OpenBSC February 2016

openbsc@lists.osmocom.org

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86 discussions

[PATCH] Add byte printing macros
by msuraev＠sysmocom.de 24 Feb '16

24 Feb '16

From: Max <msuraev(a)sysmocom.de> It's sometimes handy for debugging to be able to immediately see which bits are set in a given byte. Generalize macro used for that in bitvec tests and make it available for the rest of the library. --- include/osmocom/core/bits.h | 21 +++++++++++++++++++++ tests/bitvec/bitvec_test.c | 13 +------------ 2 files changed, 22 insertions(+), 12 deletions(-) diff --git a/include/osmocom/core/bits.h b/include/osmocom/core/bits.h index 1587b05..46f0c8b 100644 --- a/include/osmocom/core/bits.h +++ b/include/osmocom/core/bits.h @@ -50,6 +50,27 @@ int osmo_pbit2ubit_ext(ubit_t *out, unsigned int out_ofs, const pbit_t *in, unsigned int in_ofs, unsigned int num_bits, int lsb_mode); +#define OSMO_BIN_SPEC "%d%d%d%d%d%d%d%d" +#define OSMO_BIN_PRINT(byte) \ + (byte & 0x80 ? 1 : 0), \ + (byte & 0x40 ? 1 : 0), \ + (byte & 0x20 ? 1 : 0), \ + (byte & 0x10 ? 1 : 0), \ + (byte & 0x08 ? 1 : 0), \ + (byte & 0x04 ? 1 : 0), \ + (byte & 0x02 ? 1 : 0), \ + (byte & 0x01 ? 1 : 0) + +#define OSMO_BIT_SPEC "%c%c%c%c%c%c%c%c" +#define OSMO_BIT_PRINT(byte) \ + (byte & 0x80 ? '1' : '.'), \ + (byte & 0x40 ? '1' : '.'), \ + (byte & 0x20 ? '1' : '.'), \ + (byte & 0x10 ? '1' : '.'), \ + (byte & 0x08 ? '1' : '.'), \ + (byte & 0x04 ? '1' : '.'), \ + (byte & 0x02 ? '1' : '.'), \ + (byte & 0x01 ? '1' : '.') /* BIT REVERSAL */ diff --git a/tests/bitvec/bitvec_test.c b/tests/bitvec/bitvec_test.c index 800a040..76d6773 100644 --- a/tests/bitvec/bitvec_test.c +++ b/tests/bitvec/bitvec_test.c @@ -11,17 +11,6 @@ #include <osmocom/core/bitvec.h> #include <osmocom/core/bits.h> -#define BIN_PATTERN "%d%d%d%d%d%d%d%d" -#define BIN(byte) \ - (byte & 0x80 ? 1 : 0), \ - (byte & 0x40 ? 1 : 0), \ - (byte & 0x20 ? 1 : 0), \ - (byte & 0x10 ? 1 : 0), \ - (byte & 0x08 ? 1 : 0), \ - (byte & 0x04 ? 1 : 0), \ - (byte & 0x02 ? 1 : 0), \ - (byte & 0x01 ? 1 : 0) - static char lol[1024]; // we pollute this with printed vectors static inline void test_rl(const struct bitvec *bv) { @@ -45,7 +34,7 @@ static inline void test_get(struct bitvec *bv, unsigned n) int16_t x = bitvec_get_int16_msb(bv, n); uint8_t tmp[2]; osmo_store16be(x, &tmp); - printf(" -> %d (%u bit) ["BIN_PATTERN" "BIN_PATTERN"]:\n", x, n, BIN(tmp[0]), BIN(tmp[1])); + printf(" -> %d (%u bit) ["OSMO_BIN_SPEC" "OSMO_BIN_SPEC"]:\n", x, n, OSMO_BIN_PRINT(tmp[0]), OSMO_BIN_PRINT(tmp[1])); bitvec_to_string_r(bv, lol); printf("%s [%d]\n", lol, bv->cur_bit); } -- 2.7.1

1 0

[PATCH 2/3] add bind address parameter to ctrl_interface_setup()
by Neels Hofmeyr 24 Feb '16

24 Feb '16

Make the ctrl interface bind address configurable, so that it may be made available on other addresses than 127.0.0.1. The specific aim is to allow running multiple osmo-nitbs alongside each other (commits in openbsc follow). --- include/osmocom/ctrl/control_if.h | 4 ++-- src/ctrl/control_if.c | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/include/osmocom/ctrl/control_if.h b/include/osmocom/ctrl/control_if.h index 00caacc..2f327c1 100644 --- a/include/osmocom/ctrl/control_if.h +++ b/include/osmocom/ctrl/control_if.h @@ -20,7 +20,7 @@ struct ctrl_handle { int ctrl_cmd_send(struct osmo_wqueue *queue, struct ctrl_cmd *cmd); -struct ctrl_handle *ctrl_interface_setup(void *data, uint16_t port, - ctrl_cmd_lookup lookup); +struct ctrl_handle *ctrl_interface_setup(void *data, const char *bind_addr, + uint16_t port, ctrl_cmd_lookup lookup); int ctrl_cmd_handle(struct ctrl_handle *ctrl, struct ctrl_cmd *cmd, void *data); diff --git a/src/ctrl/control_if.c b/src/ctrl/control_if.c index 18e695d..74c84c9 100644 --- a/src/ctrl/control_if.c +++ b/src/ctrl/control_if.c @@ -670,8 +670,8 @@ static int verify_counter(struct ctrl_cmd *cmd, const char *value, void *data) return 0; } -struct ctrl_handle *ctrl_interface_setup(void *data, uint16_t port, - ctrl_cmd_lookup lookup) +struct ctrl_handle *ctrl_interface_setup(void *data, const char *bind_addr, + uint16_t port, ctrl_cmd_lookup lookup) { int ret; struct ctrl_handle *ctrl; @@ -693,7 +693,7 @@ struct ctrl_handle *ctrl_interface_setup(void *data, uint16_t port, ctrl->listen_fd.cb = listen_fd_cb; ctrl->listen_fd.data = ctrl; ret = osmo_sock_init_ofd(&ctrl->listen_fd, AF_INET, SOCK_STREAM, IPPROTO_TCP, - "127.0.0.1", port, OSMO_SOCK_F_BIND); + bind_addr, port, OSMO_SOCK_F_BIND); if (ret < 0) goto err_vec; -- 2.1.4

