Harald Welte | 34b5a95 | 2019-05-27 11:54:11 +0200 | [diff] [blame] | 1 | /* Osmocom VTY interface functions in TTCN-3 |
| 2 | * (C) 2017-2018 Harald Welte <laforge@gnumonks.org> |
| 3 | * contributions by sysmocom - s.f.m.c. GmbH |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Released under the terms of GNU General Public License, Version 2 or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 10 | */ |
| 11 | |
Harald Welte | 8542cef | 2017-07-19 20:06:26 +0200 | [diff] [blame] | 12 | module Osmocom_VTY_Functions { |
| 13 | import from TELNETasp_PortType all; |
Stefan Sperling | cff1356 | 2018-11-13 15:24:06 +0100 | [diff] [blame] | 14 | import from Osmocom_Types all; |
Harald Welte | 8542cef | 2017-07-19 20:06:26 +0200 | [diff] [blame] | 15 | |
Harald Welte | 553f655 | 2018-01-24 18:50:53 +0100 | [diff] [blame] | 16 | modulepar { |
| 17 | charstring mp_prompt_prefix := "OpenBSC"; |
| 18 | } |
Harald Welte | 8542cef | 2017-07-19 20:06:26 +0200 | [diff] [blame] | 19 | |
Harald Welte | 553f655 | 2018-01-24 18:50:53 +0100 | [diff] [blame] | 20 | const charstring VTY_VIEW_SUFFIX := "> "; |
| 21 | const charstring VTY_ENABLE_SUFFIX := "# "; |
| 22 | const charstring VTY_CFG_SUFFIX := "(*)"; |
| 23 | |
| 24 | template charstring t_vty_unknown := pattern "*% Unknown command."; |
Harald Welte | 8542cef | 2017-07-19 20:06:26 +0200 | [diff] [blame] | 25 | |
| 26 | /* configure prompts in TELNETasp module */ |
Harald Welte | a266325 | 2018-09-10 10:21:44 +0200 | [diff] [blame] | 27 | function f_vty_set_prompts(TELNETasp_PT pt, charstring prompt_prefix := mp_prompt_prefix) { |
Harald Welte | 553f655 | 2018-01-24 18:50:53 +0100 | [diff] [blame] | 28 | var ASP_TelnetDynamicConfig vty_prompt[3] := { |
| 29 | { |
| 30 | prompt := { |
| 31 | id := 1, |
Harald Welte | a266325 | 2018-09-10 10:21:44 +0200 | [diff] [blame] | 32 | prompt := prompt_prefix & VTY_VIEW_SUFFIX, |
Harald Welte | 553f655 | 2018-01-24 18:50:53 +0100 | [diff] [blame] | 33 | has_wildcards := false |
| 34 | } |
| 35 | }, { |
| 36 | prompt := { |
| 37 | id := 2, |
Harald Welte | a266325 | 2018-09-10 10:21:44 +0200 | [diff] [blame] | 38 | prompt := prompt_prefix & VTY_ENABLE_SUFFIX, |
Harald Welte | 553f655 | 2018-01-24 18:50:53 +0100 | [diff] [blame] | 39 | has_wildcards := false |
| 40 | } |
| 41 | }, { |
| 42 | prompt := { |
| 43 | id := 3, |
Harald Welte | a266325 | 2018-09-10 10:21:44 +0200 | [diff] [blame] | 44 | prompt := prompt_prefix & VTY_CFG_SUFFIX, |
Harald Welte | 553f655 | 2018-01-24 18:50:53 +0100 | [diff] [blame] | 45 | has_wildcards := true |
| 46 | } |
| 47 | } |
| 48 | }; |
| 49 | |
Harald Welte | 8542cef | 2017-07-19 20:06:26 +0200 | [diff] [blame] | 50 | /* set some configuration that isn't possible to express |
| 51 | * in the config file due to syntactic restrictions (Who invents config |
| 52 | * files that don't permit regular expressions? */ |
| 53 | for (var integer i := 0; i < sizeof(vty_prompt); i:= i + 1) { |
Harald Welte | 553f655 | 2018-01-24 18:50:53 +0100 | [diff] [blame] | 54 | pt.send(vty_prompt[i]); |
Harald Welte | 8542cef | 2017-07-19 20:06:26 +0200 | [diff] [blame] | 55 | } |
| 56 | } |
| 57 | |
| 58 | /* wait for any of the permitted prompts; buffer + return all intermediate output */ |
| 59 | function f_vty_wait_for_prompt(TELNETasp_PT pt) return charstring { |
Harald Welte | 8542cef | 2017-07-19 20:06:26 +0200 | [diff] [blame] | 60 | var charstring rx, buf := ""; |
Stefan Sperling | 23b4597 | 2018-07-27 17:20:38 +0200 | [diff] [blame] | 61 | var integer fd; |
