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* tdef: Fix license: GPLv2+ instead of AGPLv3+Harald Welte2019-05-271-4/+6
| | | | | | | | | | | | libosmo{core,gsm,vty} code is GPLv2+. The tdef code originated in osmo-msc.git and was moved here without changing the license. That was a mistake, it always was meant to be under GPLv2-or-later after moving to libosmocore.git. Copyright is with sysmocom, so I as the managing director can approve the license change. Change-Id: Ie483ff6f6ea0a56c477649677b4b163c49df11d7
* Add VTY and CTRL port numbers for OsmoCBC (Cell Broadcast Centre)Harald Welte2019-05-081-0/+1
| | | | Change-Id: I2075420048b43973c800ba0fc389f4b559437233
* add vty_is_active()Neels Hofmeyr2019-05-031-0/+2
| | | | | | | | | | | | | For async callbacks it is useful to determine whether a given VTY pointer is still valid. For example, in osmo-msc, a silent call can be triggered by VTY, which causes a Paging. The paging_cb then writes to the VTY console that the silent call has succeeded. Unless the telnet vty session has already ended, in which case osmo-msc crashes; e.g. from an osmo_interact_vty.py command invocation. With this function, osmo-msc can ask whether the vty pointer passed to the paging callback is still active, and skip vty_out() if not. Change-Id: I42cf2af47283dd42c101faae0fac293c3a68d599
* represent negative T-timers as Osmocom-specific X-timersNeels Hofmeyr2019-03-061-1/+3
| | | | | | | | | | | | | | | | | | | | fi->T values are int, i.e. can be negative. Do not log them as unsigned, but define a distinct timer class "Xnnnn" for negative T values: i.e. for T == -1, print "Timeout of X1" instead of "Timeout of T4294967295". The negative T timer number space is useful to distinguish freely invented timers from proper 3GPP defined T numbers. So far I was using numbers like T993210 or T9999 for invented T, but X1, X2 etc. is a better solution. This way we can make sure to not accidentally define an invented timer number that actually collides with a proper 3GPP specified timer number that the author was not aware of at the time of writing. Add OSMO_T_FMT and OSMO_T_FMT_ARGS() macros as standardized timer number print format. Use that in fsm.c, tdef_vty.c, and adjust vty tests accordingly. Mention the two timer classes in various API docs and VTY online-docs. Change-Id: I3a59457623da9309fbbda235fe18fadd1636bff6
* add osmo_tdef API, originally adopted from osmo-bsc T_defNeels Hofmeyr2019-02-041-0/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move T_def from osmo-bsc to libosmocore as osmo_tdef. Adjust naming to be more consistent. Upgrade to first class API: - add timer grouping - add generic vty support - add mising API doc - add C test - add VTY transcript tests, also as examples for using the API From osmo_fsm_inst_state_chg() API doc, cross reference to osmo_tdef API. The root reason for moving to libosmocore is that I want to use the mgw_endpoint_fsm in osmo-msc for inter-MSC handover, and hence want to move the FSM to libosmo-mgcp-client. This FSM uses the T_def from osmo-bsc. Though the mgw_endpoint_fsm's use of T_def is minimal, I intend to use the osmo_tdef API in osmo-msc (and probably elsewhere) as well. libosmocore is the most sensible place for this. osmo_tdef provides: - a list of Tnnnn (GSM) timers with description, unit and default value. - vty UI to allow users to configure non-default timeouts. - API to tie T timers to osmo_fsm states and set them on state transitions. - a few standard units (minute, second, millisecond) as well as a custom unit (which relies on the timer's human readable description to indicate the meaning of the value). - conversion for standard units: for example, some GSM timers are defined in minutes, while our FSM definitions need timeouts in seconds. Conversion is for convenience only and can be easily avoided via the custom unit. By keeping separate osmo_tdef arrays, several groups of timers can be kept separately. The VTY tests in tests/tdef/ showcase different