2 2

[PATCH 1/3] vty: add bind command for telnet vty line
by Neels Hofmeyr 24 Feb '16

24 Feb '16

Add VTY command line vty bind A.B.C.D The command merely stores the configured IP-address, which can then be used by the calling main program to set the telnet port of the VTY line. (Commits in openbsc and osmo-iuh will follow up on this.) Add function vty_get_bind_addr() to publish the address in the vty.h API. Add static vty_bind_addr to store. For allocation/freeing reasons, a NULL address defaults to 127.0.0.1. BTW, I decided against allowing keywords 'any' and 'localhost' in place of an actual IP address to make sure a written config is always identical to the parsed config. --- include/osmocom/vty/vty.h | 3 +++ src/vty/vty.c | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 35 insertions(+) diff --git a/include/osmocom/vty/vty.h b/include/osmocom/vty/vty.h index 3684397..43cb0cf 100644 --- a/include/osmocom/vty/vty.h +++ b/include/osmocom/vty/vty.h @@ -186,6 +186,9 @@ void *vty_current_index(struct vty *); int vty_current_node(struct vty *vty); int vty_go_parent(struct vty *vty); +/* Return IP address passed to the 'line vty'/'bind' command, or "127.0.0.1" */ +const char *vty_get_bind_addr(void); + extern void *tall_vty_ctx; extern struct cmd_element cfg_description_cmd; diff --git a/src/vty/vty.c b/src/vty/vty.c index 5bcbe4a..7e27d7e 100644 --- a/src/vty/vty.c +++ b/src/vty/vty.c @@ -75,6 +75,10 @@ vector Vvty_serv_thread; char *vty_cwd = NULL; +/* IP address passed to the 'line vty'/'bind' command */ +static const char *vty_bind_addr = NULL; +#define VTY_BIND_ADDR_DEFAULT "127.0.0.1" + /* Configure lock. */ static int vty_config; @@ -1585,6 +1589,29 @@ DEFUN(no_vty_login, return CMD_SUCCESS; } +/* vty bind */ +DEFUN(vty_bind, vty_bind_cmd, "bind A.B.C.D", + "Accept VTY telnet connections on local interface\n" + "Local interface IP address (default: " VTY_BIND_ADDR_DEFAULT ")\n") +{ + /* Avoid (small) mem leak: initially, vty_bind_addr is NULL. Whenever + * this gets called, it is set to a strdup. So whenever it is non-NULL, + * free it first. See also vty_get_bind_addr() for the NULL default. */ + if (vty_bind_addr) { + talloc_free((void*)vty_bind_addr); + vty_bind_addr = NULL; + } + vty_bind_addr = talloc_strdup(tall_vty_ctx, argv[0]); + return CMD_SUCCESS; +} + +const char *vty_get_bind_addr(void) +{ + if (!vty_bind_addr) + return VTY_BIND_ADDR_DEFAULT; + return vty_bind_addr; +} + DEFUN(service_advanced_vty, service_advanced_vty_cmd, "service advanced-vty", @@ -1654,6 +1681,10 @@ static int vty_config_write(struct vty *vty) if (!password_check) vty_out(vty, " no login%s", VTY_NEWLINE); + /* bind */ + if (vty_bind_addr) + vty_out(vty, " bind %s%s", vty_bind_addr, VTY_NEWLINE); + vty_out(vty, "!%s", VTY_NEWLINE); return CMD_SUCCESS; @@ -1757,6 +1788,7 @@ void vty_init(struct vty_app_info *app_info) vty_install_default(VTY_NODE); install_element(VTY_NODE, &vty_login_cmd); install_element(VTY_NODE, &no_vty_login_cmd); + install_element(VTY_NODE, &vty_bind_cmd); } /*! \brief Read the configuration file using the VTY code -- 2.1.4

