mirror of
https://github.com/kernelkit/infix.git
synced 2026-07-31 04:53:01 +02:00
yanger: Start the modularization process with ietf-system
The yanger source grown significantly, code is disorganized, the namespace is all over the place, etc. Take a stab at remedying the situation by splitting out the individual YANG models in separate Python modules, starting with ietf-system.
This commit is contained in:
Tobias Waldekranz
@@ -18,6 +18,6 @@ build-backend = "poetry.core.masonry.api"
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[tool.poetry.scripts]
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yanger = "yanger:main"
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yanger = "yanger.__main__:main"
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cli-pretty = "cli_pretty:main"
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ospf-status = "ospf_status:main"
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ospf-status = "ospf_status:main"
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@@ -1,4 +0,0 @@
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from .yanger import main
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if __name__ == "__main__":
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main()
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@@ -0,0 +1,3 @@
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from .yanger import main
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main()
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@@ -0,0 +1,27 @@
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LOG = None
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def lookup(obj, *keys):
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"""This function returns a value from a nested json object"""
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curr = obj
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for key in keys:
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if isinstance(curr, dict) and key in curr:
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curr = curr[key]
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else:
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return None
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return curr
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def insert(obj, *path_and_value):
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""""This function inserts a value into a nested json object"""
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if len(path_and_value) < 2:
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raise ValueError("Error: insert() takes at least two args")
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*path, value = path_and_value
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curr = obj
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for key in path[:-1]:
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if key not in curr or not isinstance(curr[key], dict):
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curr[key] = {}
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curr = curr[key]
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curr[path[-1]] = value
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@@ -0,0 +1,133 @@
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import abc
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import datetime
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import json
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import os
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import subprocess
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from . import common
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HOST = None
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class Host(abc.ABC):
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"""Host system API"""
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@abc.abstractmethod
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def now(self):
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"""Get the current time as a `datetime`"""
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pass
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@abc.abstractmethod
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def run(self, cmd, default=None, log=True):
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"""Get stdout of cmd
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Run cmd, provided as an argv, and return the output it
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produces. On error, return the default value if provided,
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otherwise raise an exception.
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"""
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pass
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def run_multiline(self, cmd, default=None):
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"""Get lines of stdout of cmd"""
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try:
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txt = self.run(cmd, log=(default is None))
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return txt.splitlines()
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except:
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if default is not None:
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return default
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raise
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def run_json(self, cmd, default=None):
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"""Get JSON object from stdout of cmd"""
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try:
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txt = self.run(cmd, log=(default is None))
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return json.loads(txt)
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except:
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if default is not None:
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return default
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raise
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@abc.abstractmethod
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def read(self, path):
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"""Get the contents of path
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Returns `None` if the file is not readable for any reason.
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"""
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pass
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def read_json(self, path, default=None):
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"""Get JSON object from path """
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try:
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txt = self.read(path)
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return json.loads(txt)
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except:
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if default is not None:
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return default
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raise
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class Localhost(Host):
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def now(self):
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return datetime.datetime.now(tz=datetime.timezone.utc)
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def run(self, cmd, default=None, log=True):
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try:
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result = subprocess.run(cmd, check=True, text=True,
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stdin=subprocess.DEVNULL,
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stdout=subprocess.PIPE,
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stderr=subprocess.DEVNULL)
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return result.stdout
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except subprocess.CalledProcessError as err:
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if default is not None:
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return default
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if log:
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common.LOG.error(f"Failed to run {err}")
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raise
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def read(self, path):
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try:
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with open(path, 'r') as f:
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data = f.read().strip()
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return data
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except FileNotFoundError:
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# This is considered OK
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pass
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except IOError:
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common.LOG.error(f"Failed to read \"{path}\"")
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return None
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class Testhost(Host):
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def __init__(self, basedir):
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self.basedir = basedir
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def now(self):
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return datetime.datetime(2023, 1, 1, 12, 0, 0, tzinfo=datetime.timezone.utc)
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def run(self, cmd, default=None, log=True):
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slug = "_".join(cmd).replace("/", "+").replace(" ", "-")
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path = os.path.join(self.basedir, "run", slug)
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try:
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with open(path, 'r') as f:
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return f.read()
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except:
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if default is not None:
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return default
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if log:
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common.LOG.error(f"No recording found for run \"{path}\"")
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raise
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def read(self, path):
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path = os.path.join(self.basedir, "rootfs", path[1:])
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try:
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with open(path, 'r') as f:
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return f.read()
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except FileNotFoundError:
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# This is considered OK
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pass
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except:
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common.LOG.error(f"No recording found for file \"{path}\"")
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raise
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@@ -0,0 +1,139 @@
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import subprocess
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from .common import insert
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from .host import HOST
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def uboot_get_boot_order():
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data = HOST.run_multiline("fw_printenv BOOT_ORDER".split(), [])
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for line in data:
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if "BOOT_ORDER" in line:
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return line.strip().split("=")[1].split()
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raise Exception
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def grub_get_boot_order():
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data = HOST.run_multiline("grub-editenv /mnt/aux/grub/grubenv list".split(), [])
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for line in data:
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if "ORDER" in line:
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return line.split("=")[1].strip().split()
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raise Exception
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def get_boot_order():
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order = None
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try:
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order = uboot_get_boot_order()
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except:
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pass
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try:
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if order is None:
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order = grub_get_boot_order()
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except:
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pass
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return order
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def add_ntp(out):
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data = HOST.run_multiline(["chronyc", "-c", "sources"], [])
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source = []
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state_mode_map = {
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"^": "server",
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"=": "peer",
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"#": "local-clock"
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}
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source_state_map = {
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"*": "selected",
