scott
d8a74f02dc
Previously hardcoded to IOM1. Now asks which IOM the serial cable is connected to after login, and threads that choice through all Redfish paths in fetch_current_config and collect_network_config. apply_configuration and print_summary already used cfg.iom1.iom for paths so needed no changes. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
640 lines
23 KiB
Python
640 lines
23 KiB
Python
"""
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workflow_serial.py — Serial-based ES24N IOM network configuration workflow.
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Connects via USB serial cable, logs in to the IOM console, and configures
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network settings by running curl commands through the shell session.
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The IOM's Redfish API is only accessible locally at https://127.0.0.1 from
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within the IOM's own shell — not directly from the host over the serial cable.
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All Redfish operations are therefore performed by issuing curl commands over
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the serial connection and parsing the JSON responses.
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"""
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import glob
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import json
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import os
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import re
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import subprocess
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import time
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from typing import Optional
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from models import IOMConfig, ShelfConfig
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from serial_port import SerialPort
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from ui import (
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_c, C,
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banner, rule, draw_table, draw_box,
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info, ok, warn, error,
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prompt, prompt_ip, prompt_yn, prompt_password,
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)
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# Strip ANSI escape sequences from serial terminal output.
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# Catches CSI sequences (ESC[...X) and other two-character ESC sequences.
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_ANSI_RE = re.compile(r'\x1b(?:\[[0-9;]*[A-Za-z]|[^[])')
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def _at_shell_prompt(text: str) -> bool:
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"""
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Return True if any line in text looks like a root shell prompt.
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Checks whether a non-empty line ends with '#' or '# ' — the pattern
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produced by prompts like 'root@hostname:~#' — without being tripped
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up by the word 'login' appearing elsewhere in the output (e.g. in
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'Last login: ...' messages shown after a session is resumed).
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"""
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for line in text.splitlines():
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stripped = line.rstrip()
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if stripped.endswith("#") or stripped.endswith("# "):
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return True
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return False
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def _extract_serial_from_hostname(hostname: str) -> Optional[str]:
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"""
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Extract the BMC serial number from an IOM hostname.
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The serial number (which doubles as the root password) is a
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dash-separated segment matching MXE followed by alphanumerics.
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e.g. 'ves-ves-vds2249r-MXE3000048LHA03C-mgr1' → 'MXE3000048LHA03C'
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Returns None if no matching segment is found.
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"""
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for segment in hostname.split("-"):
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if re.match(r"^MXE[A-Z0-9]+$", segment, re.IGNORECASE):
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return segment
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return None
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def _detect_password_from_shell(ser: SerialPort) -> Optional[str]:
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"""
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When already logged in, run 'hostname' on the IOM shell and extract
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the BMC serial number from the output.
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"""
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ser.send_line("hostname", delay=0.3)
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out = _ANSI_RE.sub("", ser.read_until_quiet(quiet_period=0.5))
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for line in out.splitlines():
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pw = _extract_serial_from_hostname(line.strip())
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if pw:
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return pw
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return None
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# ── Serial Redfish transport ───────────────────────────────────────────────────
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def _login_serial_console(ser: SerialPort) -> tuple:
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"""
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Perform the root login sequence on the IOM serial console.
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Auto-detects the root password from the IOM hostname — the BMC serial
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number (e.g. MXE3000048LHA03C) is embedded in both the login prompt
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hostname and the output of 'hostname', so no manual entry is needed.
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- Login prompt present: extracts serial from 'hostname login:' line.
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- Already logged in: runs 'hostname' on the shell to extract the serial.
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- Falls back to prompting the user if auto-detection fails either way.
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Returns (success: bool, password: str).
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"""
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info("Logging in to IOM serial console...")
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# Send a newline to get the current state of the console
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ser.send_line("", delay=0.5)
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response = _ANSI_RE.sub("", ser.read_until_quiet(quiet_period=0.5))
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# Already at a shell prompt — extract password via 'hostname' command
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if _at_shell_prompt(response):
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ok("Already at shell prompt.")