2 2

[PATCH] Refactor coding scheme assignment code
by msuraev＠sysmocom.de 24 Feb '16

24 Feb '16

From: Max <msuraev(a)sysmocom.de> Previously this code used too much copy-paste of boilerplate code which is error-prone and hard to read. Factor out actual (M)CS assignment into separate function and use it for both DL and UL cases in respective mode. Fixes: Coverity: CID 1351733 --- src/gprs_ms.cpp | 65 +++++++++++++++++++++++++++++---------------------------- 1 file changed, 33 insertions(+), 32 deletions(-) diff --git a/src/gprs_ms.cpp b/src/gprs_ms.cpp index 78f03f8..c10c735 100644 --- a/src/gprs_ms.cpp +++ b/src/gprs_ms.cpp @@ -209,45 +209,46 @@ void GprsMs::stop_timer() unref(); } +inline static GprsCodingScheme assign_cs(GprsCodingScheme current, BTS *bts, bool uplink, GprsCodingScheme::Mode mode) +{ + GprsCodingScheme tmp = GprsCodingScheme::UNKNOWN; + struct gprs_rlcmac_bts * b = bts->bts_data(); + + if (GprsCodingScheme::GPRS == mode) { + if (!current.isGprs()) { + tmp = GprsCodingScheme::getGprsByNum(uplink ? b->initial_cs_ul : b->initial_cs_dl); + if (!tmp.isValid()) + return GprsCodingScheme::CS1; + } + } else { + if (!current.isEgprs()) { + tmp = GprsCodingScheme::getEgprsByNum(uplink ? b->initial_mcs_ul : b->initial_mcs_dl); + if (!tmp.isValid()) + return GprsCodingScheme::MCS1; + } + } + + return tmp; +} + void GprsMs::set_mode(GprsCodingScheme::Mode mode) { + GprsCodingScheme tmp; m_mode = mode; if (!m_bts) return; - switch (m_mode) { - case GprsCodingScheme::GPRS: - if (!m_current_cs_ul.isGprs()) { - m_current_cs_ul = GprsCodingScheme::getGprsByNum( - m_bts->bts_data()->initial_cs_ul); - if (!m_current_cs_ul.isValid()) - m_current_cs_ul = GprsCodingScheme::CS1; - } - if (!m_current_cs_dl.isGprs()) { - m_current_cs_dl = GprsCodingScheme::getGprsByNum( - m_bts->bts_data()->initial_cs_dl); - if (!m_current_cs_dl.isValid()) - m_current_cs_dl = GprsCodingScheme::CS1; - } - break; - - case GprsCodingScheme::EGPRS_GMSK: - case GprsCodingScheme::EGPRS: - if (!m_current_cs_ul.isEgprs()) { - m_current_cs_ul = GprsCodingScheme::getEgprsByNum( - m_bts->bts_data()->initial_mcs_ul); - if (!m_current_cs_dl.isValid()) - m_current_cs_ul = GprsCodingScheme::MCS1; - } - if (!m_current_cs_dl.isEgprs()) { - m_current_cs_dl = GprsCodingScheme::getEgprsByNum( - m_bts->bts_data()->initial_mcs_dl); - if (!m_current_cs_dl.isValid()) - m_current_cs_dl = GprsCodingScheme::MCS1; - } - break; - } + tmp = assign_cs(m_current_cs_ul, m_bts, true, mode); + if (tmp) + m_current_cs_ul = tmp; + + tmp = assign_cs(m_current_cs_dl, m_bts, false, mode); + if (tmp) + m_current_cs_dl = tmp; + + LOGP(DRLCMAC, LOGL_DEBUG, "MS IMSI=%s mode set to %s: UL=%s, DL=%s\n", + imsi(), tmp.modeName(mode), m_current_cs_ul.name(), m_current_cs_dl.name()); } void GprsMs::attach_tbf(struct gprs_rlcmac_tbf *tbf) -- 2.7.1

1 0

[PATCH 6/6] bsc_nat: fail if VTY telnet port cannot be bound
by Neels Hofmeyr 24 Feb '16

24 Feb '16

--- openbsc/src/osmo-bsc_nat/bsc_nat.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat.c b/openbsc/src/osmo-bsc_nat/bsc_nat.c index 8404e41..cdab406 100644 --- a/openbsc/src/osmo-bsc_nat/bsc_nat.c +++ b/openbsc/src/osmo-bsc_nat/bsc_nat.c @@ -1638,10 +1638,13 @@ int main(int argc, char **argv) /* start telnet after reading config for vty_get_bind_addr() */ LOGP(DNAT, LOGL_NOTICE, "VTY at %s %d\n", vty_get_bind_addr(), OSMO_VTY_PORT_BSC_NAT); - telnet_init_dynif(tall_bsc_ctx, NULL, vty_get_bind_addr(), - OSMO_VTY_PORT_BSC_NAT); + if (telnet_init_dynif(tall_bsc_ctx, NULL, vty_get_bind_addr(), + OSMO_VTY_PORT_BSC_NAT)) { + fprintf(stderr, "Creating VTY telnet line failed\n"); + return -5; + } - /* over rule the VTY config */ + /* over rule the VTY config for MSC IP */ if (msc_ip) bsc_nat_set_msc_ip(nat, msc_ip); -- 2.1.4

1 0

[PATCH 5/6] enable ctrl bind config for various programs
by Neels Hofmeyr 24 Feb '16

