fd >= 0); + ret = ipa_ccm_rcvmsg_bts_base(msg, &tmp_ofd); + if (ret < 0) + goto err; + + /* this is a request for identification from the BSC. */ + if (msg_type == IPAC_MSGT_ID_GET) { + struct msgb *rmsg; + /* The ipaccess_unit dev holds generic identity for the whole + * line, hence no trx_id. Patch ipaccess_unit during call to + * ipa_ccm_make_id_resp_from_req() to identify this TRX: */ + int store_trx_nr = dev->trx_id; + dev->trx_id = ipaccess_e1i_ts_trx_nr(e1i_ts); + LOGP(DLINP, LOGL_NOTICE, "received ID_GET for unit ID %u/%u/%u\n", + dev->site_id, dev->bts_id, dev->trx_id); + rmsg = ipa_ccm_make_id_resp_from_req(dev, data + 1, len - 1); + dev->trx_id = store_trx_nr; + if (!rmsg) { + LOGP(DLINP, LOGL_ERROR, "Failed parsing ID_GET message.\n"); + goto err; + } + osmo_stream_cli_send(cli, rmsg); + + /* send ID_ACK. */ + rmsg = ipa_bts_id_ack(); + if (!rmsg) { + LOGP(DLINP, LOGL_ERROR, "Failed allocating ID_ACK message.\n"); + goto err; + } + osmo_stream_cli_send(cli, rmsg); + } + return 1; + +err: + return -1; +} + +static int ipaccess_bts_read_cb(struct osmo_stream_cli *cli, int res, struct msgb *msg) +{ + enum ipaccess_proto ipa_proto = osmo_ipa_msgb_cb_proto(msg); + struct e1inp_ts *e1i_ts = osmo_stream_cli_get_data(cli); + struct e1inp_line *line = e1i_ts->line; + struct e1inp_sign_link *sign_link; + int ret; + + if (res <= 0) { + LOGPITS(e1i_ts, DLINP, LOGL_NOTICE, "failed reading from socket: %d\n", res); + goto err; + } + + /* special handling for IPA CCM. */ + if (ipa_proto == IPAC_PROTO_IPACCESS) { + uint8_t msg_type = *(msg->l2h); + /* this is a request for identification from the BSC. */ + if (msg_type == IPAC_MSGT_ID_GET) { + if (!line->ops->sign_link_up) { + LOGPITS(e1i_ts, DLINP, LOGL_NOTICE, + "Unable to set signal link, closing socket.\n"); + goto err; + } + } + } + + /* core CCM handling */ + ret = _ipaccess_bts_handle_ccm(cli, line->ops->cfg.ipa.dev, msg); + if (ret < 0) + goto err; + + if (ret == 1 && ipa_proto == IPAC_PROTO_IPACCESS) { + uint8_t msg_type = *(msg->l2h); + if (msg_type == IPAC_MSGT_ID_GET) { + enum e1inp_sign_type sign_type = ipaccess_e1i_ts_sign_type(e1i_ts); + unsigned int trx_nr = ipaccess_e1i_ts_trx_nr(e1i_ts); + sign_link = line->ops->sign_link_up(line->ops->cfg.ipa.dev, + line, sign_type + trx_nr); + if (sign_link == NULL) { + LOGPITS(e1i_ts, DLINP, LOGL_NOTICE, + "Unable to set signal link, closing socket.\n"); + goto err; + } + } + msgb_free(msg); + return ret; + } + + /* look up for some existing signaling link. */ + sign_link = e1inp_lookup_sign_link(e1i_ts, ipa_proto, 0); + if (sign_link == NULL) { + LOGPITS(e1i_ts, DLINP, LOGL_ERROR, "no matching signalling link for " + "ipa_proto=0x%02x\n", ipa_proto); + goto err; + } + msg->dst = sign_link; + + /* XXX better use e1inp_ts_rx? */ + if (!line->ops->sign_link) { + LOGPITS(e1i_ts, DLINP, LOGL_ERROR, "Fix your application, " + "no action set for signalling messages.\n"); + goto err; + } + return line->ops->sign_link(msg); + +err: + msgb_free(msg); + osmo_stream_cli_close(cli); + return -EBADF; +} + +static int ipaccess_bts_connect_cb(struct osmo_stream_cli *cli) +{ + struct e1inp_ts *e1i_ts = osmo_stream_cli_get_data(cli); + struct e1inp_line *line = e1i_ts->line; + struct msgb *rmsg; + + update_fd_settings(line, osmo_stream_cli_get_fd(cli)); + + /* send ID_ACK. */ + rmsg = ipa_bts_id_ack(); + if (!rmsg) { + LOGP(DLINP, LOGL_ERROR, "Failed allocating ID_ACK message.