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password = _detect_password_from_shell(ser)
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if password:
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ok(f"Password auto-detected: {_c(C.BOLD, password)}")
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return True, password
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warn("Could not auto-detect password from hostname.")
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return True, prompt_password()
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low = response.lower()
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# Try to extract the password from the login prompt hostname before
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# sending credentials — format: 'ves-ves-model-SERIAL-mgr1 login:'
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password = None
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login_match = re.search(r"(\S+)\s+login:", response, re.IGNORECASE)
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if login_match:
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password = _extract_serial_from_hostname(login_match.group(1))
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if password:
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ok(f"Password auto-detected from login prompt: {_c(C.BOLD, password)}")
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# Send username if we see a login prompt (or an empty/unknown response)
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if "login" in low or not response.strip():
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ser.send_line("root", delay=0.5)
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response = _ANSI_RE.sub("", ser.read_until_quiet(quiet_period=0.5))
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# Fall back to asking the user if auto-detection failed
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if not password:
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warn("Could not auto-detect password from login prompt.")
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password = prompt_password()
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# Send password
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if "password" in response.lower():
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ser.send_line(password, delay=0.5)
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response = _ANSI_RE.sub("", ser.read_until_quiet(quiet_period=2.0))
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if _at_shell_prompt(response):
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ok("Logged in to IOM console.")
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return True, password
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error(f"Login failed. Console response: {response.strip()[:120]}")
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return False, ""
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def _serial_redfish_request(ser: SerialPort, password: str, method: str,
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path: str, payload: Optional[dict] = None) -> tuple:
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"""
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Issue a Redfish request by running curl on the IOM's serial console.
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The Redfish API is available at https://127.0.0.1 from within the IOM shell.
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Appends -w '\\nHTTP_CODE:%{http_code}' to every curl call so the HTTP
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status can be parsed independently of the response body.
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Returns (success: bool, data: dict | str).
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"""
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url = f"https://127.0.0.1{path}"
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cmd = f"curl -sk -u root:{password} -X {method}"
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if payload:
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body = json.dumps(payload, separators=(",", ":"))
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cmd += f" -H 'Content-Type: application/json' -d '{body}'"
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cmd += f" -w '\\nHTTP_CODE:%{{http_code}}' '{url}'"
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ser.send_line(cmd, delay=0.3)
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raw = _ANSI_RE.sub("", ser.read_until_quiet(quiet_period=1.5, timeout=30.0))
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# ── Parse HTTP status code ─────────────────────────────────────────────────
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# Use the LAST occurrence of HTTP_CODE: so the echoed curl -w argument
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# (which also contains the literal text "HTTP_CODE:") doesn't interfere.
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http_code = 0
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if "HTTP_CODE:" in raw:
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try:
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http_code = int(raw.split("HTTP_CODE:")[-1].strip()[:3])
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except ValueError:
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pass
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# ── Extract JSON body ──────────────────────────────────────────────────────
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# The terminal echoes the curl command before executing it, and the
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# -w format string contains '%{http_code}' which includes a literal '{'.
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# When the terminal wraps long command lines, that '{' can land at a
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# line boundary, causing find("{") to return the wrong position.
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#
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# Strategy: narrow the search to the text before HTTP_CODE: (the actual
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# curl response body appears there), then find the LAST newline-prefixed
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# '{' — because the JSON response always starts on its own line, while
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# the echoed '{http_code}' is embedded mid-line in the curl command echo.
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# Use rfind (not find) — the -w argument in the echoed curl command also
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# contains the literal text "HTTP_CODE:", so find() would land there instead
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# of at the actual HTTP_CODE:200 output that curl appends at the end.
