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move stuff into vmm_commands

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This commit is contained in:
Hannes Mehnert 2018-10-24 00:03:36 +02:00
parent 6f18f1bfff
commit d513269453
19 changed files with 496 additions and 465 deletions
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2
app/vmm_client.ml
View file

@ -6,7 +6,7 @@ let rec read_tls_write_cons t =
Vmm_tls.read_tls t >>= function
| Error _ -> Logs.err (fun m -> m "exception while reading") ; Lwt.return_unit
| Ok wire ->
Logs.app (fun m -> m "%a" Vmm_asn.pp_wire wire) ;
Logs.app (fun m -> m "%a" Vmm_commands.pp_wire wire) ;
read_tls_write_cons t
let client cas host port cert priv_key =

12
app/vmm_console.ml
View file

@ -31,7 +31,7 @@ let read_console name ring channel () =
(match String.Map.find name !active with
| None -> Lwt.return_unit
| Some fd ->
let header = Vmm_asn.{ version = my_version ; sequence = 0L ; id } in
let header = Vmm_commands.{ version = my_version ; sequence = 0L ; id } in
Vmm_lwt.write_wire fd (header, `Data (`Console_data (t, line))) >>= function
| Error _ ->
Vmm_lwt.safe_close fd >|= fun () ->
@ -91,7 +91,7 @@ let subscribe s id =
let entries = Vmm_ring.read r in
Logs.debug (fun m -> m "found %d history" (List.length entries)) ;
Lwt_list.iter_s (fun (i, v) ->
let header = Vmm_asn.{ version = my_version ; sequence = 0L ; id } in
let header = Vmm_commands.{ version = my_version ; sequence = 0L ; id } in
Vmm_lwt.write_wire s (header, `Data (`Console_data (i, v))) >|= fun _ -> ())
entries >>= fun () ->
(match String.Map.find name !active with
@ -109,12 +109,12 @@ let handle s addr () =
Lwt.return_unit
| Ok (header, `Command (`Console_cmd cmd)) ->
begin
(if not (Vmm_asn.version_eq header.Vmm_asn.version my_version) then
(if not (Vmm_commands.version_eq header.Vmm_commands.version my_version) then
Lwt.return (Error (`Msg "ignoring data with bad version"))
else
match cmd with
| `Console_add -> add_fifo header.Vmm_asn.id
| `Console_subscribe -> subscribe s header.Vmm_asn.id) >>= (function
| `Console_add -> add_fifo header.Vmm_commands.id
| `Console_subscribe -> subscribe s header.Vmm_commands.id) >>= (function
| Ok msg -> Vmm_lwt.write_wire s (header, `Success (`String msg))
| Error (`Msg msg) ->
Logs.err (fun m -> m "error while processing command: %s" msg) ;
@ -125,7 +125,7 @@ let handle s addr () =
Lwt.return_unit
end
| Ok wire ->
Logs.warn (fun m -> m "ignoring %a" Vmm_asn.pp_wire wire) ;
Logs.warn (fun m -> m "ignoring %a" Vmm_commands.pp_wire wire) ;
loop ()
in
loop () >>= fun () ->

9
app/vmm_influxdb_stats.ml
View file

@ -5,6 +5,7 @@ open Lwt.Infix
open Astring
open Vmm_core
open Vmm_core.Stats
(*
@ -191,13 +192,13 @@ let rec read_sock_write_tcp c ?fd addr addrtype =
true
| Ok (hdr, `Data (`Stats_data (ru, vmm, ifs))) ->
begin
if not (Vmm_asn.version_eq hdr.Vmm_asn.version my_version) then begin
if not (Vmm_commands.version_eq hdr.Vmm_commands.version my_version) then begin
Logs.err (fun m -> m "unknown wire protocol version") ;
safe_close fd >>= fun () ->
safe_close c >|= fun () ->
false
end else
let name = string_of_id hdr.Vmm_asn.id in
let name = string_of_id hdr.Vmm_commands.id in
let ru = P.encode_ru name ru in
let vmm = match vmm with None -> [] | Some xs -> [ P.encode_vmm name xs ] in
let taps = List.map (P.encode_if name) ifs in
@ -214,12 +215,12 @@ let rec read_sock_write_tcp c ?fd addr addrtype =
false
end
| Ok wire ->
Logs.warn (fun m -> m "ignoring %a" Vmm_asn.pp_wire wire) ;
Logs.warn (fun m -> m "ignoring %a" Vmm_commands.pp_wire wire) ;
Lwt.return (Some fd) >>= fun fd ->
read_sock_write_tcp c ?fd addr addrtype
let query_sock vm c =
let header = Vmm_asn.{ version = my_version ; sequence = !command ; id = vm } in
let header = Vmm_commands.{ version = my_version ; sequence = !command ; id = vm } in
command := Int64.succ !command ;
Logs.debug (fun m -> m "%Lu requesting %a via socket" !command pp_id vm) ;
Vmm_lwt.write_wire c (header, `Command (`Stats_cmd `Stats_subscribe))