schemes: - tests/vty/tdef_vty_test_config_root.c: Keep several timer definitions in separately named groups: showcase the osmo_tdef_vty_groups*() API. Each timer group exists exactly once. - tests/vty/tdef_vty_test_config_subnode.c: Keep a single list of timers without separate grouping. Put this list on a specific subnode below the CONFIG_NODE. There could be several separate subnodes with timers like this, i.e. continuing from this example, sets timers could be separated by placing timers in specific config subnodes instead of using the global group name. - tests/vty/tdef_vty_test_dynamic.c: Dynamically allocate timer definitions per each new created object. Thus there can be an arbitrary number of independent timer definitions, one per allocated object. T_def was introduced during the recent osmo-bsc refactoring for inter-BSC handover, and has proven useful: - without osmo_tdef, each invocation of osmo_fsm_inst_state_chg() needs to be programmed with the right timeout value, for all code paths that invoke this state change. It is a likely source of errors to get one of them wrong. By defining a T timer exactly for an FSM state, the caller can merely invoke the state change and trust on the original state definition to apply the correct timeout. - it is helpful to have a standardized config file UI to provide user configurable timeouts, instead of inventing new VTY commands for each separate application of T timer numbers. Change-Id: Ibd6b1ed7f1bd6e1f2e0fde53352055a4468f23e5
* vty api: add vty_out_va()Neels Hofmeyr2019-02-041-0/+1
| | | | | | | | | Provide a va_list type vty_out() variant, to be able to pass on variable arguments from other function signatures to vty_out(). This will be used by Ibd6b1ed7f1bd6e1f2e0fde53352055a4468f23e5 for osmo_tdef. Change-Id: Ie6e6f11a6b794f3cb686350c1ed678e4d5bbbb75
* vty: Make TCP port configurable and introduce telnet_init_defaultHolger Hans Peter Freyther2018-12-232-0/+3
| | | | | | | | | | | | | | | Extend the vty_bind_cmd VTY command to allow to optionally specify a port in addition to the IPv4 address. Introduce telnet_init_default to relieve client code from having to query the bind IPv4 address (and now the TCP port). Instead a client only needs to pass the default TCP port to use. Client code should use it like: int rc = telnet_init_default(ctx, priv, OSMO_VTY_PORT_SGSN); Change-Id: Id5fb2faaf4311bd7284ee870526a6f87b7e260f3
* vty/command.h: document and prettify CMD_ATTR_* flagsVadim Yanitskiy2018-09-241-2/+3
| | | | | | | | | | Since the CMD_ATTR_* flags are intended to be used in bitwise operations, let's assign them proper values. Adding a new flag (e.g. CMD_ATTR_FOO_BAR) could actually result in assigning 0x03 instead of expected (0x01 << 2). Change-Id: I3b1badef830f7e6436a67673b5709ec33c060c68 Related: OS#3584
* vty: Add logging_vty_add_deprecated_subsysHarald Welte2018-06-091-0/+1
| | | | | | | | | | | | | This function permits the user to register deprecated log categories, which will ensure that if log categories are removed from a program, old config files will still load. We simply dynamically allocate a cmd_element and install it at CFG_LOG_NODE. Not registering it at VIEW_NODE or ENABLE_NODE ensures that it's not accessible from the interactive VTY, but only from the config file / configure node. Change-Id: I171f62ea2dc565b3a6c3eecd27fb7853e2529598
* ports.h: Add ctrl port for osmo-gbproxyDaniel Willmann2018-05-291-1/+1
| | | | Change-Id: I46a1cef3013c9bbf9b5a6d64e83cd84568f2523c
* introduce vty_out_rate_ctr_group_fmt() functionStefan Sperling2018-05-241-0/+2
| | | | | | | | | | | | This new function can be used to print a rate counter group according to a format string. The intention is to generalize and replace manual printing of counters as implemented for the 'show statistics' VTY command of osmo-bsc. Related: OS#3245 Related: osmo-bsc commit 71d524c059c5a5c90e7cb77d8a2134c1c68b9cde (g#9217) Change-Id: Idb3ec12494ff6a3a05efcc8818e78d1baa6546bd