24 Feb '16

Add ctrl_vty_init() calls and feed the ctrl_vty_get_bind_addr() return value to ctrl_interface_setup() in the following programs: osmo-bsc osmo-bsc_nat osmo-nitb osmo-sgsn For osmo-sgsn, move the control interface setup invocation below the config parsing, so that the ctrl_vty_get_bind_addr() can return the configured address. --- openbsc/include/openbsc/bsc_nat.h | 3 ++- openbsc/include/openbsc/ctrl.h | 3 ++- openbsc/include/openbsc/gprs_sgsn.h | 3 ++- openbsc/src/gprs/sgsn_ctrl.c | 5 +++-- openbsc/src/gprs/sgsn_main.c | 31 ++++++++++++++++++++----------- openbsc/src/libbsc/bsc_ctrl_lookup.c | 6 ++++-- openbsc/src/osmo-bsc/osmo_bsc_main.c | 10 +++++++++- openbsc/src/osmo-bsc_nat/bsc_nat.c | 9 ++++++++- openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c | 5 +++-- openbsc/src/osmo-nitb/bsc_hack.c | 10 +++++++++- 10 files changed, 62 insertions(+), 23 deletions(-) diff --git a/openbsc/include/openbsc/bsc_nat.h b/openbsc/include/openbsc/bsc_nat.h index 027b6de..309adb1 100644 --- a/openbsc/include/openbsc/bsc_nat.h +++ b/openbsc/include/openbsc/bsc_nat.h @@ -423,7 +423,8 @@ void bsc_nat_num_rewr_entry_adapt(void *ctx, struct llist_head *head, const stru void bsc_nat_send_mgcp_to_msc(struct bsc_nat *bsc_nat, struct msgb *msg); void bsc_nat_handle_mgcp(struct bsc_nat *bsc, struct msgb *msg); -struct ctrl_handle *bsc_nat_controlif_setup(struct bsc_nat *nat, int port); +struct ctrl_handle *bsc_nat_controlif_setup(struct bsc_nat *nat, + const char *bind_addr, int port); void bsc_nat_ctrl_del_pending(struct bsc_cmd_list *pending); int bsc_nat_handle_ctrlif_msg(struct bsc_connection *bsc, struct msgb *msg); diff --git a/openbsc/include/openbsc/ctrl.h b/openbsc/include/openbsc/ctrl.h index 38fa054..c5ac210 100644 --- a/openbsc/include/openbsc/ctrl.h +++ b/openbsc/include/openbsc/ctrl.h @@ -1,3 +1,4 @@ #pragma once -struct ctrl_handle *bsc_controlif_setup(struct gsm_network *net, uint16_t port); +struct ctrl_handle *bsc_controlif_setup(struct gsm_network *net, + const char *bind_addr, uint16_t port); diff --git a/openbsc/include/openbsc/gprs_sgsn.h b/openbsc/include/openbsc/gprs_sgsn.h index 74f0735..49d5407 100644 --- a/openbsc/include/openbsc/gprs_sgsn.h +++ b/openbsc/include/openbsc/gprs_sgsn.h @@ -315,7 +315,8 @@ int sgsn_force_reattach_oldmsg(struct msgb *oldmsg); * ctrl interface related work */ struct gsm_network; -struct ctrl_handle *sgsn_controlif_setup(struct gsm_network *, uint16_t port); +struct ctrl_handle *sgsn_controlif_setup(struct gsm_network *, + const char *bind_addr, uint16_t port); int sgsn_ctrl_cmds_install(void); /* diff --git a/openbsc/src/gprs/sgsn_ctrl.c b/openbsc/src/gprs/sgsn_ctrl.c index eff94e0..0b40703 100644 --- a/openbsc/src/gprs/sgsn_ctrl.c +++ b/openbsc/src/gprs/sgsn_ctrl.c @@ -73,7 +73,8 @@ int sgsn_ctrl_cmds_install(void) return rc; } -struct ctrl_handle *sgsn_controlif_setup(struct gsm_network *net, uint16_t port) +struct ctrl_handle *sgsn_controlif_setup(struct gsm_network *net, + const char *bind_addr, uint16_t port) { - return ctrl_interface_setup(net, port, NULL); + return ctrl_interface_setup(net, bind_addr, port, NULL); } diff --git a/openbsc/src/gprs/sgsn_main.c b/openbsc/src/gprs/sgsn_main.c index b10b0b3..cb762b7 100644 --- a/openbsc/src/gprs/sgsn_main.c +++ b/openbsc/src/gprs/sgsn_main.c @@ -47,6 +47,8 @@ #include <osmocom/vty/stats.h> #include <osmocom/vty/ports.h> +#include <osmocom/ctrl/control_vty.h> + #include <openbsc/signal.h> #include <openbsc/debug.h> #include <openbsc/vty.h> @@ -311,22 +313,12 @@ int main(int argc, char **argv) logging_vty_add_cmds(&gprs_log_info); osmo_stats_vty_add_cmds(&gprs_log_info); sgsn_vty_init(); + ctrl_vty_init(tall_bsc_ctx); handle_options(argc, argv); rate_ctr_init(tall_bsc_ctx); - ctrl = sgsn_controlif_setup(NULL, OSMO_CTRL_PORT_SGSN); - if (!ctrl) { - LOGP(DGPRS, LOGL_ERROR, "Failed to create CTRL interface.\n"); - exit(1); - } - - if (sgsn_ctrl_cmds_install() != 0) { - LOGP(DGPRS, LOGL_ERROR, "Failed to install CTRL commands.\n"); - exit(1); - } - gprs_ns_set_log_ss(DNS); bssgp_set_log_ss(DBSSGP); @@ -362,6 +354,23 @@ int main(int argc, char **argv) if (rc < 0) exit(1); + /* start control interface after reading config for + * ctrl_vty_get_bind_addr() */ + LOGP(DGPRS, LOGL_NOTICE, "CTRL at %s %d\n", + ctrl_vty_get_bind_addr(), OSMO_CTRL_PORT_SGSN); + ctrl = sgsn_controlif_setup(NULL, ctrl_vty_get_bind_addr(), + OSMO_CTRL_PORT_SGSN); + if (!ctrl) { + LOGP(DGPRS, LOGL_ERROR, "Failed to create CTRL interface.\n"); + exit(1); + } + + if (sgsn_ctrl_cmds_install() != 0) { + LOGP(DGPRS, LOGL_ERROR, "Failed to install CTRL commands.