32
app/vmm_log.ml
View file

@ -55,25 +55,26 @@ let write_to_file file =
let tree = ref Vmm_trie.empty
let bcast = ref 0L
let send_history s ring id =
let elements = Vmm_ring.read ring in
let res =
List.fold_left (fun acc (_, x) ->
let cs = Cstruct.of_string x in
match Vmm_asn.log_entry_of_cstruct cs with
| Ok (header, ts, event) ->
if Vmm_core.is_sub_id ~super:id ~sub:header.Vmm_asn.id
then (header, ts, event) :: acc
| Ok (ts, event) ->
let sub = Vmm_core.Log.name event in
if Vmm_core.is_sub_id ~super:id ~sub
then (ts, event) :: acc
else acc
| _ -> acc)
[] elements
in
(* just need a wrapper in tag = Log.Data, id = reqid *)
Lwt_list.fold_left_s (fun r (header, ts, event) ->
Lwt_list.fold_left_s (fun r (ts, event) ->
match r with
| Ok () -> Vmm_lwt.write_wire s (header, `Data (`Log_data (ts, event)))
| Ok () ->
let header = Vmm_commands.{ version = my_version ; sequence = 0L ; id } in
Vmm_lwt.write_wire s (header, `Data (`Log_data (ts, event)))
| Error e -> Lwt.return (Error e))
(Ok ()) res
@ -90,30 +91,29 @@ let handle mvar ring s addr () =
Logs.err (fun m -> m "exception while reading") ;
Lwt.return_unit
| Ok (hdr, `Data (`Log_data (ts, event))) ->
if not (Vmm_asn.version_eq hdr.Vmm_asn.version my_version) then begin
if not (Vmm_commands.version_eq hdr.Vmm_commands.version my_version) then begin
Logs.warn (fun m -> m "unsupported version") ;
Lwt.return_unit
end else begin
let data = Vmm_asn.log_entry_to_cstruct (hdr, ts, event) in
let data = Vmm_asn.log_entry_to_cstruct (ts, event) in
Vmm_ring.write ring (ts, Cstruct.to_string data) ;
Lwt_mvar.put mvar data >>= fun () ->
let data' =
let header = Vmm_asn.{ version = my_version ; sequence = !bcast ; id = hdr.Vmm_asn.id } in
let header = Vmm_commands.{ version = my_version ; sequence = 0L ; id = hdr.Vmm_commands.id } in
(header, `Data (`Log_data (ts, event)))
in
bcast := Int64.succ !bcast ;
broadcast hdr.Vmm_asn.id data' !tree >>= fun tree' ->
broadcast hdr.Vmm_commands.id data' !tree >>= fun tree' ->
tree := tree' ;
loop ()
end
| Ok (hdr, `Command (`Log_cmd lc)) ->
if not (Vmm_asn.version_eq hdr.Vmm_asn.version my_version) then begin
if not (Vmm_commands.version_eq hdr.Vmm_commands.version my_version) then begin
Logs.warn (fun m -> m "unsupported version") ;
Lwt.return_unit
end else begin
match lc with
| `Log_subscribe ->
let tree', ret = Vmm_trie.insert hdr.Vmm_asn.id s !tree in
let tree', ret = Vmm_trie.insert hdr.Vmm_commands.id s !tree in
tree := tree' ;
(match ret with
| None -> Lwt.return_unit
@ -124,14 +124,14 @@ let handle mvar ring s addr () =
Logs.err (fun m -> m "error while sending reply for subscribe") ;
Lwt.return_unit
| Ok () ->
send_history s ring hdr.Vmm_asn.id >>= function
send_history s ring hdr.Vmm_commands.id >>= function
| Error _ ->
Logs.err (fun m -> m "error while sending history") ;
Lwt.return_unit
| Ok () -> loop () (* TODO no need to loop ;) *)
end
| Ok wire ->
Logs.warn (fun m -> m "ignoring %a" Vmm_asn.pp_wire wire) ;
Logs.warn (fun m -> m "ignoring %a" Vmm_commands.pp_wire wire) ;
loop ()
in
loop () >>= fun () ->

8
app/vmm_tls_endpoint.ml
View file

@ -44,7 +44,7 @@ let read fd tls =
Vmm_lwt.read_wire fd >>= function
| Error _ -> Lwt.return (Error (`Msg "exception while reading"))
| Ok wire ->
Logs.debug (fun m -> m "read proxying %a" Vmm_asn.pp_wire wire) ;
Logs.debug (fun m -> m "read proxying %a" Vmm_commands.pp_wire wire) ;
Vmm_tls.write_tls tls wire >>= function
| Ok () -> loop ()
| Error `Exception -> Lwt.return (Error (`Msg "exception"))
@ -55,7 +55,7 @@ let process fd tls =
Vmm_lwt.read_wire fd >>= function
| Error _ -> Lwt.return (Error (`Msg "read error"))
| Ok wire ->
Logs.debug (fun m -> m "proxying %a" Vmm_asn.pp_wire wire) ;
Logs.debug (fun m -> m "proxying %a" Vmm_commands.pp_wire wire) ;
Vmm_tls.write_tls tls wire >|= function
| Ok () -> Ok ()
| Error `Exception -> Error (`Msg "exception on write")
@ -65,10 +65,10 @@ let handle ca (tls, addr) =
match Vmm_x509.handle addr chain with
| Error (`Msg m) -> Lwt.fail_with m
| Ok (name, cmd) ->
let sock, next = Vmm_commands.handle cmd in
let sock, next = Vmm_commands.endpoint cmd in
connect (Vmm_core.socket_path sock) >>= fun fd ->
let wire =
let header = Vmm_asn.{version = my_version ; sequence = !command ; id = name } in
let header = Vmm_commands.{version = my_version ; sequence = !command ; id = name } in
command := Int64.succ !command ;
(header, `Command cmd)
in

10
app/vmmc.ml
View file

@ -13,8 +13,8 @@ let process fd =
| Error _ ->
Error (`Msg "read or parse error")
| Ok (header, reply) ->
if Vmm_asn.version_eq header.Vmm_asn.version version then begin
Logs.app (fun m -> m "%a" Vmm_asn.pp_wire (header, reply)) ;
if Vmm_commands.version_eq header.Vmm_commands.version version then begin
Logs.app (fun m -> m "%a" Vmm_commands.pp_wire (header, reply)) ;
Ok ()
end else begin
Logs.err (fun m -> m "version not equal") ;
@ -40,10 +40,10 @@ let read fd =
in
loop ()
let handle opt_socket id (cmd : Vmm_asn.wire_command) =
let sock, next = Vmm_commands.handle cmd in
let handle opt_socket id (cmd : Vmm_commands.t) =
let sock, next = Vmm_commands.endpoint cmd in
connect (socket sock opt_socket) >>= fun fd ->
let header = Vmm_asn.{ version ; sequence = 0L ; id } in
let header = Vmm_commands.{ version ; sequence = 0L ; id } in
Vmm_lwt.write_wire fd (header, `Command cmd) >>= function
| Error `Exception -> Lwt.return (Error (`Msg "couldn't write"))
| Ok () ->

2
app/vmmd.ml
View file

@ -29,7 +29,7 @@ let create c_fd process cont =
Logs.err (fun m -> m "error while reading from console") ;
Lwt.return_unit
| Ok (header, wire) ->
if not (Vmm_asn.version_eq version header.Vmm_asn.version) then begin
if not (Vmm_commands.version_eq version header.Vmm_commands.version) then begin
Logs.err (fun m -> m "invalid version while reading from console") ;
Lwt.return_unit
end else

4
provision/vmm_sign.ml
View file

@ -29,12 +29,12 @@ let sign dbname cacert key csr days =
with
| [ (_, `Unsupported (_, v)) as ext ] ->
Vmm_asn.cert_extension_of_cstruct v >>= fun (version, cmd) ->
(if Vmm_asn.version_eq version asn_version then
(if Vmm_commands.version_eq version asn_version then
Ok ()
else
Error (`Msg "unknown version in request")) >>= fun () ->
(* TODO l_exts / d_exts trouble *)
Logs.app (fun m -> m "signing %a" Vmm_asn.pp_wire_command cmd) ;
Logs.app (fun m -> m "signing %a" Vmm_commands.pp cmd) ;
Ok (ext :: l_exts) >>= fun extensions ->
sign ~dbname extensions issuer key csr (Duration.of_day days)
| _ -> Error (`Msg "none or multiple albatross extensions found")