\n"); + return 0; + } + osmo_stream_cli_send(cli, rmsg); + return 0; +} + +static int ipaccess_bts_disconnect_cb(struct osmo_stream_cli *cli) +{ + _ipaccess_bts_down_cb(cli); + return 0; +} + +static int ipaccess_line_update(struct e1inp_line *line) +{ + int ret = -ENOENT; + struct ipaccess_line *il; + + if (!line->driver_data) + line->driver_data = talloc_zero(line, struct ipaccess_line); + + if (!line->driver_data) { + LOGPIL(line, DLINP, LOGL_ERROR, "ipaccess: OOM in line update\n"); + return -ENOMEM; + } + il = line->driver_data; + + /* We only initialize this line once. */ + if (il->line_already_initialized) + return 0; + + struct osmo_stream_cli *cli; + struct e1inp_ts *e1i_ts = e1inp_line_ipa_oml_ts(line); + char cli_name[128]; + + LOGPITS(e1i_ts, DLINP, LOGL_NOTICE, "enabling ipaccess BTS mode, " + "OML connecting to %s:%u\n", g_e1inp_ipaccess_config_pars.connect_addr, IPACCESS_BTS_LISTEN_OML_PORT); + + /* Drop previous line */ + if (il->ipa_cli[0]) { + osmo_stream_cli_close(il->ipa_cli[0]); + e1i_ts->driver.ipaccess.fd.fd = -1; + osmo_stream_cli_destroy(il->ipa_cli[0]); + il->ipa_cli[0] = NULL; + } + + e1inp_ts_config_sign(e1i_ts, line); + + cli = osmo_stream_cli_create(tall_ipa_ctx); + OSMO_ASSERT(cli); + + snprintf(cli_name, sizeof(cli_name), "ts-%u-%u-oml", line->num, e1i_ts->num); + osmo_stream_cli_set_name(cli, cli_name); + osmo_stream_cli_set_data(cli, e1i_ts); + osmo_stream_cli_set_addr(cli, g_e1inp_ipaccess_config_pars.connect_addr); + osmo_stream_cli_set_port(cli, IPACCESS_BTS_LISTEN_OML_PORT); + osmo_stream_cli_set_proto(cli, IPPROTO_TCP); + osmo_stream_cli_set_nodelay(cli, true); + osmo_stream_cli_set_priority(cli, g_e1inp_ipaccess_config_pars.oml.dscp); + osmo_stream_cli_set_ip_dscp(cli, g_e1inp_ipaccess_config_pars.oml.priority); + + /* Reconnect is handled by upper layers: */ + osmo_stream_cli_set_reconnect_timeout(cli, -1); + + osmo_stream_cli_set_segmentation_cb(cli, osmo_ipa_segmentation_cb); + osmo_stream_cli_set_connect_cb(cli, ipaccess_bts_connect_cb); + osmo_stream_cli_set_disconnect_cb(cli, ipaccess_bts_disconnect_cb); + osmo_stream_cli_set_read_cb2(cli, ipaccess_bts_read_cb); + + if (osmo_stream_cli_open(cli)) { + LOGPITS(e1i_ts, DLINP, LOGL_ERROR, "cannot open OML BTS link: %s\n", strerror(errno)); + osmo_stream_cli_destroy(cli); + return -EIO; + } + + /* Compatibility with older ofd based implementation. osmo-bts accesses + * this fd directly in get_signlink_remote_ip() and get_rsl_local_ip() */ + e1i_ts->driver.ipaccess.fd.fd = osmo_stream_cli_get_fd(cli); + + il->ipa_cli[0] = cli; + ret = 0; + + il->line_already_initialized = true; + return ret; +} + +static struct e1inp_driver ipaccess_config_driver = { + .name = "ipaccess-config", + .want_write = ts_want_write, + .line_update = ipaccess_line_update, + .close = ipaccess_close, + .default_delay = 0, + .has_keepalive = 0, +}; + +void e1inp_ipaccess_config_init(void *ctx) +{ + tall_ipa_ctx = talloc_named_const(ctx, 1, "ipaccess-config"); + e1inp_driver_register(&ipaccess_config_driver); + + g_e1inp_ipaccess_config_pars.connect_addr = talloc_strdup(tall_ipa_ctx, "127.0.0.1"); +} + +void e1inp_ipaccess_config_set_connect_addr(const char *connect_addr) +{ + osmo_talloc_replace_string(tall_ipa_ctx, + &g_e1inp_ipaccess_config_pars.connect_addr, + connect_addr); +} diff --git a/src/ipaccess/ipaccess-config.c b/src/ipaccess/ipaccess-config.c index 15dcc54..a576ebc 100644 --- a/src/ipaccess/ipaccess-config.c +++ b/src/ipaccess/ipaccess-config.c @@ -79,53 +79,15 @@ static struct abis_nm_sw_desc *sw_load1 = NULL; static struct abis_nm_sw_desc *sw_load2 = NULL; -extern int ipaccess_fd_cb(struct osmo_fd *bfd, unsigned int what); extern struct e1inp_line_ops ipaccess_e1inp_line_ops; -/* Actively connect to a BTS. Currently used by ipaccess-config.c */ -static int ipaccess_connect(struct e1inp_line *line, struct sockaddr_in *sa) -{ - struct e1inp_ts *e1i_ts = &line->ts[0]; - struct osmo_fd *bfd = &e1i_ts->driver.ipaccess.fd; - int ret, on = 1; +/* Functions from ipaccess-config-e1-driver.c: */ +extern void e1inp_ipaccess_config_init(void *ctx); +extern void e1inp_ipaccess_config_set_connect_addr(const char *connect_addr); - bfd->fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); - bfd->cb = ipaccess_fd_cb; - bfd->when = OSMO_FD_READ | OSMO_FD_WRITE; - bfd->data = line; - bfd->priv_nr = E1INP_SIGN_OML; - - if (bfd->fd < 0) { - LOGP(DLINP, LOGL_ERROR, "could not create TCP socket.\n"); - return -EIO; - } - - ret = setsockopt(bfd->fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)); - if (ret < 0) { - LOGP(DLINP, LOGL_ERROR, "could not set socket option\n"); - close(bfd->fd); - return -EIO; - } - - ret = connect(bfd->fd, (struct sockaddr *) sa, sizeof(*sa)); - if (ret < 0) { - LOGP(DLINP, LOGL_ERROR, "could not connect socket\n"); - close(bfd->fd); - return ret; - } - - ret = osmo_fd_register(bfd); - if (ret < 0) { - LOGP(DLINP, LOGL_ERROR, "unable to register socket fd\n"); - close(bfd->fd); - return ret; - } - return ret; - //return e1inp_line_register(line); -} /* configure pseudo E1 line in ip.access style and connect to BTS */ -static int ia_config_connect(struct gsm_bts *bts, struct sockaddr_in *sin) +static int ia_config_connect(struct gsm_bts *bts, const char *bts_ip) { struct e1inp_line *line; struct e1inp_ts *sign_ts, *rsl_ts; @@ -135,13 +97,17 @@ if (!line) return -ENOMEM; - line->driver = e1inp_driver_find("ipa"); - if (!line->driver) { - fprintf(stderr, "cannot `ipa' driver, giving up.\n"); + e1inp_ipaccess_config_init(tall_bsc_ctx); + e1inp_ipaccess_config_set_connect_addr(bts_ip); + + line = e1inp_line_create(0, "ipaccess-config"); + if (!line) { + fprintf(stderr, "cannot create line with `ipaccess-config' driver, giving up.\n"); return -EINVAL; } e1inp_line_bind_ops(line, &ipaccess_e1inp_line_ops); e1_set_pcap_fd2(line, -1); /* Disable writing to pcap */ + e1inp_line_update(line); sign_ts = e1inp_line_ipa_oml_ts(line); rsl_ts = e1inp_line_ipa_rsl_ts(line, 0); @@ -164,11 +130,7 @@ bts->osmo_link = osmo_link; bts->c0->rsl_link_primary = rsl_link; - /* default port at BTS for incoming connections is 3006 */ - if (sin->sin_port == 0) - sin->sin_port = htons(3006); - - return ipaccess_connect(line, sin); + return 0; } /* @@ -1030,7 +992,6 @@ int main(int argc, char **argv) { struct gsm_bts *bts; - struct sockaddr_in sin; char *bts_ip; int rc, option_index = 0, stream_id = 0xff; @@ -1203,17 +1164,12 @@ if (!quiet) printf("Trying to connect to ip.access BTS %s...\n", bts_ip); - memset(&sin, 0, sizeof(sin)); - sin.sin_family = AF_INET; - inet_aton(bts_ip, &sin.sin_addr); - rc = ia_config_connect(bts, &sin); + rc = ia_config_connect(bts, bts_ip); if (rc < 0) { perror("Error connecting to the BTS"); exit(1); } - bts->oml_link->ts->sign.delay = 10; - bts->c0->rsl_link_primary->ts->sign.delay = 10; while (1) { rc = osmo_select_main(0); if (rc < 0) -- To view, visit https://gerrit.osmocom.org/c/osmo-bsc/+/39003?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: merged Gerrit-Project: osmo-bsc Gerrit-Branch: master Gerrit-Change-Id: I4d26876ce7d75a78f03c4fa66233550baf4fa7d5 Gerrit-Change-Number: 39003 Gerrit-PatchSet: 4 Gerrit-Owner: pespin <pespin(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: daniel <dwillmann(a)sysmocom.de> Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: osmith <osmith(a)sysmocom.de> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de>