\n"); + exit(1); + } + + rc = sgsn_gtp_init(&sgsn_inst); if (rc) { LOGP(DGPRS, LOGL_FATAL, "Cannot bind/listen on GTP socket\n"); diff --git a/openbsc/src/libbsc/bsc_ctrl_lookup.c b/openbsc/src/libbsc/bsc_ctrl_lookup.c index b504ccc..2a41c71 100644 --- a/openbsc/src/libbsc/bsc_ctrl_lookup.c +++ b/openbsc/src/libbsc/bsc_ctrl_lookup.c @@ -99,7 +99,9 @@ err_index: return -ERANGE; } -struct ctrl_handle *bsc_controlif_setup(struct gsm_network *net, uint16_t port) +struct ctrl_handle *bsc_controlif_setup(struct gsm_network *net, + const char *bind_addr, uint16_t port) { - return ctrl_interface_setup(net, port, bsc_ctrl_node_lookup); + return ctrl_interface_setup(net, bind_addr, port, + bsc_ctrl_node_lookup); } diff --git a/openbsc/src/osmo-bsc/osmo_bsc_main.c b/openbsc/src/osmo-bsc/osmo_bsc_main.c index 3806b24..3594a5b 100644 --- a/openbsc/src/osmo-bsc/osmo_bsc_main.c +++ b/openbsc/src/osmo-bsc/osmo_bsc_main.c @@ -32,6 +32,7 @@ #include <osmocom/ctrl/control_cmd.h> #include <osmocom/ctrl/control_if.h> #include <osmocom/ctrl/ports.h> +#include <osmocom/ctrl/control_vty.h> #include <osmocom/core/application.h> #include <osmocom/core/linuxlist.h> @@ -205,6 +206,7 @@ int main(int argc, char **argv) vty_init(&vty_info); bsc_vty_init(&log_info); bsc_msg_lst_vty_init(tall_bsc_ctx, &access_lists, BSC_NODE); + ctrl_vty_init(tall_bsc_ctx); INIT_LLIST_HEAD(&access_lists); @@ -225,7 +227,13 @@ int main(int argc, char **argv) } bsc_api_init(bsc_gsmnet, osmo_bsc_api()); - bsc_gsmnet->ctrl = bsc_controlif_setup(bsc_gsmnet, OSMO_CTRL_PORT_NITB_BSC); + /* start control interface after reading config for + * ctrl_vty_get_bind_addr() */ + LOGP(DNM, LOGL_NOTICE, "CTRL at %s %d\n", + ctrl_vty_get_bind_addr(), OSMO_CTRL_PORT_NITB_BSC); + bsc_gsmnet->ctrl = bsc_controlif_setup(bsc_gsmnet, + ctrl_vty_get_bind_addr(), + OSMO_CTRL_PORT_NITB_BSC); if (!bsc_gsmnet->ctrl) { fprintf(stderr, "Failed to init the control interface. Exiting.\n"); exit(1); diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat.c b/openbsc/src/osmo-bsc_nat/bsc_nat.c index e3dc10e..8404e41 100644 --- a/openbsc/src/osmo-bsc_nat/bsc_nat.c +++ b/openbsc/src/osmo-bsc_nat/bsc_nat.c @@ -52,6 +52,7 @@ #include <osmocom/ctrl/control_cmd.h> #include <osmocom/ctrl/control_if.h> #include <osmocom/ctrl/ports.h> +#include <osmocom/ctrl/control_vty.h> #include <osmocom/crypt/auth.h> @@ -1618,6 +1619,7 @@ int main(int argc, char **argv) logging_vty_add_cmds(&log_info); osmo_stats_vty_add_cmds(&log_info); bsc_nat_vty_init(nat); + ctrl_vty_init(tall_bsc_ctx); /* parse options */ @@ -1661,7 +1663,12 @@ int main(int argc, char **argv) exit(1); } - nat->ctrl = bsc_nat_controlif_setup(nat, OSMO_CTRL_PORT_BSC_NAT); + /* start control interface after reading config for + * ctrl_vty_get_bind_addr() */ + LOGP(DNAT, LOGL_NOTICE, "CTRL at %s %d\n", + ctrl_vty_get_bind_addr(), OSMO_CTRL_PORT_BSC_NAT); + nat->ctrl = bsc_nat_controlif_setup(nat, ctrl_vty_get_bind_addr(), + OSMO_CTRL_PORT_BSC_NAT); if (!nat->ctrl) { fprintf(stderr, "Creating the control interface failed.\n"); exit(1); diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c b/openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c index f3ca924..ec4243e 100644 --- a/openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c +++ b/openbsc/src/osmo-bsc_nat/bsc_nat_ctrl.c @@ -470,13 +470,14 @@ static int get_net_save_cmd(struct ctrl_cmd *cmd, void *data) return CTRL_CMD_ERROR; } -struct ctrl_handle *bsc_nat_controlif_setup(struct bsc_nat *nat, int port) +struct ctrl_handle *bsc_nat_controlif_setup(struct bsc_nat *nat, + const char *bind_addr, int port) { struct ctrl_handle *ctrl; int rc; - ctrl = bsc_controlif_setup(NULL, OSMO_CTRL_PORT_BSC_NAT); + ctrl = bsc_controlif_setup(NULL, bind_addr, OSMO_CTRL_PORT_BSC_NAT); if (!ctrl) { fprintf(stderr, "Failed to initialize the control interface. Exiting.\n"); return NULL; diff --git a/openbsc/src/osmo-nitb/bsc_hack.c b/openbsc/src/osmo-nitb/bsc_hack.c index 6f8da98..4bd03fc 100644 --- a/openbsc/src/osmo-nitb/bsc_hack.c +++ b/openbsc/src/osmo-nitb/bsc_hack.c @@ -49,6 +49,7 @@ #include <openbsc/rrlp.h> #include <osmocom/ctrl/control_if.h> #include <osmocom/ctrl/ports.h> +#include <osmocom/ctrl/control_vty.h> #include <openbsc/ctrl.h> #include <openbsc/osmo_bsc_rf.h> #include <openbsc/smpp.h> @@ -272,6 +273,7 @@ int main(int argc, char **argv) /* This needs to precede handle_options() */ vty_init(&vty_info); bsc_vty_init(&log_info); + ctrl_vty_init(tall_bsc_ctx); #ifdef BUILD_SMPP if (smpp_openbsc_init(tall_bsc_ctx, 0) < 0) @@ -295,7 +297,13 @@ int main(int argc, char **argv) #endif bsc_api_init(bsc_gsmnet, msc_bsc_api()); - bsc_gsmnet->ctrl = bsc_controlif_setup(bsc_gsmnet, OSMO_CTRL_PORT_NITB_BSC); + /* start control interface after reading config for + * ctrl_vty_get_bind_addr() */ + LOGP(DNM, LOGL_NOTICE, "CTRL at %s %d\n", + ctrl_vty_get_bind_addr(), OSMO_CTRL_PORT_NITB_BSC); + bsc_gsmnet->ctrl = bsc_controlif_setup(bsc_gsmnet, + ctrl_vty_get_bind_addr(), + OSMO_CTRL_PORT_NITB_BSC); if (!bsc_gsmnet->ctrl) { printf("Failed to initialize control interface. Exiting.\n"); return -1; -- 2.1.4