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http_code_pos = raw.rfind("HTTP_CODE:")
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search_area = raw[:http_code_pos].rstrip() if http_code_pos >= 0 else raw
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data: dict = {}
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json_end = search_area.rfind("}") + 1
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if json_end > 0:
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json_start = -1
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for nl in ("\r\n", "\n"):
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pos = search_area.rfind(nl + "{")
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if pos >= 0:
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json_start = pos + len(nl)
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break
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if json_start < 0:
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json_start = search_area.find("{") # fallback if no newline found
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if json_start >= 0:
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try:
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data = json.loads(search_area[json_start:json_end])
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except json.JSONDecodeError:
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pass
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# ── Determine success ──────────────────────────────────────────────────────
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if http_code >= 400:
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msg = (data.get("error", {}).get("message", "")
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if isinstance(data, dict) else "")
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snippet = search_area[json_start:json_start + 120] if json_start >= 0 else search_area[-120:]
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return False, f"HTTP {http_code}: {msg or snippet}"
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if http_code >= 200 or data:
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return True, data
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# No HTTP code and no JSON — check for curl-level error
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if "curl:" in raw.lower():
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return False, f"curl error: {raw.strip()[:120]}"
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return True, data
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# ── Step 1: Detect serial device ──────────────────────────────────────────────
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def detect_serial_device() -> Optional[str]:
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rule("Step 1 of 5 -- Serial Cable & Device Detection")
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print(" Connect the serial cable from the ES24N IOM1 port")
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print(" to the active F-Series controller USB port.")
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print()
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prompt("Press Enter when the cable is connected")
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for attempt in range(1, 4):
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info(f"Scanning for USB serial devices (attempt {attempt}/3)...")
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time.sleep(1)
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# FreeBSD: /dev/ttyU* Linux: /dev/ttyUSB*, /dev/ttyACM*
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patterns = ["/dev/ttyUSB*", "/dev/ttyACM*", "/dev/ttyU*"]
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ports = sorted({p for pat in patterns for p in glob.glob(pat)})
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if ports:
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break
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if attempt < 3:
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warn("No device found yet — retrying in 2 seconds...")
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time.sleep(2)
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if not ports:
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error("No USB serial device detected after 3 attempts.")
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print()
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print(" Troubleshooting:")
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print(" - Ensure the serial cable is fully seated at both ends.")
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print(" - Try a different USB port on the controller.")
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print(" - Confirm the ES24N is powered on.")
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return None
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if len(ports) == 1:
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ok(f"Device found: {_c(C.BOLD, ports[0])}")
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_fix_permissions(ports[0])
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return ports[0]
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# Multiple devices — let the user choose
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print()
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draw_table(
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["#", "Device"],
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[[str(i), p] for i, p in enumerate(ports, 1)],
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[4, 24],
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)
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print()
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while True:
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val = prompt(f"Select device number [1-{len(ports)}]")
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if val.isdigit() and 1 <= int(val) <= len(ports):
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selected = ports[int(val) - 1]
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ok(f"Selected: {_c(C.BOLD, selected)}")
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_fix_permissions(selected)
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return selected
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warn(f"Please enter a number between 1 and {len(ports)}.")
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def _fix_permissions(device: str):
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try:
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result = subprocess.run(
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["sudo", "chown", ":wheel", device],
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capture_output=True, timeout=5,
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)
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if result.returncode == 0:
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ok(f"Permissions updated on {device}")
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return
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except Exception:
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pass
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try:
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os.chmod(device, 0o666)
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ok(f"Permissions updated on {device}")
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except PermissionError:
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warn("Could not update device permissions automatically.")
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warn("If the connection fails, re-run this script with sudo.")
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# ── Step 2: Open serial connection & wake IOM console ─────────────────────────
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def open_serial_connection(device: str) -> Optional[SerialPort]:
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rule("Step 2 of 5 -- Opening Serial Connection")
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info(f"Opening {device} at 115200 baud (8N1)...")
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ser = SerialPort(device, baudrate=115200, timeout=5.0)
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try:
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ser.open()
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except OSError as e:
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error(str(e))
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return None
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ok(f"Port opened: {device}")
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info("Sending wake signal to IOM console...")
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ser.send_line("", delay=0.5)
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ser.send_line("", delay=0.5)
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response = _ANSI_RE.sub("", ser.read_until_quiet(quiet_period=0.5))
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print()
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if response.strip():
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print(f" {_c(C.DIM, '+-- IOM Console Response ' + '-' * 31)}")
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for line in response.strip().splitlines():
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print(f" {_c(C.DIM, '|')} {line}")
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print(f" {_c(C.DIM, '+' + '-' * 56)}")
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print()
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low = response.lower()
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if any(kw in low for kw in ("login", "$", "#", "password")):
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ok("IOM console is responsive.")