179
src/vmm_asn.ml
View file

@ -1,6 +1,7 @@
(* (c) 2017 Hannes Mehnert, all rights reserved *)
open Vmm_core
open Vmm_commands
open Rresult
open Astring
@ -86,32 +87,6 @@ let image =
(explicit 1 octet_string)
(explicit 2 octet_string))
type version = [ `AV0 | `AV1 | `AV2 ]
let pp_version ppf v =
Fmt.int ppf
(match v with
| `AV0 -> 0
| `AV1 -> 1
| `AV2 -> 2)
let version_eq a b =
match a, b with
| `AV0, `AV0 -> true
| `AV1, `AV1 -> true
| `AV2, `AV2 -> true
| _ -> false
(* communication protocol *)
type console_cmd = [
| `Console_add
| `Console_subscribe
]
let pp_console_cmd ppf = function
| `Console_add -> Fmt.string ppf "console add"
| `Console_subscribe -> Fmt.string ppf "console subscribe"
let console_cmd =
let f = function
| `C1 () -> `Console_add
@ -141,6 +116,7 @@ let timeval =
(required ~label:"microseconds" int))
let ru =
let open Stats in
let f (utime, (stime, (maxrss, (ixrss, (idrss, (isrss, (minflt, (majflt, (nswap, (inblock, (outblock, (msgsnd, (msgrcv, (nsignals, (nvcsw, nivcsw))))))))))))))) =
{ utime ; stime ; maxrss ; ixrss ; idrss ; isrss ; minflt ; majflt ; nswap ; inblock ; outblock ; msgsnd ; msgrcv ; nsignals ; nvcsw ; nivcsw }
and g ru =
@ -173,6 +149,7 @@ let int32 =
Asn.S.map f g Asn.S.int
let ifdata =
let open Stats in
let f (name, (flags, (send_length, (max_send_length, (send_drops, (mtu, (baudrate, (input_packets, (input_errors, (output_packets, (output_errors, (collisions, (input_bytes, (output_bytes, (input_mcast, (output_mcast, (input_dropped, output_dropped))))))))))))))))) =
{ name; flags; send_length; max_send_length; send_drops; mtu; baudrate; input_packets; input_errors; output_packets; output_errors; collisions; input_bytes; output_bytes; input_mcast; output_mcast; input_dropped; output_dropped }
and g i =
@ -199,17 +176,6 @@ let ifdata =
@ (required ~label:"input_dropped" int64)
-@ (required ~label:"output_dropped" int64))
type stats_cmd = [
| `Stats_add of int * string list
| `Stats_remove
| `Stats_subscribe
]
let pp_stats_cmd ppf = function
| `Stats_add (pid, taps) -> Fmt.pf ppf "stats add: pid %d taps %a" pid Fmt.(list ~sep:(unit ", ") string) taps
| `Stats_remove -> Fmt.string ppf "stat remove"
| `Stats_subscribe -> Fmt.string ppf "stat subscribe"
let stats_cmd =
let f = function
| `C1 (pid, taps) -> `Stats_add (pid, taps)
@ -228,60 +194,56 @@ let stats_cmd =
(explicit 1 null)
(explicit 2 null))
let addr =
Asn.S.(sequence2
(required ~label:"ip" ipv4)
(required ~label:"port" int))
let log_event =
let f = function
| `C1 () -> `Startup
| `C2 (ip, port) -> `Login (ip, port)
| `C3 (ip, port) -> `Logout (ip, port)
| `C4 (pid, taps, block) -> `VM_start (pid, taps, block)
| `C5 (pid, status) ->
| `C2 (name, ip, port) -> `Login (name, ip, port)
| `C3 (name, ip, port) -> `Logout (name, ip, port)
| `C4 (name, pid, taps, block) -> `Vm_start (name, pid, taps, block)
| `C5 (name, pid, status) ->
let status' = match status with
| `C1 n -> `Exit n
| `C2 n -> `Signal n
| `C3 n -> `Stop n
in
`VM_stop (pid, status')
`Vm_stop (name, pid, status')
and g = function
| `Startup -> `C1 ()
| `Login (ip, port) -> `C2 (ip, port)
| `Logout (ip, port) -> `C3 (ip, port)
| `VM_start (pid, taps, block) -> `C4 (pid, taps, block)
| `VM_stop (pid, status) ->
| `Login (name, ip, port) -> `C2 (name, ip, port)
| `Logout (name, ip, port) -> `C3 (name, ip, port)
| `Vm_start (name, pid, taps, block) -> `C4 (name, pid, taps, block)
| `Vm_stop (name, pid, status) ->
let status' = match status with
| `Exit n -> `C1 n
| `Signal n -> `C2 n
| `Stop n -> `C3 n
in
`C5 (pid, status')
`C5 (name, pid, status')
in
let endp =
Asn.S.(sequence3
(required ~label:"name" (sequence_of utf8_string))
(required ~label:"ip" ipv4)
(required ~label:"port" int))
in
Asn.S.map f g @@
Asn.S.(choice5
(explicit 0 null)
(explicit 1 addr)
(explicit 2 addr)
(explicit 3 (sequence3
(explicit 1 endp)
(explicit 2 endp)
(explicit 3 (sequence4
(required ~label:"name" (sequence_of utf8_string))
(required ~label:"pid" int)
(required ~label:"taps" (sequence_of utf8_string))
(optional ~label:"block" utf8_string)))
(explicit 4 (sequence2
(explicit 4 (sequence3
(required ~label:"name" (sequence_of utf8_string))
(required ~label:"pid" int)
(required ~label:"status" (choice3
(explicit 0 int)
(explicit 1 int)
(explicit 2 int))))))
type log_cmd = [
| `Log_subscribe
]
let pp_log_cmd ppf = function
| `Log_subscribe -> Fmt.string ppf "log subscribe"
let log_cmd =
let f = function
| () -> `Log_subscribe
@ -291,19 +253,6 @@ let log_cmd =
Asn.S.map f g @@
Asn.S.null
type vm_cmd = [
| `Vm_info
| `Vm_create of vm_config
| `Vm_force_create of vm_config
| `Vm_destroy
]
let pp_vm_cmd ppf = function
| `Vm_info -> Fmt.string ppf "vm info"
| `Vm_create vm_config -> Fmt.pf ppf "create %a" pp_vm_config vm_config
| `Vm_force_create vm_config -> Fmt.pf ppf "force create %a" pp_vm_config vm_config
| `Vm_destroy -> Fmt.string ppf "vm destroy"
let vm_config =
let f (cpuid, requested_memory, block_device, network, vmimage, argv) =
let network = match network with None -> [] | Some xs -> xs in
@ -340,17 +289,6 @@ let vm_cmd =
(explicit 2 vm_config)
(explicit 3 null))
type policy_cmd = [
| `Policy_info
| `Policy_add of policy
| `Policy_remove
]
let pp_policy_cmd ppf = function
| `Policy_info -> Fmt.string ppf "policy info"
| `Policy_add policy -> Fmt.pf ppf "add policy: %a" pp_policy policy
| `Policy_remove -> Fmt.string ppf "policy remove"
let policy_cmd =
let f = function
| `C1 () -> `Policy_info
@ -380,22 +318,7 @@ let version =
in
Asn.S.map f g Asn.S.int
type wire_command = [
| `Console_cmd of console_cmd
| `Stats_cmd of stats_cmd
| `Log_cmd of log_cmd
| `Vm_cmd of vm_cmd
| `Policy_cmd of policy_cmd
]
let pp_wire_command ppf = function
| `Console_cmd c -> pp_console_cmd ppf c
| `Stats_cmd s -> pp_stats_cmd ppf s
| `Log_cmd l -> pp_log_cmd ppf l
| `Vm_cmd v -> pp_vm_cmd ppf v
| `Policy_cmd p -> pp_policy_cmd ppf p
let wire_command : wire_command Asn.S.t =
let wire_command =
let f = function
| `C1 console -> `Console_cmd console
| `C2 stats -> `Stats_cmd stats
@ -417,18 +340,6 @@ let wire_command : wire_command Asn.S.t =
(explicit 3 vm_cmd)
(explicit 4 policy_cmd))
type data = [
| `Console_data of Ptime.t * string
| `Stats_data of stats
| `Log_data of Ptime.t * Log.event
]
let pp_data ppf = function
| `Console_data (ts, line) -> Fmt.pf ppf "console data %a: %s"
(Ptime.pp_rfc3339 ()) ts line
| `Stats_data stats -> Fmt.pf ppf "stats data: %a" pp_stats stats
| `Log_data (ts, event) -> Fmt.pf ppf "log data: %a %a" (Ptime.pp_rfc3339 ()) ts Log.pp_event event
let data =
let f = function
| `C1 (timestamp, data) -> `Console_data (timestamp, data)
@ -455,13 +366,6 @@ let data =
(required ~label:"timestamp" utc_time)
(required ~label:"event" log_event))))
type header = {
version : version ;
sequence : int64 ;
id : id ;
}
let header =
let f (version, sequence, id) = { version ; sequence ; id }
and g h = h.version, h.sequence, h.id
@ -472,28 +376,6 @@ let header =
(required ~label:"sequence" int64)
(required ~label:"id" (sequence_of utf8_string)))
type success = [ `Empty | `String of string | `Policies of (id * policy) list | `Vms of (id * vm_config) list ]
let pp_success ppf = function
| `Empty -> Fmt.string ppf "success"
| `String data -> Fmt.pf ppf "success: %s" data
| `Policies ps -> Fmt.(list ~sep:(unit "@.") (pair ~sep:(unit ": ") pp_id pp_policy)) ppf ps
| `Vms vms -> Fmt.(list ~sep:(unit "@.") (pair ~sep:(unit ": ") pp_id pp_vm_config)) ppf vms
type wire = header * [
| `Command of wire_command
| `Success of success
| `Failure of string
| `Data of data ]
let pp_wire ppf (header, data) =
let id = header.id in
match data with
| `Command c -> Fmt.pf ppf "host %a: %a" pp_id id pp_wire_command c
| `Failure f -> Fmt.pf ppf "host %a: command failed %s" pp_id id f
| `Success s -> Fmt.pf ppf "host %a: %a" pp_id id pp_success s
| `Data d -> pp_data ppf d
let wire =
let f (header, payload) =
header,
@ -544,19 +426,16 @@ let wire =
(explicit 2 utf8_string)
(explicit 3 data))))
let wire_of_cstruct, wire_to_cstruct = projections_of wire
type log_entry = header * Ptime.t * Log.event
let wire_of_cstruct, (wire_to_cstruct : Vmm_commands.wire -> Cstruct.t) = projections_of wire
let log_entry =
Asn.S.(sequence3
(required ~label:"headet" header)
Asn.S.(sequence2
(required ~label:"timestamp" utc_time)
(required ~label:"event" log_event))
let log_entry_of_cstruct, log_entry_to_cstruct = projections_of log_entry
type cert_extension = version * wire_command
type cert_extension = version * t
let cert_extension =
Asn.S.(sequence2