6 months, 3 weeks

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[L] Change in osmo-bsc[master]: ipaccess-config: Use own e1_input ipaccess driver

by pespin

Attention is currently required from: daniel, laforge, osmith. pespin has posted comments on this change by pespin. ( https://gerrit.osmocom.org/c/osmo-bsc/+/39003?usp=email ) Change subject: ipaccess-config: Use own e1_input ipaccess driver ...................................................................... Patch Set 4: Code-Review+2 (1 comment) Patchset: PS4: > LGTM. […] Yes, worked just fine. -- To view, visit https://gerrit.osmocom.org/c/osmo-bsc/+/39003?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: osmo-bsc Gerrit-Branch: master Gerrit-Change-Id: I4d26876ce7d75a78f03c4fa66233550baf4fa7d5 Gerrit-Change-Number: 39003 Gerrit-PatchSet: 4 Gerrit-Owner: pespin <pespin(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: daniel <dwillmann(a)sysmocom.de> Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: osmith <osmith(a)sysmocom.de> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-Attention: osmith <osmith(a)sysmocom.de> Gerrit-Attention: laforge <laforge(a)osmocom.org> Gerrit-Attention: daniel <dwillmann(a)sysmocom.de> Gerrit-Comment-Date: Mon, 02 Dec 2024 22:50:12 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: Yes Comment-In-Reply-To: laforge <laforge(a)osmocom.org>

6 months, 3 weeks

1
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[S] Change in pysim[master]: Modem related fixes.

by laforge

Attention is currently required from: JPM, dexter, fixeria. laforge has posted comments on this change by JPM. ( https://gerrit.osmocom.org/c/pysim/+/38993?usp=email ) Change subject: Modem related fixes. ...................................................................... Patch Set 1: Code-Review+1 (1 comment) Patchset: PS1: I think in order to really maintain those changes and ensure interoperability for this CSIm driver, we'd need some kind of physical CI setup with Modems. currently we only have pcsc readers. I don't think it would be a good use of our limited R&D resources unless there were customers with support contract requiring this feature. -- To view, visit https://gerrit.osmocom.org/c/pysim/+/38993?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: pysim Gerrit-Branch: master Gerrit-Change-Id: I3e45603a13496fff41b9f859de486143252fb28d Gerrit-Change-Number: 38993 Gerrit-PatchSet: 1 Gerrit-Owner: JPM <jean-pierre.marcotte.1(a)ens.etsmtl.ca> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: dexter <pmaier(a)sysmocom.de> Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Attention: JPM <jean-pierre.marcotte.1(a)ens.etsmtl.ca> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Attention: dexter <pmaier(a)sysmocom.de> Gerrit-Comment-Date: Mon, 02 Dec 2024 22:06:34 +0000 Gerrit-HasComments: Yes Gerrit-Has-Labels: Yes

6 months, 3 weeks

1
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0 0

[XS] Change in osmo-ci[master]: jobs/master: add osmocom-android-binaries

by laforge

Attention is currently required from: dexter, fixeria, osmith. laforge has posted comments on this change by osmith. ( https://gerrit.osmocom.org/c/osmo-ci/+/38984?usp=email ) Change subject: jobs/master: add osmocom-android-binaries ...................................................................... Patch Set 1: Code-Review+1 -- To view, visit https://gerrit.osmocom.org/c/osmo-ci/+/38984?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings?usp=email Gerrit-MessageType: comment Gerrit-Project: osmo-ci Gerrit-Branch: master Gerrit-Change-Id: I9153fd60ed6cea150096c0e462284bc7f9605beb Gerrit-Change-Number: 38984 Gerrit-PatchSet: 1 Gerrit-Owner: osmith <osmith(a)sysmocom.de> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: dexter <pmaier(a)sysmocom.de> Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Reviewer: laforge <laforge(a)osmocom.org> Gerrit-Reviewer: pespin <pespin(a)sysmocom.de> Gerrit-Attention: osmith <osmith(a)sysmocom.de> Gerrit-Attention: fixeria <vyanitskiy(a)sysmocom.de> Gerrit-Attention: dexter <pmaier(a)sysmocom.de> Gerrit-Comment-Date: Mon, 02 Dec 2024 22:01:16 +0000 Gerrit-HasComments: No Gerrit-Has-Labels: Yes

6 months, 3 weeks

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gerrit-log December 2024