* ports.h: Add VTY and CTRL ports for osmo-trxPau Espin Pedrol2018-02-221-0/+2
| | | | Change-Id: Ib79cdb62d45d8c78445c7b064e58eb7e9faeccf9
* logging vty: tweak general 'logging' command docNeels Hofmeyr2017-12-201-1/+1
| | | | | | 'logging' is not only for terminals, also for stderr and other log targets. Change-Id: If1ee59c7d1073502259b7d60008206ac3d8e87a3
* ports: define proper VTY and CTRL ports for OsmoHNBGWNeels Hofmeyr2017-12-201-0/+2
| | | | | | | | | So far it uses 2323, a development default. Instead, assign new ports, appending to the common range of VTY and CTRL ports: 4261 and 4262. Related: https://osmocom.org/projects/cellular-infrastructure/wiki/Port_Numbers Related: I28bd7a97d24455f88fadc6724d45c3264ba2fce4 (osmo-gsm-manuals) Change-Id: Ife52a968a41cb286f640006587877971ff66c1a4
* ports.h: Use same VTY port number for osmo-mgw and osmo-bsc_mgcpHarald Welte2017-11-201-1/+1
| | | | | | | | It was decided that osmo-mgw as direct successor of osmo-bsc_mgcp will use the same VTY port number (similar to osmo-nitb, osmo-bsc and osmo-bsc-sccplite all using the same VTY port number) Change-Id: Iec1da9f3b4d170416279f05876d9e1ae2970c577
* vty: add port number for osmo-mgwPhilipp Maier2017-11-101-0/+1
| | | | Change-Id: Ied224fe94b5152fd19e259396fbc0eaf69be4b96
* vty: deprecate now empty node commandsNeels Hofmeyr2017-11-081-2/+2
| | | | | | | | | | | Following I5021c64a787b63314e0f2f1cba0b8fc7bff4f09b a deprecation of vty_install_default() and install_default() commands is indicated. However, compiler warnings may clutter build output or even fail strict builds, hence I am submitting the deprecation in a separate patch. Depends: I5021c64a787b63314e0f2f1cba0b8fc7bff4f09b Change-Id: Icf5d83f641e838cebcccc635a043e94ba352abff
* vty: install 'exit', 'end',... commands on *all* nodesNeels Hofmeyr2017-09-271-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In many callers of the VTY API, we are lacking the vty_install_default() step at certain node levels. This creates nodes that lack the 'exit' command, and hence the only way to exit such a node is to restart the telnet session. Historically, the VTY looked for missing commands on the immediate parent node, and hence possibly found the parent's 'exit' command when the local node was missing it. That is why we so far did not notice the missing default commands. Furthermore, some callers call install_default() instead of vty_install_default(). Only vty_install_default() also includes the 'exit' and 'end' commands. There is no reason why there are two sets of default commands. To end this confusion, to catch all missing 'exit' commands and to prevent this from re-appearing in the future, simply *always* install all default commands implicitly when calling install_node(). In cmd_init(), there are some top-level nodes that apparently do not want the default commands installed. Keep those the way they are, by changing the invocation to new install_node_bare() ({VIEW,AUTH,AUTH_ENABLE}_NODE). Make both install_default() and vty_install_default() no-ops so that users of the API may still call them without harm. Do not yet deprecate yet, which follows in Icf5d83f641e838cebcccc635a043e94ba352abff. Drop all invocations to these two functions found in libosmocore. Change-Id: I5021c64a787b63314e0f2f1cba0b8fc7bff4f09b
* VTY: implement talloc context introspection commandVadim Yanitskiy2017-09-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change introduces a new command, which could be used to inspect the application's talloc context directly from VTY. To enable this feature, an application need to provide it's context via the 'vty_app_info' struct, and register the VTY command by calling the osmo_talloc_vty_add_cmds(). The new command is a sub-command of 'show': show talloc-context <context> <depth> [filter] Currently the following contexts may be inspected: - application - a context provided by an application; - null - all contexts, if NULL-context tracking is enabled. A report depth is defined by the next parameter, and could be: - full - full tree report, as the talloc_report_full() does; - brief - brief tree report, as the talloc_report() does; - DEPTH - user defined maximal report depth. Also, there are two optional report filters: - regexp - print only contexts, matching a regular expression; - tree - print a specific context, pointed by specified address. The command output is formatted the same way as in case of calling the talloc_report() or talloc_report_full(). Change-Id: I43fc42880b22294d83c565ae600ac65e4f38b30d