85
src/vmm_asn.mli
View file

@ -9,89 +9,18 @@ open Vmm_core
(** OID in the Mirage namespace (enterprise arc 1.3.6.1.4.1.49836.43) *)
val oid : Asn.OID.t
(** {1 Encoding and decoding functions} *)
val wire_to_cstruct : Vmm_commands.wire -> Cstruct.t
(** The type of versions of the ASN.1 grammar defined above. *)
type version = [ `AV0 | `AV1 | `AV2 ]
val wire_of_cstruct : Cstruct.t -> (Vmm_commands.wire, [> `Msg of string ]) result
(** [version_eq a b] is true if [a] and [b] are equal. *)
val version_eq : version -> version -> bool
val log_entry_to_cstruct : Log.t -> Cstruct.t
(** [pp_version ppf version] pretty prints [version] onto [ppf]. *)
val pp_version : version Fmt.t
val log_entry_of_cstruct : Cstruct.t -> (Log.t, [> `Msg of string ]) result
type console_cmd = [
| `Console_add
| `Console_subscribe
]
type stats_cmd = [
| `Stats_add of int * string list
| `Stats_remove
| `Stats_subscribe
]
type log_cmd = [
| `Log_subscribe
]
type vm_cmd = [
| `Vm_info
| `Vm_create of vm_config
| `Vm_force_create of vm_config
| `Vm_destroy
]
type policy_cmd = [
| `Policy_info
| `Policy_add of policy
| `Policy_remove
]
type wire_command = [
| `Console_cmd of console_cmd
| `Stats_cmd of stats_cmd
| `Log_cmd of log_cmd
| `Vm_cmd of vm_cmd
| `Policy_cmd of policy_cmd ]
val pp_wire_command : wire_command Fmt.t
type data = [
| `Console_data of Ptime.t * string
| `Stats_data of stats
| `Log_data of Ptime.t * Log.event
]
val pp_data : data Fmt.t
type header = {
version : version ;
sequence : int64 ;
id : id ;
}
type wire = header * [
| `Command of wire_command
| `Success of [ `Empty | `String of string | `Policies of (id * policy) list | `Vms of (id * vm_config) list ]
| `Failure of string
| `Data of data ]
val pp_wire : wire Fmt.t
val wire_to_cstruct : wire -> Cstruct.t
val wire_of_cstruct : Cstruct.t -> (wire, [> `Msg of string ]) result
type log_entry = header * Ptime.t * Log.event
val log_entry_to_cstruct : log_entry -> Cstruct.t
val log_entry_of_cstruct : Cstruct.t -> (log_entry, [> `Msg of string ]) result
type cert_extension = version * wire_command
type cert_extension = Vmm_commands.version * Vmm_commands.t
val cert_extension_of_cstruct : Cstruct.t -> (cert_extension, [> `Msg of string ]) result
val cert_extension_to_cstruct : cert_extension -> Cstruct.t
val wire_command_of_cert : version -> X509.t -> (wire_command, [> `Msg of string ]) result
val wire_command_of_cert : Vmm_commands.version -> X509.t ->
(Vmm_commands.t, [> `Msg of string ]) result