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"+": "candidate",
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"-": "outlier",
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"?": "unusable",
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"x": "falseticker",
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"~": "unstable"
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}
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for line in data:
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src = {}
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line = line.split(',')
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src["address"] = line[2]
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src["mode"] = state_mode_map[line[0]]
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src["state"] = source_state_map[line[1]]
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src["stratum"] = int(line[3])
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src["poll"] = int(line[4])
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source.append(src)
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insert(out, "infix-system:ntp", "sources", "source", source)
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def add_software_slots(out, data):
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slots = []
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for slot in data["slots"]:
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for key, value in slot.items():
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new = {}
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new["name"] = key
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new["bootname"] = slot[key].get("bootname")
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new["class"] = slot[key].get("class")
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new["state"] = slot[key].get("state")
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new["bundle"] = {}
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slot_status=value.get("slot_status", {})
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if slot_status.get("bundle", {}).get("compatible"):
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new["bundle"]["compatible"] = slot_status.get("bundle", {}).get("compatible")
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if slot_status.get("bundle", {}).get("version"):
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new["bundle"]["version"] = slot_status.get("bundle", {}).get("version")
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if slot_status.get("checksum", {}).get("size"):
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new["size"] = str(slot_status.get("checksum", {}).get("size"))
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if slot_status.get("checksum", {}).get("sha256"):
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new["sha256"] = slot_status.get("checksum", {}).get("sha256")
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new["installed"] = {}
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if slot_status.get("installed", {}).get("timestamp"):
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new["installed"]["datetime"] = slot_status.get("installed", {}).get("timestamp")
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if slot_status.get("installed", {}).get("count"):
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new["installed"]["count"] = slot_status.get("installed", {}).get("count")
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new["activated"] = {}
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if slot_status.get("activated", {}).get("timestamp"):
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new["activated"]["datetime"] = slot_status.get("activated", {}).get("timestamp")
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if slot_status.get("activated", {}).get("count"):
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new["activated"]["count"] = slot_status.get("activated", {}).get("count")
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slots.append(new)
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out["slot"] = slots
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def add_software(out):
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software = {}
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try:
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data = HOST.run_json(["rauc", "status", "--detailed", "--output-format=json"])
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software["compatible"] = data["compatible"]
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software["variant"] = data["variant"]
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software["booted"] = data["booted"]
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boot_order = get_boot_order()
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if not boot_order is None:
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software["boot-order"] = boot_order
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add_software_slots(software, data)
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except subprocess.CalledProcessError:
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pass # Maybe an upgrade i progress, then rauc does not respond
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installer_status = HOST.run_json(["rauc-installation-status"])
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installer = {}
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if installer_status.get("operation"):
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installer["operation"] = installer_status["operation"]
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if "progress" in installer_status:
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progress = {}
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if installer_status["progress"].get("percentage"):
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progress["percentage"] = int(installer_status["progress"]["percentage"])
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if installer_status["progress"].get("message"):
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progress["message"] = installer_status["progress"]["message"]
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installer["progress"] = progress
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software["installer"] = installer
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insert(out, "infix-system:software", software)
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def operational():
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out = {
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"ietf-system:system-state": {
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}
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}
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out_state = out["ietf-system:system-state"]
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add_software(out_state)
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add_ntp(out_state)
