ExecuteGuestCommand JSON-serialized the args array into the agent/exec
'input-data' field — which is the process's STDIN, not its arguments. So
guest commands ran with no argv: cmd.exe started interactively and the
JSON blob ['/c','echo',...] arrived at its prompt.
PVE's agent/exec 'command' parameter is itself an array (element 0 = the
executable, the rest = argv) sent as repeated form keys. The low-level
client couldn't express repeated keys (Dictionary<string,string> only),
so:
- Add PostAsync(string, IEnumerable<KeyValuePair<string,string>>) to
IPveHttpClient/PveHttpClient; BuildFormContent now emits one key=value
field per pair, so a key may repeat.
- ExecuteGuestCommand builds command = [exe] + args as repeated 'command'
fields and no longer touches input-data.
Tests: form-encoder repeated-key + per-value encoding cases; VmService
tests asserting the command array, order, and absence of input-data; an
integration regression guard that echoes an arg and checks it round-trips
as stdout.
Tracked as F091. Closes#68.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
PveHttpClient.EncodeFormValue encoded &, =, +, space, and % but left ';'
literal. PVE's application/x-www-form-urlencoded parser treats a raw ';'
as a field separator (the historical alternative to '&'), so a value like
boot=order=scsi0;ide2
was split into 'boot=order=scsi0' plus an empty 'ide2' field, and PVE
rejected the PUT with "ide2: unable to parse drive options". This broke
any multi-device boot order set via Set-PveVmConfig -AdditionalConfig,
and any other value containing ';'.
Encode ';' as %3B. Safe under the existing minimal-encoding policy that
keeps ':' and '!' literal for cluster-join: cluster-join payloads never
contain ';', and PVE url-decodes config form values.
Tracked as F088. Closes#64.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Clint Branham