* vty: derive node name from prompt, use as XML idsNeels Hofmeyr2017-09-231-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 'show online-help' produces XML output with <node id="..."> ids. We reference those from the osmo-gsm-manuals. Instead of numeric IDs coming from internal code, rather use a human-readable node ID -- referencing id='config-msc' is much easier than referencing id='23'. Add a char name[] to struct cmd_node, to hold this name. This may be provided upon struct definition. Since callers of the VTY API so far don't have a name yet, we would need to add names everywhere to get meaningful node IDs. There is a way to get node ID names without touching dependent code: My first idea was to find out which command entered the node, i.e. command 'msc' enters the MSC_NODE. But it is impossible to derive which command entered which node from data structs, it's hidden in the vty command definition. But in fact all (TM) known API callers indeed provide a prompt string that contains a logical and human readable string name. Thus, if the name is unset in the struct, parse the prompt string and strip all "weird" characters to obtain a node name from that. We can still set names later on, but for now will have meaningful node IDs (e.g. 'config-msc' from '%s(config-msc)# ') without touching any dependent code. When VTY nodes get identical node names, which is quite possible, the XML export de-dups these by appending _2, _3,... suffixes. The first occurence is called e.g. 'name', the second 'name_2', then 'name_3', and so forth. If a node has no name (even after parsing the prompt), it will be named merely by the suffix. The first empty node will become id='_1', then '_2', '_3', and so forth. This happens for nodes like VIEW_NODE or AUTH_NODE. If this is merged, we need to adjust the references in osmo-gsm-manuals.git. This can happen in our own time though, because we manually create the vty reference xml and copy it to the osmo-gsm-manuals.git and then update the references from the vty_additions.xml. This anyway has to happen because currently the references tend to be hopelessly out of sync anyway, placing comments at wildly unrelated VTY commands. Change-Id: I8fa555570268b231c5e01727c661da92fad265de
* VTY: implicit node exit by de-indenting, not parent lookupNeels Hofmeyr2017-09-192-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Note: This will break users' config files if they do not use consistent indenting. (see below for a definition of "consistent".) When reading VTY commands from a file, use indenting as means to implicitly exit child nodes. Do not look for commands in the parent node implicitly. The VTY so far implies 'exit' commands if a VTY line cannot be parsed on the current node, but succeeds on the parent node. That is the mechanism by which our VTY config files do not need 'exit' at the end of each child node. We've hit problems with this in the following scenarios, which will show improved user experience after this patch: *) When both a parent and its child node have commands with identical names: cs7 instace 0 point-code 1.2.3 sccp-address osmo-msc point-code 0.0.1 If I put the parent's command below the child, it is still interpreted in the context of the child node: cs7 instace 0 sccp-address osmo-msc point-code 0.0.1 point-code 1.2.3 Though the indenting lets me assume I am setting the cs7 instance's global PC to 1.2.3, I'm actually overwriting osmo-msc's PC with 1.2.3 and discarding the 0.0.1. *) When