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return out
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Executable
+5
@@ -0,0 +1,5 @@
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#!/bin/sh
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exec env PYTHONDONTWRITEBYTECODE=1 PYTHONPATH=$(readlink -f $(dirname "$0")/../) \
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python3 -m yanger "$@"
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Executable → Regular
+73
-197
@@ -9,6 +9,9 @@ import argparse
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from re import match
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from datetime import datetime, timedelta, timezone
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from . import common
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from . import host
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TESTPATH = ""
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logger = None
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@@ -17,82 +20,6 @@ def datetime_now():
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return datetime(2023, 1, 1, 12, 0, 0, tzinfo=timezone.utc)
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return datetime.now(timezone.utc)
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def uboot_get_boot_order():
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data = run_cmd("fw_printenv BOOT_ORDER".split(), "boot-order.txt")
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for line in data:
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if "BOOT_ORDER" in line:
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return line.strip().split("=")[1].split()
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raise Exception
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def grub_get_boot_order():
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data = run_cmd("grub-editenv /mnt/aux/grub/grubenv list".split(), None) # No need for testfile, will be returned from uboot
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for line in data:
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if "ORDER" in line:
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return line.split("=")[1].strip().split()
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raise Exception
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def json_get_yang_type(iface_in):
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if iface_in['link_type'] == "loopback":
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return "infix-if-type:loopback"
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if iface_in['link_type'] in ("gre", "gre6"):
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return "infix-if-type:gre"
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if iface_in['link_type'] != "ether":
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return "infix-if-type:other"
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if 'parentbus' in iface_in and iface_in['parentbus'] == "virtio":
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return "infix-if-type:etherlike"
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if 'linkinfo' not in iface_in:
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return "infix-if-type:ethernet"
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if 'info_kind' not in iface_in['linkinfo']:
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return "infix-if-type:ethernet"
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if iface_in['linkinfo']['info_kind'] == "veth":
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return "infix-if-type:veth"
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if iface_in['linkinfo']['info_kind'] in ("gretap", "ip6gretap"):
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return "infix-if-type:gretap"
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if iface_in['linkinfo']['info_kind'] == "vlan":
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return "infix-if-type:vlan"
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if iface_in['linkinfo']['info_kind'] == "bridge":
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return "infix-if-type:bridge"
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if iface_in['linkinfo']['info_kind'] == "dsa":
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return "infix-if-type:ethernet"
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if iface_in['linkinfo']['info_kind'] == "dummy":
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return "infix-if-type:dummy"
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# Fallback
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return "infix-if-type:ethernet"
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def json_get_yang_origin(addr):
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"""Translate kernel IP address origin to YANG"""
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xlate = {
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"kernel_ll": "link-layer",
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"kernel_ra": "link-layer",
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"static": "static",
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"dhcp": "dhcp",
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"random": "random",
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}
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proto = addr['protocol']
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if proto in ("kernel_ll", "kernel_ra"):
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if "stable-privacy" in addr:
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return "random"
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return xlate.get(proto, "other")
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def get_proc_value(procfile):
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"""Return contents of /proc file, or None"""
|
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try:
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@@ -176,6 +103,66 @@ def run_json_cmd(cmd, testfile, default=None, check=True):
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raise
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return data
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|
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def json_get_yang_type(iface_in):
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if iface_in['link_type'] == "loopback":
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return "infix-if-type:loopback"
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|
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if iface_in['link_type'] in ("gre", "gre6"):
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return "infix-if-type:gre"
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|
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if iface_in['link_type'] != "ether":
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return "infix-if-type:other"
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||||
|
||||