Harald Welte | 8542cef | 2017-07-19 20:06:26 +0200 | [diff] [blame] | 62 | timer T := 2.0; |
| 63 | |
| 64 | T.start; |
| 65 | alt { |
Pau Espin Pedrol | 1a4d4e9 | 2019-12-04 16:59:29 +0100 | [diff] [blame] | 66 | [] pt.receive(pattern "[\w-]+" & VTY_VIEW_SUFFIX) { }; |
| 67 | [] pt.receive(pattern "[\w-]+\# ") { }; |
| 68 | [] pt.receive(pattern "[\w-]+\(*\)\# ") { }; |
Harald Welte | 553f655 | 2018-01-24 18:50:53 +0100 | [diff] [blame] | 69 | [] pt.receive(t_vty_unknown) { |
| 70 | testcase.stop(fail, "VTY: Unknown Command"); |
| 71 | }; |
Harald Welte | 8542cef | 2017-07-19 20:06:26 +0200 | [diff] [blame] | 72 | [] pt.receive(charstring:?) -> value rx { buf := buf & rx; repeat }; |
Stefan Sperling | 23b4597 | 2018-07-27 17:20:38 +0200 | [diff] [blame] | 73 | [] pt.receive(integer:?) -> value fd { |
| 74 | if (fd == -1) { |
| 75 | setverdict(fail, "VTY Telnet Connection Failure"); |
| 76 | mtc.stop; |
| 77 | } else { |
| 78 | repeat; /* telnet connection succeeded */ |
| 79 | } |
| 80 | } |
Harald Welte | 553f655 | 2018-01-24 18:50:53 +0100 | [diff] [blame] | 81 | [] T.timeout { |
| 82 | setverdict(fail, "VTY Timeout for prompt"); |
Daniel Willmann | e4ff537 | 2018-07-05 17:35:03 +0200 | [diff] [blame] | 83 | mtc.stop; |
Harald Welte | 553f655 | 2018-01-24 18:50:53 +0100 | [diff] [blame] | 84 | }; |
Harald Welte | 8542cef | 2017-07-19 20:06:26 +0200 | [diff] [blame] | 85 | } |
| 86 | T.stop; |
| 87 | return buf; |
| 88 | } |
| 89 | |
| 90 | /* send a VTY command and obtain response until prompt is received */ |
| 91 | function f_vty_transceive_ret(TELNETasp_PT pt, charstring tx) return charstring { |
| 92 | pt.send(tx); |
| 93 | return f_vty_wait_for_prompt(pt); |
| 94 | } |
| 95 | |
| 96 | /* send a VTY command and obtain response until prompt is received */ |
| 97 | function f_vty_transceive(TELNETasp_PT pt, charstring tx) { |
Harald Welte | 930d0a7 | 2018-03-22 22:08:40 +0100 | [diff] [blame] | 98 | var charstring unused := f_vty_transceive_ret(pt, tx); |
Harald Welte | 8542cef | 2017-07-19 20:06:26 +0200 | [diff] [blame] | 99 | } |
| 100 | |
| 101 | type integer BtsNr (0..255); |
| 102 | type integer BtsTrxNr (0..255); |
| 103 | type integer BtsTimeslotNr (0..7); |
Philipp Maier | d0e64b0 | 2019-03-13 14:15:23 +0100 | [diff] [blame] | 104 | type integer MscNr (0..255); |
Harald Welte | 8542cef | 2017-07-19 20:06:26 +0200 | [diff] [blame] | 105 | |
| 106 | type charstring BtsGprsMode ("none", "gprs", "egrps"); |
| 107 | |
| 108 | /* enter the'confiugration' mode of the VTY */ |
| 109 | function f_vty_enter_config(TELNETasp_PT pt) { |
| 110 | f_vty_transceive(pt, "configure terminal") |
| 111 | } |
| 112 | |
| 113 | function f_vty_enter_cfg_network(TELNETasp_PT pt) { |
| 114 | f_vty_enter_config(pt); |
| 115 | f_vty_transceive(pt, "network") |
| 116 | } |
| 117 | |
| 118 | function f_vty_enter_cfg_bts(TELNETasp_PT pt, BtsNr bts := 0) { |
| 119 | f_vty_enter_cfg_network(pt); |
| 120 | f_vty_transceive(pt, "bts " & int2str(bts)); |
| 121 | } |
| 122 | |
| 123 | function f_vty_enter_cfg_trx(TELNETasp_PT pt, BtsNr bts := 0, BtsTrxNr trx := 0) { |
| 124 | f_vty_enter_cfg_bts(pt, bts); |
| 125 | f_vty_transceive(pt, "trx " & int2str(trx)); |
| 126 | } |
| 127 | |
| 128 | function f_vty_enter_cfg_ts(TELNETasp_PT pt, BtsNr bts := 0, BtsTrxNr trx := 0, BtsTimeslotNr ts) { |
| 129 | f_vty_enter_cfg_trx(pt, bts, trx); |
| 130 | f_vty_transceive(pt, "timeslot " & int2str(ts)); |
| 131 | } |
| 132 | |
