fixeria has uploaded this change for review.
[REST] Implement ErabList and ErabInfo
Change-Id: Ia98498143fd0e38030429171e42a0c4c4887df64
Related: SYS#7066
---
M contrib/openapi.yaml
M contrib/osmo-s1gw-cli.py
M priv/openapi.json
M src/rest_server.erl
4 files changed, 166 insertions(+), 1 deletion(-)
git pull ssh://gerrit.osmocom.org:29418/erlang/osmo-s1gw refs/changes/04/41104/1
diff --git a/contrib/openapi.yaml b/contrib/openapi.yaml
index 0041274..adf3e58 100644
--- a/contrib/openapi.yaml
+++ b/contrib/openapi.yaml
@@ -108,6 +108,34 @@
'404':
description: Unsuccessful outcome (eNB not found)
+ /erab-list:
+ get:
+ summary: Get E-RAB list for all eNBs
+ operationId: ErabList
+ responses:
+ '200':
+ description: A list of E-RABs
+ content:
+ application/json:
+ schema:
+ $ref: '#/components/schemas/ErabList'
+
+ /erab/{ErabId}:
+ get:
+ summary: Get information about a specific E-RAB
+ operationId: ErabInfo
+ parameters:
+ - $ref: '#/components/parameters/ErabId'
+ responses:
+ '200':
+ description: Successful outcome (E-RAB info)
+ content:
+ application/json:
+ schema:
+ $ref: '#/components/schemas/ErabItem'
+ '404':
+ description: Unsuccessful outcome (E-RAB not found)
+
components:
responses:
OperationResult:
@@ -146,6 +174,18 @@
description: eNB connection address/port
example: enb-conn:192.168.1.1-34650
+ ErabId:
+ name: ErabId
+ in: path
+ description: E-RAB identifier (selector)
+ required: true
+ schema:
+ oneOf:
+ - type: string
+ pattern: '^pid:[0-9]+\.[0-9]+\.[0-9]+$'
+ description: Process ID
+ example: pid:0.33.1
+
schemas:
OperationResult:
type: object
diff --git a/contrib/osmo-s1gw-cli.py b/contrib/osmo-s1gw-cli.py
index cb77709..8a65295 100755
--- a/contrib/osmo-s1gw-cli.py
+++ b/contrib/osmo-s1gw-cli.py
@@ -116,6 +116,16 @@
with self.send_get_req(f'enb/{enb_id}/erab-list') as f:
return json.load(f)
+ def erab_list(self) -> RESTResponse:
+ ''' ErabList :: Get E-RAB list for all eNBs '''
+ with self.send_get_req('erab-list') as f:
+ return json.load(f)
+
+ def erab_info(self, pid: str) -> RESTResponse:
+ ''' ErabInfo :: Get information about a specific E-RAB '''
+ with self.send_get_req(f'erab/pid:{pid}') as f:
+ return json.load(f)
+
class OsmoS1GWCli(cmd2.Cmd):
DESC = 'Interactive CLI for OsmoS1GW'
@@ -123,6 +133,7 @@
CAT_METRICS = 'Metrics commands'
CAT_PFCP = 'PFCP related commands'
CAT_ENB = 'eNB related commands'
+ CAT_ERAB = 'E-RAB related commands'
def __init__(self, argv):
super().__init__(allow_cli_args=False, include_py=True)
@@ -297,6 +308,24 @@
data = self.iface.enb_erab_list(enb_id)
self.erab_list_print(data)
+ @cmd2.with_category(CAT_ERAB)
+ def do_erab_list(self, opts) -> None:
+ ''' Get E-RAB list for all eNBs '''
+ data = self.iface.erab_list()
+ self.erab_list_print(data)
+
+ erab_info_parser = cmd2.Cmd2ArgumentParser()
+ erab_info_parser.add_argument('-P', '--pid',
+ type=str, required=True,
+ help='E-RAB process ID (example: 0.33.1)')
+
+ @cmd2.with_argparser(erab_info_parser)
+ @cmd2.with_category(CAT_ERAB)
+ def do_erab_info(self, opts) -> None:
+ ''' Get information about a specific E-RAB '''