if 'parentbus' in iface_in and iface_in['parentbus'] == "virtio":
|
||||
return "infix-if-type:etherlike"
|
||||
|
||||
if 'linkinfo' not in iface_in:
|
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return "infix-if-type:ethernet"
|
||||
|
||||
if 'info_kind' not in iface_in['linkinfo']:
|
||||
return "infix-if-type:ethernet"
|
||||
|
||||
if iface_in['linkinfo']['info_kind'] == "veth":
|
||||
return "infix-if-type:veth"
|
||||
|
||||
if iface_in['linkinfo']['info_kind'] in ("gretap", "ip6gretap"):
|
||||
return "infix-if-type:gretap"
|
||||
|
||||
if iface_in['linkinfo']['info_kind'] == "vlan":
|
||||
return "infix-if-type:vlan"
|
||||
|
||||
if iface_in['linkinfo']['info_kind'] == "bridge":
|
||||
return "infix-if-type:bridge"
|
||||
|
||||
if iface_in['linkinfo']['info_kind'] == "dsa":
|
||||
return "infix-if-type:ethernet"
|
||||
|
||||
if iface_in['linkinfo']['info_kind'] == "dummy":
|
||||
return "infix-if-type:dummy"
|
||||
|
||||
# Fallback
|
||||
return "infix-if-type:ethernet"
|
||||
|
||||
|
||||
def json_get_yang_origin(addr):
|
||||
"""Translate kernel IP address origin to YANG"""
|
||||
xlate = {
|
||||
"kernel_ll": "link-layer",
|
||||
"kernel_ra": "link-layer",
|
||||
"static": "static",
|
||||
"dhcp": "dhcp",
|
||||
"random": "random",
|
||||
}
|
||||
proto = addr['protocol']
|
||||
|
||||
if proto in ("kernel_ll", "kernel_ra"):
|
||||
if "stable-privacy" in addr:
|
||||
return "random"
|
||||
|
||||
return xlate.get(proto, "other")
|
||||
|
||||
|
||||
|
||||
|
||||
def iface_is_dsa(iface_in):
|
||||
"""Check if interface is a DSA/intra-switch port"""
|
||||
@@ -1090,118 +1077,6 @@ def add_interface(ifname, yang_ifaces):
|
||||
|
||||
add_container_ifaces(yang_ifaces)
|
||||
|
||||
def add_system_ntp(out):
|
||||
data = run_cmd(["chronyc", "-c", "sources"], "chronyc-sources.txt", "")
|
||||
source = []
|
||||
state_mode_map = {
|
||||
"^": "server",
|
||||
"=": "peer",
|
||||
"#": "local-clock"
|
||||
}
|
||||
source_state_map = {
|
||||
"*": "selected",
|
||||
"+": "candidate",
|
||||
"-": "outlier",
|
||||
"?": "unusable",
|
||||
"x": "falseticker",
|
||||
"~": "unstable"
|
||||
}
|
||||
for line in data:
|
||||
src = {}
|
||||
line = line.split(',')
|
||||
src["address"] = line[2]
|
||||
src["mode"] = state_mode_map[line[0]]
|
||||
src["state"] = source_state_map[line[1]]
|
||||
src["stratum"] = int(line[3])
|
||||
src["poll"] = int(line[4])
|
||||
source.append(src)
|
||||
|
||||
insert(out, "infix-system:ntp", "sources", "source", source)
|
||||
|
||||
def add_system_software_slots(out, data):
|
||||
slots = []
|
||||
for slot in data["slots"]:
|
||||
for key, value in slot.items():
|
||||
new = {}
|
||||
new["name"] = key
|
||||
new["bootname"] = slot[key].get("bootname")
|
||||
new["class"] = slot[key].get("class")
|
||||
new["state"] = slot[key].get("state")
|
||||
new["bundle"] = {}
|
||||
slot_status=value.get("slot_status", {})
|
||||
if slot_status.get("bundle", {}).get("compatible"):
|
||||
new["bundle"]["compatible"] = slot_status.get("bundle", {}).get("compatible")
|
||||
if slot_status.get("bundle", {}).get("version"):
|
||||
new["bundle"]["version"] = slot_status.get("bundle", {}).get("version")
|
||||
if slot_status.get("checksum", {}).get("size"):
|
||||
new["size"] = str(slot_status.get("checksum", {}).get("size"))
|
||||
if slot_status.get("checksum", {}).get("sha256"):
|
||||
new["sha256"] = slot_status.get("checksum", {}).get("sha256")
|
||||
|
||||
new["installed"] = {}
|
||||
if slot_status.get("installed", {}).get("timestamp"):
|
||||
new["installed"]["datetime"] = slot_status.get("installed", {}).get("timestamp")
|
||||
|
||||
if slot_status.get("installed", {}).get("count"):
|
||||
new["installed"]["count"] = slot_status.get("installed", {}).get("count")
|
||||
|
||||
new["activated"] = {}
|
||||
if slot_status.get("activated", {}).get("timestamp"):
|
||||
new["activated"]["datetime"] = slot_status.get("activated", {}).get("timestamp")
|
||||
|
||||
if slot_status.get("activated", {}).get("count"):
|
||||
new["activated"]["count"] = slot_status.get("activated", {}).get("count")
|
||||
slots.append(new)
|
||||
out["slot"] = slots
|
||||
|
||||
def get_system_software_boot_order():
|
||||
order = None
|
||||
try:
|
||||
order = uboot_get_boot_order()
|
||||
except:
|
||||
pass
|
||||
try:
|
||||
if order is None:
|
||||
order = grub_get_boot_order()
|
||||
except:
|
||||
pass
|
||||
|
||||
return order
|
||||
|
||||
def add_system_software(out):
|
||||
software = {}
|
||||
try:
|
||||
data = run_json_cmd(["rauc", "status", "--detailed", "--output-format=json"], "rauc-status.json")
|
||||
software["compatible"] = data["compatible"]
|
||||
software["variant"] = data["variant"]
|
||||
software["booted"] = data["booted"]
|
||||
boot_order = get_system_software_boot_order()
|
||||
if not boot_order is None:
|
||||
software["boot-order"] = boot_order
|
||||
add_system_software_slots(software, data)
|
||||
except subprocess.CalledProcessError:
|
||||
pass # Maybe an upgrade i progress, then rauc does not respond
|
||||
|
||||
installer_status = run_json_cmd(["rauc-installation-status"], "rauc-installer-status.json")
|
||||
installer = {}
|
||||
if installer_status.get("operation"):
|
||||
installer["operation"] = installer_status["operation"]
|
||||
if "progress" in installer_status:
|
||||
progress = {}
|
||||
|
||||
if installer_status["progress"].get("percentage"):
|
||||
progress["percentage"] = int(installer_status["progress"]["percentage"])
|
||||
if installer_status["progress"].get("message"):
|
||||
progress["message"] = installer_status["progress"]["message"]
|
||||
installer["progress"] = progress
|
||||
software["installer"] = installer
|
||||
|
||||
insert(out, "infix-system:software", software)
|
||||
|
||||
def add_system(yang_data):
|
||||
add_system_software(yang_data)
|
||||
add_system_ntp(yang_data)
|
||||
|
||||
def main():
|
||||
global TESTPATH
|
||||
global logger
|
||||
@@ -1212,10 +1087,6 @@ def main():
|
||||
parser.add_argument("-t", "--test", default=None, help="Test data base path")
|
||||
args = parser.parse_args()
|
||||
|
||||
if args.test:
|
||||
TESTPATH = args.test
|
||||
else:
|
||||
TESTPATH = ""
|
||||
|
||||
# Set up syslog output for critical errors to aid debugging
|
||||
logger = logging.getLogger('yanger')
|
||||
@@ -1229,6 +1100,14 @@ def main():
|
||||
log.setFormatter(fmt)
|
||||
logger.setLevel(logging.INFO)
|
||||
logger.addHandler(log)
|
||||
common.LOG = logger
|
||||
|
||||
if args.test:
|
||||
TESTPATH = args.test
|
||||
host.HOST = host.Testhost(args.test)
|
||||
else:
|
||||
TESTPATH = ""
|
||||
host.HOST = host.Localhost()
|
||||
|
||||
if args.model == 'ietf-interfaces':
|
||||
yang_data = {
|
||||
@@ -1283,11 +1162,8 @@ def main():
|
||||
add_container(yang_data['infix-containers:containers']['container'])
|
||||
|
||||
elif args.model == 'ietf-system':
|
||||
yang_data = {
|
||||
"ietf-system:system-state": {
|
||||
}
|
||||
}
|
||||
add_system(yang_data['ietf-system:system-state'])
|
||||
from . import ietf_system
|
||||
yang_data = ietf_system.operational()
|
||||
else:
|
||||
logger.warning(f"Unsupported model {args.model}", file=sys.stderr)
|
||||
sys.exit(1)
|
||||
|
||||
Reference in New Issue
Block a user