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else:
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warn("Unexpected response — the IOM may still be booting.")
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warn("You can continue; login will be attempted next.")
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else:
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warn("No response received from IOM console.")
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warn("Login will be attempted after the password is entered.")
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print()
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return ser
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# ── Step 3: Fetch & display current IOM network settings ─────────────────────
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def fetch_current_config(cfg: ShelfConfig, ser: SerialPort, iom: str) -> bool:
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"""
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Query Redfish for the current network config of the connected IOM via curl
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over the serial console session. Only the IOM whose console port the serial
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cable is plugged into is reachable.
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Populates cfg.iom1 with live data (regardless of whether IOM1 or IOM2).
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Returns True if the IOM responded successfully.
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"""
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rule(f"Step 3 of 5 -- Current {iom} Network Settings")
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info(f"Querying {iom} Redfish API via serial console...")
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print()
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path = f"/redfish/v1/Managers/{iom}/EthernetInterfaces/1"
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ok_flag, data = _serial_redfish_request(ser, cfg.password, "GET", path)
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if ok_flag and isinstance(data, dict):
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dhcp_enabled = (
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data.get("DHCPv4", {}).get("DHCPEnabled", False) or
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data.get("DHCPv6", {}).get("DHCPEnabled", False)
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)
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# Prefer IPv4StaticAddresses; fall back to IPv4Addresses
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addrs = data.get("IPv4StaticAddresses") or data.get("IPv4Addresses", [])
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if addrs:
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addr_rec = addrs[0]
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ip = addr_rec.get("Address", "--")
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gateway = addr_rec.get("Gateway", "--")
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netmask = addr_rec.get("SubnetMask", "--")
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else:
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ip = gateway = netmask = "--"
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cfg.iom1 = IOMConfig(
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iom = iom,
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dhcp = dhcp_enabled,
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ip = ip if ip != "--" else "",
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gateway = gateway if gateway != "--" else "",
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netmask = netmask if netmask != "--" else "",
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)
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mode_str = _c(C.CYN, "DHCP") if dhcp_enabled else _c(C.GRN, "Static")
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draw_table(
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["IOM", "Mode", "IP Address", "Gateway", "Subnet Mask"],
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[[iom, mode_str, ip, gateway, netmask]],
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[5, 8, 15, 15, 15],
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)
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print()
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return True
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else:
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draw_table(
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["IOM", "Mode", "IP Address", "Gateway", "Subnet Mask"],
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[[iom, _c(C.RED, "No response"), "--", "--", "--"]],
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[5, 8, 15, 15, 15],
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)
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print()
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error(f"{iom} query failed: {data}")
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error(f"Check that the serial cable is connected and {iom} is booted.")
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print()
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return False
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# ── Step 4: Prompt user — change config or exit ───────────────────────────────
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def collect_network_config(cfg: ShelfConfig, iom: str) -> bool:
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"""
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Show current settings, ask user what to do.
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Returns True to proceed with applying changes, False to skip.
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"""
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rule("Step 4 of 5 -- Change Configuration?")
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print(f" {_c(C.BOLD, '1')} Change network configuration")
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print(f" {_c(C.BOLD, '2')} Leave settings as-is and disconnect")
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print()
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while True:
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choice = prompt("Select option [1/2]")
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if choice in ("1", "2"):
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break
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warn("Please enter 1 or 2.")
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if choice == "2":
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info("No changes requested.")
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return False
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# ── User wants to change settings ─────────────────────────────────────────
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print()
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print(f" How should {iom} be configured?")
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print(f" {_c(C.BOLD, '1')} Static IP address")
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print(f" {_c(C.BOLD, '2')} DHCP")
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print()
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while True:
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mode = prompt("Select mode [1/2]")
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if mode in ("1", "2"):
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break
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warn("Please enter 1 or 2.")