126
src/vmm_commands.ml
View file

@ -1,10 +1,134 @@
(* (c) 2018 Hannes Mehnert, all rights reserved *)
(* the wire protocol *)
open Vmm_core
let handle = function
type version = [ `AV0 | `AV1 | `AV2 ]
let pp_version ppf v =
Fmt.int ppf
(match v with
| `AV0 -> 0
| `AV1 -> 1
| `AV2 -> 2)
let version_eq a b =
match a, b with
| `AV0, `AV0 -> true
| `AV1, `AV1 -> true
| `AV2, `AV2 -> true
| _ -> false
type console_cmd = [
| `Console_add
| `Console_subscribe
]
let pp_console_cmd ppf = function
| `Console_add -> Fmt.string ppf "console add"
| `Console_subscribe -> Fmt.string ppf "console subscribe"
type stats_cmd = [
| `Stats_add of int * string list
| `Stats_remove
| `Stats_subscribe
]
let pp_stats_cmd ppf = function
| `Stats_add (pid, taps) -> Fmt.pf ppf "stats add: pid %d taps %a" pid Fmt.(list ~sep:(unit ", ") string) taps
| `Stats_remove -> Fmt.string ppf "stat remove"
| `Stats_subscribe -> Fmt.string ppf "stat subscribe"
type log_cmd = [
| `Log_subscribe
]
let pp_log_cmd ppf = function
| `Log_subscribe -> Fmt.string ppf "log subscribe"
type vm_cmd = [
| `Vm_info
| `Vm_create of vm_config
| `Vm_force_create of vm_config
| `Vm_destroy
]
let pp_vm_cmd ppf = function
| `Vm_info -> Fmt.string ppf "vm info"
| `Vm_create vm_config -> Fmt.pf ppf "create %a" pp_vm_config vm_config
| `Vm_force_create vm_config -> Fmt.pf ppf "force create %a" pp_vm_config vm_config
| `Vm_destroy -> Fmt.string ppf "vm destroy"
type policy_cmd = [
| `Policy_info
| `Policy_add of policy
| `Policy_remove
]
let pp_policy_cmd ppf = function
| `Policy_info -> Fmt.string ppf "policy info"
| `Policy_add policy -> Fmt.pf ppf "add policy: %a" pp_policy policy
| `Policy_remove -> Fmt.string ppf "policy remove"
type t = [
| `Console_cmd of console_cmd
| `Stats_cmd of stats_cmd
| `Log_cmd of log_cmd
| `Vm_cmd of vm_cmd
| `Policy_cmd of policy_cmd
]
let pp ppf = function
| `Console_cmd c -> pp_console_cmd ppf c
| `Stats_cmd s -> pp_stats_cmd ppf s
| `Log_cmd l -> pp_log_cmd ppf l
| `Vm_cmd v -> pp_vm_cmd ppf v
| `Policy_cmd p -> pp_policy_cmd ppf p
type data = [
| `Console_data of Ptime.t * string
| `Stats_data of Stats.t
| `Log_data of Log.t
]
let pp_data ppf = function
| `Console_data (ts, line) -> Fmt.pf ppf "console data %a: %s"
(Ptime.pp_rfc3339 ()) ts line
| `Stats_data stats -> Fmt.pf ppf "stats data: %a" Stats.pp stats
| `Log_data log -> Fmt.pf ppf "log data: %a" Log.pp log
type header = {
version : version ;
sequence : int64 ;
id : id ;
}
type success = [ `Empty | `String of string | `Policies of (id * policy) list | `Vms of (id * vm_config) list ]
let pp_success ppf = function
| `Empty -> Fmt.string ppf "success"
| `String data -> Fmt.pf ppf "success: %s" data
| `Policies ps -> Fmt.(list ~sep:(unit "@.") (pair ~sep:(unit ": ") pp_id pp_policy)) ppf ps
| `Vms vms -> Fmt.(list ~sep:(unit "@.") (pair ~sep:(unit ": ") pp_id pp_vm_config)) ppf vms
type wire = header * [
| `Command of t
| `Success of success
| `Failure of string
| `Data of data ]
let pp_wire ppf (header, data) =
let id = header.id in
match data with
| `Command c -> Fmt.pf ppf "host %a: %a" pp_id id pp c
| `Failure f -> Fmt.pf ppf "host %a: command failed %s" pp_id id f
| `Success s -> Fmt.pf ppf "host %a: %a" pp_id id pp_success s
| `Data d -> pp_data ppf d
let endpoint = function
| `Vm_cmd _ -> `Vmmd, `End
| `Policy_cmd _ -> `Vmmd, `End
| `Stats_cmd _ -> `Stats, `Read
| `Console_cmd _ -> `Console, `Read
| `Log_cmd _ -> `Log, `Read

85
src/vmm_commands.mli
View file

@ -1,7 +1,78 @@
val handle :
[< `Console_cmd of 'a
| `Log_cmd of 'b
| `Policy_cmd of 'c
| `Stats_cmd of 'd
| `Vm_cmd of 'e ] ->
[> `Console | `Log | `Stats | `Vmmd ] * [> `End | `Read ]
open Vmm_core
(** The type of versions of the grammar defined below. *)
type version = [ `AV0 | `AV1 | `AV2 ]
(** [version_eq a b] is true if [a] and [b] are equal. *)
val version_eq : version -> version -> bool
(** [pp_version ppf version] pretty prints [version] onto [ppf]. *)
val pp_version : version Fmt.t
type console_cmd = [
| `Console_add
| `Console_subscribe
]
type stats_cmd = [
| `Stats_add of int * string list
| `Stats_remove
| `Stats_subscribe
]
type log_cmd = [
| `Log_subscribe
]
type vm_cmd = [
| `Vm_info
| `Vm_create of vm_config
| `Vm_force_create of vm_config
| `Vm_destroy
]
type policy_cmd = [
| `Policy_info
| `Policy_add of policy
| `Policy_remove
]
type t = [
| `Console_cmd of console_cmd
| `Stats_cmd of stats_cmd
| `Log_cmd of log_cmd
| `Vm_cmd of vm_cmd
| `Policy_cmd of policy_cmd ]
val pp : t Fmt.t
type data = [
| `Console_data of Ptime.t * string
| `Stats_data of Stats.t
| `Log_data of Log.t
]
val pp_data : data Fmt.t
type header = {
version : version ;
sequence : int64 ;
id : id ;
}
type success = [
| `Empty
| `String of string
| `Policies of (id * policy) list
| `Vms of (id * vm_config) list
]
type wire = header * [
| `Command of t
| `Success of success
| `Failure of string
| `Data of data ]
val pp_wire : wire Fmt.t
val endpoint : t -> service * [ `End | `Read ]