1 0

[PATCH 4/6] osmo-nitb: be strict about cmdline args
by Neels Hofmeyr 24 Feb '16

24 Feb '16

Abort upon unknown options and missing option arguments. This came to my attention while rewiring the -m and -M options: passing -M without argument would launch nitb with wrong configuration. So, rather exit immediately. If there are legacy options that should be ignored, they deserve an own 'case:' in the option switch. There are none that I'm aware of though. --- openbsc/src/osmo-nitb/bsc_hack.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/openbsc/src/osmo-nitb/bsc_hack.c b/openbsc/src/osmo-nitb/bsc_hack.c index a89300a..6f8da98 100644 --- a/openbsc/src/osmo-nitb/bsc_hack.c +++ b/openbsc/src/osmo-nitb/bsc_hack.c @@ -187,7 +187,9 @@ static void handle_options(int argc, char **argv) rf_ctrl_path = optarg; break; default: - /* ignore */ + /* catch unknown options *as well as* missing arguments. */ + fprintf(stderr, "Error in command line options. Abort.\n"); + exit(-1); break; } } -- 2.1.4

1 0

[PATCH 3/6] osmo-nitb: cosmetic: rename to rf_ctrl_path, following mncc_sock_path
by Neels Hofmeyr 24 Feb '16

24 Feb '16

Strictly speaking, the unix domain socket location is not a name but a path. The MNCC socket is called path, so it is confusing to call the ctrl socket a 'name'. --- openbsc/src/osmo-nitb/bsc_hack.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/openbsc/src/osmo-nitb/bsc_hack.c b/openbsc/src/osmo-nitb/bsc_hack.c index 3c878a6..a89300a 100644 --- a/openbsc/src/osmo-nitb/bsc_hack.c +++ b/openbsc/src/osmo-nitb/bsc_hack.c @@ -59,7 +59,7 @@ struct gsm_network *bsc_gsmnet = 0; static const char *database_name = "hlr.sqlite3"; static const char *config_file = "openbsc.cfg"; -static const char *rf_ctrl_name = NULL; +static const char *rf_ctrl_path = NULL; extern const char *openbsc_copyright; static int daemonize = 0; static const char *mncc_sock_path = NULL; @@ -106,7 +106,7 @@ static void print_help() printf(" -M --mncc-sock-path PATH Disable built-in MNCC handler and offer socket.\n"); printf(" -m --mncc-sock Same as `-M /tmp/bsc_mncc' (deprecated).\n"); printf(" -C --no-dbcounter Disable regular syncing of counters to database.\n"); - printf(" -r --rf-ctl NAME A unix domain socket to listen for cmds.\n"); + printf(" -r --rf-ctl PATH A unix domain socket to listen for cmds.\n"); } static void handle_options(int argc, char **argv) @@ -184,7 +184,7 @@ static void handle_options(int argc, char **argv) exit(0); break; case 'r': - rf_ctrl_name = optarg; + rf_ctrl_path = optarg; break; default: /* ignore */ @@ -312,7 +312,7 @@ int main(int argc, char **argv) /* seed the PRNG */ srand(time(NULL)); - bsc_gsmnet->bsc_data->rf_ctrl = osmo_bsc_rf_create(rf_ctrl_name, bsc_gsmnet); + bsc_gsmnet->bsc_data->rf_ctrl = osmo_bsc_rf_create(rf_ctrl_path, bsc_gsmnet); if (!bsc_gsmnet->bsc_data->rf_ctrl) { fprintf(stderr, "Failed to create the RF service.\n"); exit(1); -- 2.1.4

1 0

[PATCH 2/6] osmo-nitb: add -M to pass specific MNCC socket path
by Neels Hofmeyr 24 Feb '16

24 Feb '16

The old -m option without argument is still available and marked deprecated, to not make users' lives more difficult than necessary. --- openbsc/include/openbsc/mncc.h | 2 +- openbsc/src/libmsc/mncc_sock.c | 9 +++++---- openbsc/src/osmo-nitb/bsc_hack.c | 17 +++++++++++------ 3 files changed, 17 insertions(+), 11 deletions(-) diff --git a/openbsc/include/openbsc/mncc.h b/openbsc/include/openbsc/mncc.h index 10192ad..49f0c8b 100644 --- a/openbsc/include/openbsc/mncc.h +++ b/openbsc/include/openbsc/mncc.h @@ -206,7 +206,7 @@ int int_mncc_recv(struct gsm_network *net, struct msgb *msg); /* input from CC code into mncc_sock */ int mncc_sock_from_cc(struct gsm_network *net, struct msgb *msg); -int mncc_sock_init(struct gsm_network *gsmnet); +int mncc_sock_init(struct gsm_network *net, const char *sock_path); #define mncc_is_data_frame(msg_type) \ (msg_type == GSM_TCHF_FRAME \ diff --git a/openbsc/src/libmsc/mncc_sock.c b/openbsc/src/libmsc/mncc_sock.c index dd0a44f..6da1c56 100644 --- a/openbsc/src/libmsc/mncc_sock.c +++ b/openbsc/src/libmsc/mncc_sock.c @@ -277,7 +277,7 @@ static int mncc_sock_accept(struct osmo_fd *bfd, unsigned int flags) } -int mncc_sock_init(struct gsm_network *net) +int mncc_sock_init(struct gsm_network *net, const char *sock_path) { struct mncc_sock_state *state; struct osmo_fd *bfd; @@ -292,10 +292,10 @@ int mncc_sock_init(struct gsm_network *net) bfd = &state->listen_bfd; - rc = osmo_unixsock_listen(bfd, SOCK_SEQPACKET, "/tmp/bsc_mncc"); + rc = osmo_unixsock_listen(bfd, SOCK_SEQPACKET, sock_path); if (rc < 0) { - LOGP(DMNCC, LOGL_ERROR, "Could not create unix socket: %s\n", - strerror(errno)); + LOGP(DMNCC, LOGL_ERROR, "Could not create unix socket: %s: %s\n", + sock_path, strerror(errno)); talloc_free(state); return rc; } @@ -314,6 +314,7 @@ int mncc_sock_init(struct gsm_network *net) net->mncc_state = state; + LOGP(DMNCC, LOGL_NOTICE, "MNCC socket at %s\n", sock_path); return 0; } diff --git a/openbsc/src/osmo-nitb/bsc_hack.c b/openbsc/src/osmo-nitb/bsc_hack.c index 8b074f1..3c878a6 100644 --- a/openbsc/src/osmo-nitb/bsc_hack.c +++ b/openbsc/src/osmo-nitb/bsc_hack.c @@ -62,7 +62,7 @@ static const char *config_file = "openbsc.cfg"; static const char *rf_ctrl_name = NULL; extern const char *openbsc_copyright; static int daemonize = 0; -static int use_mncc_sock = 0; +static const char *mncc_sock_path = NULL; static int use_db_counter = 1; /* timer to store statistics */ @@ -103,7 +103,8 @@ static void print_help() printf(" -V --version Print the version of OpenBSC.\n"); printf(" -P --rtp-proxy Enable the RTP Proxy code inside OpenBSC.\n"); printf(" -e --log-level number Set a global loglevel.\n"); - printf(" -m --mncc-sock Disable built-in MNCC handler and offer socket.\n"); + printf(" -M --mncc-sock-path PATH Disable built-in MNCC handler and offer socket.\n"); + printf(" -m --mncc-sock Same as `-M /tmp/bsc_mncc' (deprecated).\n"); printf(" -C --no-dbcounter Disable regular syncing of counters to database.\n"); printf(" -r --rf-ctl NAME A unix domain socket to listen for cmds.\n"); } @@ -126,12 +127,13 @@ static void handle_options(int argc, char **argv) {"rtp-proxy", 0, 0, 'P'}, {"log-level", 1, 0, 'e'}, {"mncc-sock", 0, 0, 'm'}, + {"mncc-sock-path", 1, 0, 'M'}, {"no-dbcounter", 0, 0, 'C'}, {"rf-ctl", 1, 0, 'r'}, {0, 0, 0, 0} }; - c = getopt_long(argc, argv, "hd:Dsl:ar:p:TPVc:e:mCr:", + c = getopt_long(argc, argv, "hd:Dsl:ar:p:TPVc:e:mCr:M:", long_options, &option_index); if (c == -1) break; @@ -168,8 +170,11 @@ static void handle_options(int argc, char **argv) case 'e': log_set_log_level(osmo_stderr_target, atoi(optarg)); break; + case 'M': + mncc_sock_path = optarg; + break; case 'm': - use_mncc_sock = 1; + mncc_sock_path = "/tmp/bsc_mncc"; break; case 'C': use_db_counter = 0; @@ -275,10 +280,10 @@ int main(int argc, char **argv) handle_options(argc, argv); /* internal MNCC handler or MNCC socket? */ - if (use_mncc_sock) { + if (mncc_sock_path) { rc = bsc_bootstrap_network(mncc_sock_from_cc, config_file); if (rc >= 0) - mncc_sock_init(bsc_gsmnet); + mncc_sock_init(bsc_gsmnet, mncc_sock_path); } else rc = bsc_bootstrap_network(int_mncc_recv, config_file); if (rc < 0) -- 2.1.4