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use_dhcp = (mode == "2")
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print()
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if use_dhcp:
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cfg.iom1 = IOMConfig(iom, dhcp=True)
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ok(f"{iom} will be set to DHCP.")
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return True
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# Static
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info(f"Static network details for {_c(C.BOLD, iom)}:")
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ip = prompt_ip(f" {iom} IP address ")
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gw = prompt_ip(f" {iom} Gateway ")
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nm = prompt_ip(f" {iom} Subnet Mask")
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cfg.iom1 = IOMConfig(iom, dhcp=False, ip=ip, gateway=gw, netmask=nm)
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return True
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# ── Step 5a: Apply configuration via Redfish ──────────────────────────────────
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def apply_configuration(cfg: ShelfConfig, ser: SerialPort) -> bool:
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rule("Step 5 of 5 -- Applying Configuration via Redfish API")
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info("Sending Redfish PATCH request to IOM1 via serial console curl...")
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print()
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success, detail = _apply_iom(cfg.password, cfg.iom1, ser)
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status = _c(C.GRN, "OK") if success else _c(C.RED, "FAIL")
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draw_table(["IOM", "Result", "Detail"], [["IOM1", status, detail]], [6, 8, 50])
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print()
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return success
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def _apply_iom(password: str, iom_cfg: IOMConfig, ser: SerialPort) -> tuple:
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"""
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Apply network config to a single IOM via curl over the serial console.
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DHCP: single PATCH enabling DHCPv4.
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Static: two sequential PATCHes to work around a firmware bug in the
|
|
current ES24N release that prevents disabling DHCP and setting a static
|
|
address in the same request.
|
|
Pass 1 -- set the static IP/gateway/netmask (DHCP still on)
|
|
Pass 2 -- disable DHCP (address is already committed)
|
|
"""
|
|
path = f"/redfish/v1/Managers/{iom_cfg.iom}/EthernetInterfaces/1"
|
|
|
|
if iom_cfg.dhcp:
|
|
ok_flag, data = _serial_redfish_request(
|
|
ser, password, "PATCH", path,
|
|
{"DHCPv4": {"DHCPEnabled": True}},
|
|
)
|
|
if ok_flag:
|
|
return True, "Configured: DHCP"
|
|
return False, str(data)[:80]
|
|
|
|
# Static -- Pass 1: set address while DHCP is still enabled
|
|
info(f" {iom_cfg.iom} pass 1/2 -- setting static address {iom_cfg.ip}...")
|
|
ok_flag, data = _serial_redfish_request(
|
|
ser, password, "PATCH", path,
|
|
{
|
|
"IPv4StaticAddresses": [{
|
|
"Address": iom_cfg.ip,
|
|
"Gateway": iom_cfg.gateway,
|
|
"SubnetMask": iom_cfg.netmask,
|
|
}]
|
|
},
|
|
)
|
|
if not ok_flag:
|
|
return False, f"Pass 1 failed: {str(data)[:70]}"
|
|
|
|
# Brief pause to allow the IOM to commit the address before the next call
|
|
time.sleep(1)
|
|
|
|
# Static -- Pass 2: disable DHCP now that the static address is committed
|
|
info(f" {iom_cfg.iom} pass 2/2 -- disabling DHCP...")