+ data = self.iface.erab_info(opts.pid)
+ self.erab_list_print([data])
+
ap = argparse.ArgumentParser(prog='osmo-s1gw-cli', description=OsmoS1GWCli.DESC)
diff --git a/priv/openapi.json b/priv/openapi.json
index 07a11b8..bfe82a3 100644
--- a/priv/openapi.json
+++ b/priv/openapi.json
@@ -166,6 +166,50 @@
}
}
}
+ },
+ "/erab-list": {
+ "get": {
+ "summary": "Get E-RAB list for all eNBs",
+ "operationId": "ErabList",
+ "responses": {
+ "200": {
+ "description": "A list of E-RABs",
+ "content": {
+ "application/json": {
+ "schema": {
+ "$ref": "#/components/schemas/ErabList"
+ }
+ }
+ }
+ }
+ }
+ }
+ },
+ "/erab/{ErabId}": {
+ "get": {
+ "summary": "Get information about a specific E-RAB",
+ "operationId": "ErabInfo",
+ "parameters": [
+ {
+ "$ref": "#/components/parameters/ErabId"
+ }
+ ],
+ "responses": {
+ "200": {
+ "description": "Successful outcome (E-RAB info)",
+ "content": {
+ "application/json": {
+ "schema": {
+ "$ref": "#/components/schemas/ErabItem"
+ }
+ }
+ }
+ },
+ "404": {
+ "description": "Unsuccessful outcome (E-RAB not found)"
+ }
+ }
+ }
}
},
"components": {
@@ -221,6 +265,22 @@
}
]
}
+ },
+ "ErabId": {
+ "name": "ErabId",
+ "in": "path",
+ "description": "E-RAB identifier (selector)",
+ "required": true,
+ "schema": {
+ "oneOf": [
+ {
+ "type": "string",
+ "pattern": "^pid:[0-9]+\\.[0-9]+\\.[0-9]+$",
+ "description": "Process ID",
+ "example": "pid:0.33.1"
+ }
+ ]
+ }
}
},
"schemas": {
diff --git a/src/rest_server.erl b/src/rest_server.erl
index 2f805da..e1333c0 100644
--- a/src/rest_server.erl
+++ b/src/rest_server.erl
@@ -39,7 +39,9 @@
pfcp_heartbeat/1,
enb_list/1,
enb_info/1,
- enb_erab_list/1
+ enb_erab_list/1,
+ erab_list/1,
+ erab_info/1
]).
-include_lib("kernel/include/logger.hrl").
@@ -120,6 +122,24 @@
end.
+%% ErabList :: Get E-RAB list for all eNBs
+erab_list(#{}) ->
+ EnbList = enb_registry:fetch_enb_list(),
+ ErabList = lists:map(fun fetch_erab_list/1, EnbList),
+ {200, [], lists:flatten(ErabList)}.
+
+
+%% ErabInfo :: Get information about a specific E-RAB
+erab_info(#{path_parameters := PP}) ->
+ [{<< "ErabId" >>, << ID/bytes >>}] = PP,
+ case fetch_erab_info(ID) of
+ {ok, ErabInfo} ->
+ {200, [], ErabInfo};
+ error ->
+ {404, [], undefined}
+ end.
+
+
%% ------------------------------------------------------------------
%% private API
%% ------------------------------------------------------------------
@@ -245,6 +265,22 @@
error.
+-spec fetch_erab_info(binary()) -> {ok, erab_fsm:erab_info()} | error.
+fetch_erab_info(<< "pid:", Val/bytes >>) ->
+ Pid = parse_pid(Val),
+ %% guard against non-existent process IDs
+ %% TODO: check if the given Pid is actually an erab_fsm
+ try erab_list_item({pid, Pid}) of
+ ErabInfo -> {ok, ErabInfo}
+ catch
+ exit:{noproc, _} -> error
+ end;
+
+fetch_erab_info(ID) ->
+ ?LOG_ERROR("Unhandled E-RAB ID ~p", [ID]),
+ error.
+
+
-spec fetch_erab_list(enb_registry:enb_info()) -> [map()].
fetch_erab_list(#{mme_conn_info := ConnInfo}) ->
Pid = maps:get(handler, ConnInfo), %% s1ap_proxy process pid
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