a software change moves a VTY command from a child to a parent. Say 'timezone' moved from 'bts' to 'network' level: network timezone 1 2 Say a user still has an old config file with 'timezone' on the child level: network bts 0 timezone 1 2 trx 0 The user would expect an error message that 'timezone' is invalid on the 'bts' level. Instead, the VTY finds the parent node's 'timezone', steps out of 'bts' to the 'network' level, and instead says that the 'trx' command does not exist. Format: Consistent means that two adjacent indenting lines have the exact same indenting characters for the common length: Weird mix if you ask me, but correct and consistent: ROOT <space>PARENT <space><tab><space>CHILD <space><tab><space><tab><tab>GRANDCHILD <space><tab><space><tab><tab>GRANDCHILD2 <space>SIBLING Inconsistent: ROOT <space>PARENT <tab><space>CHILD <space><space><tab>GRANDCHILD <space><tab><tab>GRANDCHILD2 <tab>SIBLING Also, when going back to a parent level, the exact same indenting must be used as before in that node: Incorrect: ROOT <tab>PARENT <tab><tab><tab>CHILD <tab><tab>SIBLING As not really intended side effect, it is also permitted to indent the entire file starting from the root level. We could guard against it but there's no harm: Correct and consistent: <tab>ROOT <tab><tab>PARENT <tab><tab><tab><tab>CHILD <tab><tab>SIBLING Implementation: Track parent nodes state: whenever a command enters a child node, push a parent node onto an llist to remember the exact indentation characters used for that level. As soon as the first line on a child node is parsed, remember this new indentation (which must have a longer strlen() than its parent level) to apply to all remaining child siblings and grandchildren. If the amount of spaces that indent a following VTY command are less than this expected indentation, call vty_go_parent() until it matches up. At any level, if the common length of indentation characters mismatch, abort parsing in error. Transitions to child node are spread across VTY implementations and are hard to change. But transitions to the parent node are all handled by vty_go_parent(). By popping a parent from the list of parents in vty_go_parent(), we can also detect that a command has changed the node without changing the parent, hence it must have stepped into a child node, and we can push a parent frame. The behavior on the interactive telnet VTY remains unchanged. Change-Id: I24cbb3f6de111f2d31110c3c484c066f1153aac9
* ports.h: Add VTY port for GGSNHarald Welte2017-08-161-0/+2
| | | | Change-Id: I5bd49fbc19e88db96b4adbd56c82e7936059551c
* doxygen: unify use of \file across the boardNeels Hofmeyr2017-06-239-15/+22
| | | | | | | | | | | | | | | | | Considering the various styles and implications found in the sources, edit scores of files to follow the same API doc guidelines around the doxygen grouping and the \file tag. Many files now show a short description in the generated API doc that was so far only available as C comment. The guidelines and reasoning behind it is documented at https://osmocom.org/projects/cellular-infrastructure/wiki/Guidelines_for_API_documentation In some instances, remove file comments and add to the corresponding group instead, to be shared among several files (e.g. bitvec). Change-Id: Ifa70e77e90462b5eb2b0457c70fd25275910c72b
* doxygen: enable AUTOBRIEF, drop \briefNeels Hofmeyr2017-06-233-100/+100
| | | | | | | | | | Especially for short descriptions, it is annoying to have to type \brief for every single API doc. Drop all \brief and enable the AUTOBRIEF feature of doxygen, which always takes the first sentence of an API doc as the brief description. Change-Id: I11a8a821b065a128108641a2a63fb5a2b1916e87
* vty: additional nodes for sccp-address configurationPhilipp Maier2017-06-211-2/+2
| | | | | | | | | | The planned sccp-addressbook implementation in libosmo-sccp requires two additional VTY nodes. See also in libosmo-sccp.git: Change-Id I068ed7f7d113dab88424a9d47bab7fc703bb7942 Change-Id: I42aa29c0cccc97f284b85801c5329b015b189640