80
src/vmm_core.ml
View file

@ -7,6 +7,8 @@ open Rresult.R.Infix
let tmpdir = Fpath.(v "/var" / "run" / "albatross")
let dbdir = Fpath.(v "/var" / "db" / "albatross")
type service = [ `Console | `Log | `Stats | `Vmmd ]
let socket_path t =
let path name = Fpath.(tmpdir / "util" / name + "sock") in
let path = match t with
@ -185,7 +187,8 @@ let separate_chain = function
| [ leaf ] -> Ok (leaf, [])
| leaf :: xs -> Ok (leaf, List.rev xs)
type rusage = {
module Stats = struct
type rusage = {
utime : (int64 * int) ;
stime : (int64 * int) ;
maxrss : int64 ;
@ -202,18 +205,18 @@ type rusage = {
nsignals : int64 ;
nvcsw : int64 ;
nivcsw : int64 ;
}
}
let pp_rusage ppf r =
let pp_rusage ppf r =
Fmt.pf ppf "utime %Lu.%d stime %Lu.%d maxrss %Lu ixrss %Lu idrss %Lu isrss %Lu minflt %Lu majflt %Lu nswap %Lu inblock %Lu outblock %Lu msgsnd %Lu msgrcv %Lu signals %Lu nvcsw %Lu nivcsw %Lu"
(fst r.utime) (snd r.utime) (fst r.stime) (snd r.stime) r.maxrss r.ixrss r.idrss r.isrss r.minflt r.majflt r.nswap r.inblock r.outblock r.msgsnd r.msgrcv r.nsignals r.nvcsw r.nivcsw
type vmm_stats = (string * int64) list
let pp_vmm_stats ppf vmm =
type vmm = (string * int64) list
let pp_vmm ppf vmm =
Fmt.(list ~sep:(unit "@,") (pair ~sep:(unit ": ") string int64)) ppf vmm
type ifdata = {
type ifdata = {
name : string ;
flags : int32 ;
send_length : int32 ;
@ -232,41 +235,56 @@ type ifdata = {
output_mcast : int64 ;
input_dropped : int64 ;
output_dropped : int64 ;
}
}
let pp_ifdata ppf i =
let pp_ifdata ppf i =
Fmt.pf ppf "name %s flags %lX send_length %lu max_send_length %lu send_drops %lu mtu %lu baudrate %Lu input_packets %Lu input_errors %Lu output_packets %Lu output_errors %Lu collisions %Lu input_bytes %Lu output_bytes %Lu input_mcast %Lu output_mcast %Lu input_dropped %Lu output_dropped %Lu"
i.name i.flags i.send_length i.max_send_length i.send_drops i.mtu i.baudrate i.input_packets i.input_errors i.output_packets i.output_errors i.collisions i.input_bytes i.output_bytes i.input_mcast i.output_mcast i.input_dropped i.output_dropped
type stats = rusage * vmm_stats option * ifdata list
let pp_stats ppf (ru, vmm, ifs) =
type t = rusage * vmm option * ifdata list
let pp ppf (ru, vmm, ifs) =
Fmt.pf ppf "%a@.%a@.%a"
pp_rusage ru
Fmt.(option ~none:(unit "no vmm stats") pp_vmm_stats) vmm
Fmt.(option ~none:(unit "no vmm stats") pp_vmm) vmm
Fmt.(list ~sep:(unit "@.@.") pp_ifdata) ifs
end
type process_exit = [ `Exit of int | `Signal of int | `Stop of int ]
let pp_process_exit ppf = function
| `Exit n -> Fmt.pf ppf "exit %a (%d)" Fmt.Dump.signal n n
| `Signal n -> Fmt.pf ppf "signal %a (%d)" Fmt.Dump.signal n n
| `Stop n -> Fmt.pf ppf "stop %a (%d)" Fmt.Dump.signal n n
module Log = struct
type event =
[ `Startup
| `Login of Ipaddr.V4.t * int
| `Logout of Ipaddr.V4.t * int
| `VM_start of int * string list * string option
| `VM_stop of int * [ `Exit of int | `Signal of int | `Stop of int ]
type log_event = [
| `Login of id * Ipaddr.V4.t * int
| `Logout of id * Ipaddr.V4.t * int
| `Startup
| `Vm_start of id * int * string list * string option
| `Vm_stop of id * int * process_exit
]
let pp_event ppf = function
| `Startup -> Fmt.(pf ppf "STARTUP")
| `Login (ip, port) -> Fmt.pf ppf "LOGIN %a:%d" Ipaddr.V4.pp_hum ip port
| `Logout (ip, port) -> Fmt.pf ppf "LOGOUT %a:%d" Ipaddr.V4.pp_hum ip port
| `VM_start (pid, taps, block) ->
Fmt.pf ppf "STARTED %d (tap %a, block %a)"
pid Fmt.(list ~sep:(unit "; ") string) taps
let name = function
| `Startup -> []
| `Login (name, _, _) -> name
| `Logout (name, _, _) -> name
| `Vm_start (name, _, _ ,_) -> name
| `Vm_stop (name, _, _) -> name
let pp_log_event ppf = function
| `Startup -> Fmt.(pf ppf "startup")
| `Login (name, ip, port) -> Fmt.pf ppf "%a login %a:%d" pp_id name Ipaddr.V4.pp_hum ip port
| `Logout (name, ip, port) -> Fmt.pf ppf "%a logout %a:%d" pp_id name Ipaddr.V4.pp_hum ip port
| `Vm_start (name, pid, taps, block) ->
Fmt.pf ppf "%a started %d (tap %a, block %a)"
pp_id name pid Fmt.(list ~sep:(unit "; ") string) taps
Fmt.(option ~none:(unit "no") string) block
| `VM_stop (pid, code) ->
let s, c = match code with
| `Exit n -> "exit", n
| `Signal n -> "signal", n
| `Stop n -> "stop", n
in
Fmt.pf ppf "STOPPED %d with %s %a" pid s Fmt.Dump.signal c
| `Vm_stop (name, pid, code) ->
Fmt.pf ppf "%a stopped %d with %a" pp_id name pid pp_process_exit code
type t = Ptime.t * log_event
let pp ppf (ts, ev) =
Fmt.pf ppf "%a: %a" (Ptime.pp_rfc3339 ()) ts pp_log_event ev
end