|
|
ok_flag, data = _serial_redfish_request(
|
|
ser, password, "PATCH", path,
|
|
{"DHCPv4": {"DHCPEnabled": False}},
|
|
)
|
|
if not ok_flag:
|
|
return False, f"Pass 2 failed: {str(data)[:70]}"
|
|
|
|
return True, f"Configured: Static {iom_cfg.ip}"
|
|
|
|
|
|
# ── Step 5b: Print applied-settings summary ───────────────────────────────────
|
|
def print_summary(cfg: ShelfConfig, changed: bool):
|
|
rule("Summary")
|
|
|
|
iom = cfg.iom1
|
|
if iom.dhcp:
|
|
mode, ip, gateway, netmask = "DHCP", "-- (DHCP)", "-- (DHCP)", "-- (DHCP)"
|
|
else:
|
|
mode, ip, gateway, netmask = "Static", iom.ip, iom.gateway, iom.netmask
|
|
|
|
draw_table(
|
|
["Setting", "IOM1"],
|
|
[
|
|
["Mode", mode],
|
|
["IP Address", ip],
|
|
["Gateway", gateway],
|
|
["Subnet Mask", netmask],
|
|
["Serial Port", cfg.device],
|
|
["Changes", "Yes" if changed else "None"],
|
|
],
|
|
[12, 28],
|
|
)
|
|
|
|
if changed:
|
|
print()
|
|
draw_box([
|
|
f"{_c(C.YEL, 'IMPORTANT -- Per the ES24N Service Guide:')}",
|
|
"",
|
|
"Remove the serial cable ONLY after verifying the",
|
|
"expander appears in TrueNAS with matching drives.",
|
|
"",
|
|
"TrueNAS > System Settings > Enclosure >",
|
|
"NVMe-oF Expansion Shelves",
|
|
], colour=C.YEL)
|
|
print()
|
|
|
|
|
|
# ── Disconnect ────────────────────────────────────────────────────────────────
|
|
def close_serial_connection(ser: SerialPort, device: str):
|
|
if ser and ser.is_open:
|
|
ser.close()
|
|
ok(f"Serial port {device} closed.")
|
|
|
|
print()
|
|
prompt("Disconnect the serial cable, then press Enter to continue")
|
|
ok("Serial cable disconnected. Shelf complete.")
|
|
|
|
|
|
# ── Full shelf configuration cycle ────────────────────────────────────────────
|
|
def configure_shelf() -> bool:
|
|
"""Run one complete shelf cycle. Returns True if user wants another shelf."""
|
|
banner()
|
|
cfg = ShelfConfig()
|
|
|
|
# 1 — Detect device
|
|
device = detect_serial_device()
|
|
if not device:
|
|
error("Could not detect a serial device. Returning to main menu.")
|
|
time.sleep(2)
|
|
return True
|
|
cfg.device = device
|
|
|
|
# 2 — Open serial port & wake IOM console
|
|
ser = open_serial_connection(device)
|
|
if not ser:
|
|
error("Could not open serial port. Returning to main menu.")
|
|
time.sleep(2)
|
|
return True
|
|
|
|
# Log in to the IOM console (auto-detects password from hostname)
|
|
print()
|
|
logged_in, cfg.password = _login_serial_console(ser)
|
|
if not logged_in:
|
|
error("Could not log in to IOM console. Returning to main menu.")
|
|
close_serial_connection(ser, device)
|
|
time.sleep(2)
|
|
return True
|
|
|
|
# Prompt for which IOM the serial cable is connected to
|
|
print()
|
|
print(" Which IOM is the serial cable connected to?")
|
|
print(f" {_c(C.BOLD, '1')} IOM1")
|
|
print(f" {_c(C.BOLD, '2')} IOM2")
|
|
print()
|
|
while True:
|
|
iom_choice = prompt("Select [1/2]")
|
|
if iom_choice in ("1", "2"):
|
|
break
|
|
warn("Please enter 1 or 2.")
|
|
iom = "IOM1" if iom_choice == "1" else "IOM2"
|
|
|
|
# 3 — Fetch & display current settings
|
|
fetch_current_config(cfg, ser, iom)
|
|
|
|
# 4 — Ask user: change or leave alone?
|
|
apply_changes = collect_network_config(cfg, iom)
|
|
|
|
# 5 — Apply if requested
|
|
changed = False
|
|
if apply_changes:
|
|
print()
|
|
rule("Ready to Apply")
|
|
info("Redfish PATCH requests will be sent via curl on the IOM console.")
|
|
print()
|
|
if prompt_yn("Apply configuration now?", default=True):
|
|
apply_configuration(cfg, ser)
|
|
changed = True
|
|
else:
|
|
warn("Configuration skipped — no changes were made.")
|
|
|
|
# Summary
|
|
print_summary(cfg, changed)
|
|
|
|
# Disconnect
|
|
close_serial_connection(ser, device)
|
|
|
|
print()
|
|
return prompt_yn("Configure another ES24N shelf?", default=False)
|