* vty: cleanup logging functionsMax2017-05-091-1/+1
| | | | | | | | | | | | * remove unused parameter from logging_vty_add_cmds() * mark log level descriptors static * change internal static function int check_log_to_target() to more appropriate bool should_log_to_target() * deprecate log_vty_command_*() from public API as it should only be used by logging_vty_add_cmds() Change-Id: I0e9ddd7ba3ce211302d99a3494eb408907a2916e Related: OS#71
* vty/command.h: Introduce VTY nodes for libosmo-sigtranHarald Welte2017-04-141-0/+8
| | | | | | | This adds several VTY nodes required by the libosmo-sigtran VTY interface. Change-Id: I184a7e3187b48c15c71bf773f86e188fe1daad15
* add VTY port number for osmo-stpHarald Welte2017-04-081-0/+1
| | | | Change-Id: I978e1b73aa8097a7db6318d78f9f93457e6ce2af
* ports.h: rename CSCN to MSCNeels Hofmeyr2017-02-241-1/+1
| | | | | | See OS#1958 Change-Id: I85aee0f8fdfc9c69d0ba9240988c633d3e707f2d
* comment: ports.h: more visibly remind to keep docs+wiki syncedNeels Hofmeyr2017-01-301-0/+1
| | | | | | | It is still too easy to forget syncing, so add another reminder at the end of the list. Change-Id: I95191906afa8e6ada31310d0e36de33e3fccf268
* vty/ports.h: reserve port 4258 for OsmoHLR VTYNeels Hofmeyr2017-01-281-0/+1
| | | | Change-Id: I08cb52d9399a27e6876e45da36f434708c4fddef
* fsm: Add VTY introspection of osmo_fsm and their instancesHarald Welte2017-01-071-0/+8
| | | | Change-Id: I89212e4f149f019099115a85bab353c04170df90
* fix GGSN Ctrl port to 4257Neels Hofmeyr2016-09-091-0/+1
| | | | | | | 4253 used to collide with the sysmobts-mgr VTY port. Note, openggsn does not actually have a Ctrl interface yet. Change-Id: If0fa0e606dabd5bc89907a56ef18cdbbbdedb4b7
* comment: */ports.h: link to wiki + manuals, indicate used portsNeels Hofmeyr2016-09-091-1/+7
| | | | Change-Id: I6a7bf04e589ccfaea98f20900a9bfe9dd4808dce
* add vty call show asciidoc: generate a documentation for countersAlexander Couzens2016-06-141-0/+2
| | | | | | | | | | | For each counter group a ascii doc table is generated containing all single counter with a reference to a section to add additional information to the counter Change-Id: Ia8af883167e5ee631059299b107ea83c8bbffdfb Reviewed-on: https://gerrit.osmocom.org/70 Reviewed-by: Harald Welte <laforge@gnumonks.org> Tested-by: Harald Welte <laforge@gnumonks.org>
* vty: Make a reservation for the osmo-sip-connectorHolger Hans Peter Freyther2016-03-311-0/+1
| | | | | The osmo-sip-connector is a new application and is a MNCC to SIP bridge. It is not implementing transcoding or RTP proxying at all.
* vty: add ctrl section for Control interface bind addressNeels Hofmeyr2016-02-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | This may seem like overkill for a mere const char * config item, but it makes the Control interface VTY commands reusable in any main() scope (inspired by libosmo-abis' VTY config). Add API functions ctrl_vty_init() and ctrl_vty_get_bind_addr(), in new files src/ctrl/control_vty.c and include/osmocom/ctrl/control_vty.h, compiled and/or installed dependent on ENABLE_VTY. Using these functions allows configuring a static const char* with the VTY commands ctrl bind A.B.C.D which callers shall subsequently use to bind the Control interface to a specific local interface address, by passing the return value of ctrl_vty_get_bind_addr() to control_interface_setup(). Add CTRL_NODE to enum node_type, "eating" RESERVED4_NODE to heed that comment on avoiding ABI changes.
* vty: add bind command for telnet vty lineNeels Hofmeyr2016-02-251-0/+3
| | | | | | | | | | | | | | | | | | | | 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.
* Add CSCN ctrl port defsNeels Hofmeyr2016-02-151-0/+1
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* add vty port nr for osmo-cscnNeels Hofmeyr2016-02-101-0/+1
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* fix FSF address in sources/headersJaroslav Škarvada2015-11-123-6/+6
| | | | Signed-off-by: Jaroslav Škarv