72
src/vmm_core.mli
View file

@ -1,8 +1,11 @@
val tmpdir : Fpath.t
val dbdir : Fpath.t
val socket_path : [< `Console | `Log | `Stats | `Vmmd ] -> string
val pp_socket :
Format.formatter -> [< `Console | `Log | `Stats | `Vmmd ] -> unit
type service = [ `Console | `Log | `Stats | `Vmmd ]
val socket_path : service -> string
val pp_socket : service Fmt.t
module I : sig type t = int val compare : int -> int -> int end
module IS : sig
@ -14,9 +17,6 @@ module IM : sig
include Map.S with type key = I.t
end
type vmtype = [ `Hvt_amd64 | `Hvt_amd64_compressed | `Hvt_arm64 ]
val pp_vmtype : vmtype Fmt.t
type id = string list
val string_of_id : string list -> string
val id_of_string : string -> string list
@ -45,6 +45,9 @@ val sub_block : 'a option -> 'a option -> bool
val sub_cpu : IS.t -> IS.t -> bool
val is_sub : super:policy -> sub:policy -> bool
type vmtype = [ `Hvt_amd64 | `Hvt_amd64_compressed | `Hvt_arm64 ]
val pp_vmtype : vmtype Fmt.t
type vm_config = {
cpuid : int;
requested_memory : int;
@ -79,7 +82,8 @@ val name : X509.t -> string
val separate_chain : 'a list -> ('a * 'a list, [> `Msg of string ]) result
type rusage = {
module Stats : sig
type rusage = {
utime : int64 * int;
stime : int64 * int;
maxrss : int64;
@ -96,13 +100,13 @@ type rusage = {
nsignals : int64;
nvcsw : int64;
nivcsw : int64;
}
val pp_rusage : rusage Fmt.t
}
val pp_rusage : rusage Fmt.t
type vmm_stats = (string * int64) list
val pp_vmm_stats : vmm_stats Fmt.t
type vmm = (string * int64) list
val pp_vmm : vmm Fmt.t
type ifdata = {
type ifdata = {
name : string;
flags : int32;
send_length : int32;
@ -121,26 +125,30 @@ type ifdata = {
output_mcast : int64;
input_dropped : int64;
output_dropped : int64;
}
val pp_ifdata : ifdata Fmt.t
}
val pp_ifdata : ifdata Fmt.t
type stats = rusage * vmm_stats option * ifdata list
val pp_stats : stats Fmt.t
type t = rusage * vmm option * ifdata list
val pp : t Fmt.t
end
module Log :
sig
type event =
[ `Login of Ipaddr.V4.t * int
| `Logout of Ipaddr.V4.t * int
type process_exit = [ `Exit of int | `Signal of int | `Stop of int ]
val pp_process_exit : process_exit Fmt.t
module Log : sig
type log_event = [
| `Login of id * Ipaddr.V4.t * int
| `Logout of id * Ipaddr.V4.t * int
| `Startup
| `VM_start of int * string list * string option
| `VM_stop of int * [ `Exit of int | `Signal of int | `Stop of int ] ]
val pp_event :
Format.formatter ->
[< `Login of Ipaddr.V4.t * int
| `Logout of Ipaddr.V4.t * int
| `Startup
| `VM_start of int * string list * string option
| `VM_stop of int * [< `Exit of int | `Signal of int | `Stop of int ] ] ->
unit
end
| `Vm_start of id * int * string list * string option
| `Vm_stop of id * int * process_exit ]
val name : log_event -> id
val pp_log_event : log_event Fmt.t
type t = Ptime.t * log_event
val pp : t Fmt.t
end

36
src/vmm_engine.ml
View file

@ -8,7 +8,7 @@ open Rresult
open R.Infix
type 'a t = {
wire_version : Vmm_asn.version ;
wire_version : Vmm_commands.version ;
console_counter : int64 ;
stats_counter : int64 ;
log_counter : int64 ;
@ -26,22 +26,22 @@ let init wire_version = {
}
type service_out = [
| `Stat of Vmm_asn.wire
| `Log of Vmm_asn.wire
| `Cons of Vmm_asn.wire
| `Stat of Vmm_commands.wire
| `Log of Vmm_commands.wire
| `Cons of Vmm_commands.wire
]
type out = [ service_out | `Data of Vmm_asn.wire ]
type out = [ service_out | `Data of Vmm_commands.wire ]
let log t id event =
let data = `Log_data (Ptime_clock.now (), event) in
let header = Vmm_asn.{ version = t.wire_version ; sequence = t.log_counter ; id } in
let data = (Ptime_clock.now (), event) in
let header = Vmm_commands.{ version = t.wire_version ; sequence = t.log_counter ; id } in
let log_counter = Int64.succ t.log_counter in
Logs.debug (fun m -> m "LOG %a" Log.pp_event event) ;
({ t with log_counter }, `Log (header, `Data data))
Logs.debug (fun m -> m "log %a" Log.pp data) ;
({ t with log_counter }, `Log (header, `Data (`Log_data data)))
let handle_create t hdr vm_config =
let name = hdr.Vmm_asn.id in
let name = hdr.Vmm_commands.id in
(match Vmm_resources.find_vm t.resources name with
| Some _ -> Error (`Msg "VM with same name is already running")
| None -> Ok ()) >>= fun () ->
@ -54,7 +54,7 @@ let handle_create t hdr vm_config =
Vmm_unix.prepare name vm_config >>= fun taps ->
Logs.debug (fun m -> m "prepared vm with taps %a" Fmt.(list ~sep:(unit ",@ ") string) taps) ;
let cons_out =
let header = Vmm_asn.{ version = t.wire_version ; sequence = t.console_counter ; id = name } in
let header = Vmm_commands.{ version = t.wire_version ; sequence = t.console_counter ; id = name } in
(header, `Command (`Console_cmd `Console_add))
in
Ok ({ t with console_counter = Int64.succ t.console_counter }, [ `Cons cons_out ],
@ -65,13 +65,13 @@ let handle_create t hdr vm_config =
Vmm_resources.insert_vm t.resources name vm >>= fun resources ->
let tasks = String.Map.add (string_of_id name) task t.tasks in
let t = { t with resources ; tasks } in
let t, out = log t name (`VM_start (vm.pid, vm.taps, None)) in
let t, out = log t name (`Vm_start (name, vm.pid, vm.taps, None)) in
let data = `Success (`String "created VM") in
Ok (t, [ `Data (hdr, data) ; out ], name, vm)))
let setup_stats t name vm =
let stat_out = `Stats_add (vm.pid, vm.taps) in
let header = Vmm_asn.{ version = t.wire_version ; sequence = t.stats_counter ; id = name } in
let header = Vmm_commands.{ version = t.wire_version ; sequence = t.stats_counter ; id = name } in
let t = { t with stats_counter = Int64.succ t.stats_counter } in
t, [ `Stat (header, `Command (`Stats_cmd stat_out)) ]
@ -80,10 +80,10 @@ let handle_shutdown t name vm r =
| Ok () -> ()
| Error (`Msg e) -> Logs.warn (fun m -> m "%s while shutdown vm %a" e pp_vm vm)) ;
let resources = Vmm_resources.remove t.resources name in
let header = Vmm_asn.{ version = t.wire_version ; sequence = t.stats_counter ; id = name } in
let header = Vmm_commands.{ version = t.wire_version ; sequence = t.stats_counter ; id = name } in
let tasks = String.Map.remove (string_of_id name) t.tasks in
let t = { t with stats_counter = Int64.succ t.stats_counter ; resources ; tasks } in
let t, logout = log t name (`VM_stop (vm.pid, r))
let t, logout = log t name (`Vm_stop (name, vm.pid, r))
in
(t, [ `Stat (header, `Command (`Stats_cmd `Stats_remove)) ; logout ])
@ -96,12 +96,12 @@ let handle_command t (header, payload) =
(t, [ `Data (header, out) ], `End)
in
msg_to_err (
let id = header.Vmm_asn.id in
let id = header.Vmm_commands.id in
match payload with
| `Command (`Policy_cmd pc) ->
begin match pc with
| `Policy_remove ->
Logs.debug (fun m -> m "remove policy %a" pp_id header.Vmm_asn.id) ;
Logs.debug (fun m -> m "remove policy %a" pp_id header.Vmm_commands.id) ;
let resources = Vmm_resources.remove t.resources id in
Ok ({ t with resources }, [ `Data (header, `Success (`String "removed policy")) ], `End)
| `Policy_add policy ->
@ -179,5 +179,5 @@ let handle_command t (header, payload) =
end
end
| _ ->
Logs.err (fun m -> m "ignoring %a" Vmm_asn.pp_wire (header, payload)) ;
Logs.err (fun m -> m "ignoring %a" Vmm_commands.pp_wire (header, payload)) ;
Error (`Msg "unknown command"))