1 0

[PATCH 1/6] enable telnet VTY bind address config for various programs
by Neels Hofmeyr 24 Feb '16

24 Feb '16

Following the 'line vty'/'bind A.B.C.D' command added in libosmocore, use the configured address to set the telnet bind for the VTY line. It is now possible to publish the VTY on a specific local interface (including 0.0.0.0 aka "any"). Implement in all of: osmo-gbproxy osmo-gtphub osmo-sgsn osmo-bsc osmo-bsc_nat osmo-bsc_mgcp osmo-nitb In some of these main programs, move the telnet initialization below the configuration parsing. Historically, this was not a good idea for programs using bsc_init.c (aka bsc_bootstrap_network()), since they expected a gsm_network struct pointer in ((struct telnet_connection*)vty->priv)->priv, so that telnet had to be either initialized or replaced by a dummy struct. In the meantime, the gsm_network struct is not actually looked up in a priv pointer but in the static bsc_vty.c scope (bsc_gsmnet), so this limitation is mere legacy (even though said legacy is still there in an "#if 0" chunk). In the other binaries I have briefly looked at the init sequence dependencies and found no reason to initialize telnet above the config file parsing. In any case, I have tested every single one of abovementioned binaries to verify that they still parse the example config successfully and launch, allowing VTY connections on the configured address(es). I hope this suffices. In all of the above, log VTY address and port. LOGL_INFO is disabled by default in some of the logging scopes, and since it is a single log message right at program launch, I decided for the slightly more aggressive LOGL_NOTICE. --- openbsc/src/gprs/gb_proxy_main.c | 12 ++++++++---- openbsc/src/gprs/gtphub_main.c | 11 ++++++++--- openbsc/src/gprs/sgsn_main.c | 11 ++++++++--- openbsc/src/libbsc/bsc_init.c | 6 +++++- openbsc/src/osmo-bsc_mgcp/mgcp_main.c | 6 +++++- openbsc/src/osmo-bsc_nat/bsc_nat.c | 7 ++++++- 6 files changed, 40 insertions(+), 13 deletions(-) diff --git a/openbsc/src/gprs/gb_proxy_main.c b/openbsc/src/gprs/gb_proxy_main.c index f82fb5b..0c3cfbe 100644 --- a/openbsc/src/gprs/gb_proxy_main.c +++ b/openbsc/src/gprs/gb_proxy_main.c @@ -252,10 +252,6 @@ int main(int argc, char **argv) rate_ctr_init(tall_bsc_ctx); osmo_stats_init(tall_bsc_ctx); - rc = telnet_init(tall_bsc_ctx, &dummy_network, OSMO_VTY_PORT_GBPROXY); - if (rc < 0) - exit(1); - bssgp_nsi = gprs_ns_instantiate(&proxy_ns_cb, tall_bsc_ctx); if (!bssgp_nsi) { LOGP(DGPRS, LOGL_ERROR, "Unable to instantiate NS\n"); @@ -274,6 +270,14 @@ int main(int argc, char **argv) exit(2); } + /* start telnet after reading config for vty_get_bind_addr() */ + LOGP(DGPRS, LOGL_NOTICE, "VTY at %s %d\n", + vty_get_bind_addr(), OSMO_VTY_PORT_GBPROXY); + rc = telnet_init_dynif(tall_bsc_ctx, &dummy_network, + vty_get_bind_addr(), OSMO_VTY_PORT_GBPROXY); + if (rc < 0) + exit(1); + if (!gprs_nsvc_by_nsei(gbcfg.nsi, gbcfg.nsip_sgsn_nsei)) { LOGP(DGPRS, LOGL_FATAL, "You cannot proxy to NSEI %u " "without creating that NSEI before\n", diff --git a/openbsc/src/gprs/gtphub_main.c b/openbsc/src/gprs/gtphub_main.c index f18710d..89582b1 100644 --- a/openbsc/src/gprs/gtphub_main.c +++ b/openbsc/src/gprs/gtphub_main.c @@ -314,9 +314,6 @@ int main(int argc, char **argv) gtphub_vty_init(hub, cfg); rate_ctr_init(osmo_gtphub_ctx); - rc = telnet_init(osmo_gtphub_ctx, 0, OSMO_VTY_PORT_GTPHUB); - if (rc < 0) - exit(1); handle_options(ccfg, argc, argv); @@ -327,6 +324,14 @@ int main(int argc, char **argv) exit(2); } + /* start telnet after reading config for vty_get_bind_addr() */ + LOGP(DGTPHUB, LOGL_NOTICE, "VTY at %s %d\n", + vty_get_bind_addr(), OSMO_VTY_PORT_GTPHUB); + rc = telnet_init_dynif(osmo_gtphub_ctx, 0, vty_get_bind_addr(), + OSMO_VTY_PORT_GTPHUB); + if (rc < 0) + exit(1); + if (gtphub_start(hub, cfg, next_restart_count(ccfg->restart_counter_file)) != 0) diff --git a/openbsc/src/gprs/sgsn_main.c b/openbsc/src/gprs/sgsn_main.c index 2d3a0e4..b10b0b3 100644 --- a/openbsc/src/gprs/sgsn_main.c +++ b/openbsc/src/gprs/sgsn_main.c @@ -315,9 +315,6 @@ int main(int argc, char **argv) handle_options(argc, argv); rate_ctr_init(tall_bsc_ctx); - rc = telnet_init(tall_bsc_ctx, &dummy_network, OSMO_VTY_PORT_SGSN); - if (rc < 0) - exit(1); ctrl = sgsn_controlif_setup(NULL, OSMO_CTRL_PORT_SGSN); if (!ctrl) { @@ -357,6 +354,14 @@ int main(int argc, char **argv) exit(2); } + /* start telnet after reading config for vty_get_bind_addr() */ + LOGP(DGPRS, LOGL_NOTICE, "VTY at %s %d\n", + vty_get_bind_addr(), OSMO_VTY_PORT_SGSN); + rc = telnet_init_dynif(tall_bsc_ctx, &dummy_network, + vty_get_bind_addr(), OSMO_VTY_PORT_SGSN); + if (rc < 0) + exit(1); + rc = sgsn_gtp_init(&sgsn_inst); if (rc) { LOGP(DGPRS, LOGL_FATAL, "Cannot bind/listen on GTP socket\n"); diff --git a/openbsc/src/libbsc/bsc_init.c b/openbsc/src/libbsc/bsc_init.c index 743f4c1..859d999 100644 --- a/openbsc/src/libbsc/bsc_init.c +++ b/openbsc/src/libbsc/bsc_init.c @@ -495,7 +495,11 @@ int bsc_bootstrap_network(int (*mncc_recv)(struct gsm_network *, struct msgb *), return rc; } - rc = telnet_init(tall_bsc_ctx, bsc_gsmnet, OSMO_VTY_PORT_NITB_BSC); + /* start telnet after reading config for vty_get_bind_addr() */ + LOGP(DNM, LOGL_NOTICE, "VTY at %s %d\n", + vty_get_bind_addr(), OSMO_VTY_PORT_NITB_BSC); + rc = telnet_init_dynif(tall_bsc_ctx, bsc_gsmnet, vty_get_bind_addr(), + OSMO_VTY_PORT_NITB_BSC); if (rc < 0) return rc; diff --git a/openbsc/src/osmo-bsc_mgcp/mgcp_main.c b/openbsc/src/osmo-bsc_mgcp/mgcp_main.c index d755c90..e226b02 100644 --- a/openbsc/src/osmo-bsc_mgcp/mgcp_main.c +++ b/openbsc/src/osmo-bsc_mgcp/mgcp_main.c @@ -232,7 +232,11 @@ int main(int argc, char **argv) if (rc < 0) return rc; - rc = telnet_init(tall_bsc_ctx, &dummy_network, OSMO_VTY_PORT_BSC_MGCP); + /* start telnet after reading config for vty_get_bind_addr() */ + LOGP(DMGCP, LOGL_NOTICE, "VTY at %s %d\n", + vty_get_bind_addr(), OSMO_VTY_PORT_BSC_MGCP); + rc = telnet_init_dynif(tall_bsc_ctx, &dummy_network, + vty_get_bind_addr(), OSMO_VTY_PORT_BSC_MGCP); if (rc < 0) return rc; diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat.c b/openbsc/src/osmo-bsc_nat/bsc_nat.c index 41291d9..e3dc10e 100644 --- a/openbsc/src/osmo-bsc_nat/bsc_nat.c +++ b/openbsc/src/osmo-bsc_nat/bsc_nat.c @@ -1628,12 +1628,17 @@ int main(int argc, char **argv) osmo_stats_init(tall_bsc_ctx); /* init vty and parse */ - telnet_init(tall_bsc_ctx, NULL, OSMO_VTY_PORT_BSC_NAT); if (mgcp_parse_config(config_file, nat->mgcp_cfg, MGCP_BSC_NAT) < 0) { fprintf(stderr, "Failed to parse the config file: '%s'\n", config_file); return -3; } + /* start telnet after reading config for vty_get_bind_addr() */ + LOGP(DNAT, LOGL_NOTICE, "VTY at %s %d\n", + vty_get_bind_addr(), OSMO_VTY_PORT_BSC_NAT); + telnet_init_dynif(tall_bsc_ctx, NULL, vty_get_bind_addr(), + OSMO_VTY_PORT_BSC_NAT); + /* over rule the VTY config */ if (msc_ip) bsc_nat_set_msc_ip(nat, msc_ip); -- 2.1.4

1 0

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OpenBSC February 2016