Philipp Maier | d0e64b0 | 2019-03-13 14:15:23 +0100 | [diff] [blame] | 133 | function f_vty_enter_cfg_msc(TELNETasp_PT pt, MscNr msc := 0) { |
| 134 | f_vty_enter_config(pt); |
| 135 | f_vty_transceive(pt, "msc " & int2str(msc)); |
| 136 | } |
| 137 | |
Harald Welte | f640a01 | 2018-04-14 17:49:21 +0200 | [diff] [blame] | 138 | type record of charstring rof_charstring; |
| 139 | function f_vty_config2(TELNETasp_PT pt, rof_charstring config_nodes, charstring cmd) |
Harald Welte | 872ce17 | 2018-02-16 22:10:33 +0100 | [diff] [blame] | 140 | { |
| 141 | /* enter config mode; enter node */ |
| 142 | f_vty_enter_config(pt); |
Harald Welte | f640a01 | 2018-04-14 17:49:21 +0200 | [diff] [blame] | 143 | for (var integer i := 0; i < sizeof(config_nodes); i := i+1) { |
| 144 | f_vty_transceive(pt, config_nodes[i]); |
| 145 | } |
Harald Welte | 872ce17 | 2018-02-16 22:10:33 +0100 | [diff] [blame] | 146 | /* execute command */ |
| 147 | f_vty_transceive(pt, cmd); |
| 148 | /* leave config mode */ |
| 149 | f_vty_transceive(pt, "end"); |
| 150 | } |
| 151 | |
| 152 | |
Harald Welte | f640a01 | 2018-04-14 17:49:21 +0200 | [diff] [blame] | 153 | function f_vty_config(TELNETasp_PT pt, charstring config_node, charstring cmd) |
| 154 | { |
| 155 | f_vty_config2(pt, {config_node}, cmd); |
| 156 | } |
| 157 | |
Alexander Couzens | 98aa59e | 2018-06-12 13:45:59 +0200 | [diff] [blame] | 158 | function f_vty_transceive_match(TELNETasp_PT pt, charstring cmd, template charstring exp_ret) { |
| 159 | var charstring ret := f_vty_transceive_ret(pt, cmd); |
| 160 | if (not match(ret, exp_ret)) { |
| 161 | setverdict(fail, "Non-matching VTY response: ", ret); |
Daniel Willmann | e4ff537 | 2018-07-05 17:35:03 +0200 | [diff] [blame] | 162 | mtc.stop; |
Alexander Couzens | 98aa59e | 2018-06-12 13:45:59 +0200 | [diff] [blame] | 163 | } |
| 164 | } |
| 165 | |
Alexander Couzens | 1e6d990 | 2018-06-12 13:48:26 +0200 | [diff] [blame] | 166 | function f_vty_transceive_not_match(TELNETasp_PT pt, charstring cmd, template charstring exp_ret) { |
| 167 | var charstring ret := f_vty_transceive_ret(pt, cmd); |
| 168 | if (match(ret, exp_ret)) { |
| 169 | setverdict(fail, "Unexpected matching VTY response: ", ret); |
Daniel Willmann | e4ff537 | 2018-07-05 17:35:03 +0200 | [diff] [blame] | 170 | mtc.stop; |
Alexander Couzens | 1e6d990 | 2018-06-12 13:48:26 +0200 | [diff] [blame] | 171 | } |
| 172 | } |
| 173 | |
Stefan Sperling | cff1356 | 2018-11-13 15:24:06 +0100 | [diff] [blame] | 174 | function f_vty_transceive_match_regex(TELNETasp_PT pt, charstring cmd, charstring regex, integer groupno) return charstring |
| 175 | { |
| 176 | var charstring resp := f_vty_transceive_ret(pt, cmd); |
| 177 | return regexp(resp, regex, groupno); |
| 178 | } |
| 179 | |
| 180 | function f_vty_transceive_match_regexp_retry(TELNETasp_PT pt, charstring cmd, charstring regex, |
| 181 | integer groupno, integer num_attempts, float retry_delay) return charstring |
| 182 | { |
| 183 | while (num_attempts > 0) { |
| 184 | var charstring ret := f_vty_transceive_match_regex(pt, cmd, regex, groupno); |
| 185 | if (ret != "") { |
| 186 | return ret; |
| 187 | } |
| 188 | f_sleep(retry_delay); |
| 189 | num_attempts := num_attempts - 1; |
| 190 | } |
| 191 | |
| 192 | setverdict(fail, "No matching VTY response for regular expression '", regex, |
| 193 | "' after ", num_attempts, " attempts." ); |
| 194 | mtc.stop; |
| 195 | } |
Harald Welte | f640a01 | 2018-04-14 17:49:21 +0200 | [diff] [blame] | 196 | |
Harald Welte | 8542cef | 2017-07-19 20:06:26 +0200 | [diff] [blame] | 197 | } |