12
src/vmm_engine.mli
View file

@ -1,20 +1,20 @@
type 'a t
val init : Vmm_asn.version -> 'a t
val init : Vmm_commands.version -> 'a t
type service_out = [
| `Stat of Vmm_asn.wire
| `Log of Vmm_asn.wire
| `Cons of Vmm_asn.wire
| `Stat of Vmm_commands.wire
| `Log of Vmm_commands.wire
| `Cons of Vmm_commands.wire
]
type out = [ service_out | `Data of Vmm_asn.wire ]
type out = [ service_out | `Data of Vmm_commands.wire ]
val handle_shutdown : 'a t -> Vmm_core.id -> Vmm_core.vm ->
[ `Exit of int | `Signal of int | `Stop of int ] -> 'a t * out list
val handle_command : 'a t -> Vmm_asn.wire ->
val handle_command : 'a t -> Vmm_commands.wire ->
'a t * out list *
[ `Create of 'c t -> 'c -> ('c t * out list * Vmm_core.id * Vmm_core.vm, [> Rresult.R.msg ]) result
| `End

22
src/vmm_lwt.mli
View file

@ -1,16 +1,20 @@
val pp_sockaddr : Format.formatter -> Lwt_unix.sockaddr -> unit
val pp_process_status : Format.formatter -> Unix.process_status -> unit
val ret :
Unix.process_status -> [> `Exit of int | `Signal of int | `Stop of int ]
val ret : Unix.process_status -> Vmm_core.process_exit
val waitpid : int -> (int * Lwt_unix.process_status, unit) result Lwt.t
val wait_and_clear :
int ->
Unix.file_descr -> [> `Exit of int | `Signal of int | `Stop of int ] Lwt.t
val read_wire :
Lwt_unix.file_descr ->
(Vmm_asn.wire, [> `Eof | `Exception | `Toomuch ]) result Lwt.t
val wait_and_clear : int -> Unix.file_descr -> Vmm_core.process_exit Lwt.t
val read_wire : Lwt_unix.file_descr ->
(Vmm_commands.wire, [> `Eof | `Exception | `Toomuch ]) result Lwt.t
val write_raw :
Lwt_unix.file_descr -> bytes -> (unit, [> `Exception ]) result Lwt.t
val write_wire :
Lwt_unix.file_descr -> Vmm_asn.wire -> (unit, [> `Exception ]) result Lwt.t
Lwt_unix.file_descr -> Vmm_commands.wire -> (unit, [> `Exception ]) result Lwt.t
val safe_close : Lwt_unix.file_descr -> unit Lwt.t

8
src/vmm_tls.mli
View file

@ -1,5 +1,5 @@
val read_tls :
Tls_lwt.Unix.t ->
(Vmm_asn.wire, [> `Eof | `Exception | `Toomuch ]) result Lwt.t
val read_tls : Tls_lwt.Unix.t ->
(Vmm_commands.wire, [> `Eof | `Exception | `Toomuch ]) result Lwt.t
val write_tls :
Tls_lwt.Unix.t -> Vmm_asn.wire -> (unit, [> `Exception ]) result Lwt.t
Tls_lwt.Unix.t -> Vmm_commands.wire -> (unit, [> `Exception ]) result Lwt.t

15
stats/vmm_stats.ml
View file

@ -5,9 +5,9 @@ open Rresult.R.Infix
open Vmm_core
external sysctl_rusage : int -> rusage = "vmmanage_sysctl_rusage"
external sysctl_rusage : int -> Stats.rusage = "vmmanage_sysctl_rusage"
external sysctl_ifcount : unit -> int = "vmmanage_sysctl_ifcount"
external sysctl_ifdata : int -> ifdata = "vmmanage_sysctl_ifdata"
external sysctl_ifdata : int -> Stats.ifdata = "vmmanage_sysctl_ifdata"
type vmctx
@ -18,8 +18,6 @@ external vmmapi_stats : vmctx -> int64 list = "vmmanage_vmmapi_stats"
let my_version = `AV2
let bcast = ref 0L
let descr = ref []
type 'a t = {
@ -119,8 +117,7 @@ let tick t =
match Vmm_core.drop_super ~super:id ~sub:vmid with
| None -> Logs.err (fun m -> m "couldn't drop super %a from sub %a" Vmm_core.pp_id id Vmm_core.pp_id vmid) ; out
| Some real_id ->
let header = Vmm_asn.{ version = my_version ; sequence = !bcast ; id = real_id } in
bcast := Int64.succ !bcast ;
let header = Vmm_commands.{ version = my_version ; sequence = 0L ; id = real_id } in
((socket, vmid, (header, `Data (`Stats_data stats))) :: out))
out xs)
[] (Vmm_trie.all t'.vmid_pid)
@ -174,13 +171,13 @@ let remove_vmids t vmids =
let handle t socket (header, wire) =
let r =
if not (Vmm_asn.version_eq my_version header.Vmm_asn.version) then
if not (Vmm_commands.version_eq my_version header.Vmm_commands.version) then
Error (`Msg "cannot handle version")
else
match wire with
| `Command (`Stats_cmd cmd) ->
begin
let id = header.Vmm_asn.id in
let id = header.Vmm_commands.id in
match cmd with
| `Stats_add (pid, taps) ->
add_pid t id pid taps >>= fun t ->
@ -193,7 +190,7 @@ let handle t socket (header, wire) =
Ok ({ t with name_sockets }, `None, close, Some "subscribed")
end
| _ ->
Logs.warn (fun m -> m "ignoring %a" Vmm_asn.pp_wire (header, wire)) ;
Logs.warn (fun m -> m "ignoring %a" Vmm_commands.pp_wire (header, wire)) ;
Ok (t, `None, None, None)
in
match r with