move more stuff around

This commit is contained in:
Hannes Mehnert 2018-10-24 00:10:08 +02:00
parent d513269453
commit a064c7f58e
13 changed files with 115 additions and 111 deletions

3
_tags
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@ -6,7 +6,8 @@ true : package(rresult logs ipaddr x509 tls bos hex ptime ptime.clock.os astring
<src/vmm_compress.ml>: package(decompress)
<src/vmm_asn.{ml,mli}>: package(asn1-combinators)
<src/vmm_lwt.{ml,mli}>: package(lwt lwt.unix)
<src/vmm_tls.{ml,mli}>: package(lwt tls.lwt)
<src/vmm_tls_lwt.{ml,mli}>: package(lwt tls.lwt)
<src/vmm_tls.{ml,mli}>: package(x509)
<app/*>: package(lwt.unix cmdliner logs.fmt fmt.cli logs.cli fmt.tty lwt ipaddr.unix decompress)
<app/vmm_client.{ml,native,byte}>: package(nocrypto tls.lwt nocrypto.lwt)

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@ -3,7 +3,7 @@
open Lwt.Infix
let rec read_tls_write_cons t =
Vmm_tls.read_tls t >>= function
Vmm_tls_lwt.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_commands.pp_wire wire) ;

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@ -45,7 +45,7 @@ let read fd tls =
| Error _ -> Lwt.return (Error (`Msg "exception while reading"))
| Ok wire ->
Logs.debug (fun m -> m "read proxying %a" Vmm_commands.pp_wire wire) ;
Vmm_tls.write_tls tls wire >>= function
Vmm_tls_lwt.write_tls tls wire >>= function
| Ok () -> loop ()
| Error `Exception -> Lwt.return (Error (`Msg "exception"))
in
@ -56,13 +56,13 @@ let process fd tls =
| Error _ -> Lwt.return (Error (`Msg "read error"))
| Ok wire ->
Logs.debug (fun m -> m "proxying %a" Vmm_commands.pp_wire wire) ;
Vmm_tls.write_tls tls wire >|= function
Vmm_tls_lwt.write_tls tls wire >|= function
| Ok () -> Ok ()
| Error `Exception -> Error (`Msg "exception on write")
let handle ca (tls, addr) =
client_auth ca tls addr >>= fun chain ->
match Vmm_x509.handle addr chain with
match Vmm_tls.handle addr my_version chain with
| Error (`Msg m) -> Lwt.fail_with m
| Ok (name, cmd) ->
let sock, next = Vmm_commands.endpoint cmd in

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@ -18,7 +18,7 @@ open Lwt.Infix
let version = `AV2
let state = ref (Vmm_engine.init version)
let state = ref (Vmm_vmmd.init version)
let create c_fd process cont =
Vmm_lwt.read_wire c_fd >>= function
@ -55,13 +55,13 @@ let create c_fd process cont =
s := { !s with vm_created = succ !s.vm_created } ;
Lwt.async (fun () ->
Vmm_lwt.wait_and_clear vm.Vmm_core.pid vm.Vmm_core.stdout >>= fun r ->
let state', out' = Vmm_engine.handle_shutdown !state name vm r in
let state', out' = Vmm_vmmd.handle_shutdown !state name vm r in
s := { !s with vm_destroyed = succ !s.vm_destroyed } ;
state := state' ;
process out' >|= fun () ->
Lwt.wakeup wakeme ()) ;
process out >>= fun () ->
let state', out = Vmm_engine.setup_stats !state name vm in
let state', out = Vmm_vmmd.setup_stats !state name vm in
state := state' ;
process out (* TODO: need to read from stats socket! *)
@ -83,7 +83,7 @@ let handle out c_fd fd addr =
*)
let process xs =
Lwt_list.iter_p (function
| #Vmm_engine.service_out as o -> out o
| #Vmm_vmmd.service_out as o -> out o
| `Data cs ->
(* rather: terminate connection *)
Vmm_lwt.write_wire fd cs >|= fun _ -> ()) xs
@ -95,7 +95,7 @@ let handle out c_fd fd addr =
Lwt.return_unit
| Ok wire ->
Logs.debug (fun m -> m "read sth") ;
let state', data, next = Vmm_engine.handle_command !state wire in
let state', data, next = Vmm_vmmd.handle_command !state wire in
state := state' ;
process data >>= fun () ->
match next with

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@ -1,10 +1,10 @@
Vmm_asn
Vmm_lwt
Vmm_tls_lwt
Vmm_tls
Vmm_engine
Vmm_vmmd
Vmm_commands
Vmm_core
Vmm_engine
Vmm_resources
Vmm_trie
Vmm_unix

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@ -1,64 +1,30 @@
(* (c) 2017 Hannes Mehnert, all rights reserved *)
open Rresult.R.Infix
open Lwt.Infix
open Vmm_core
let read_tls t =
let rec r_n buf off tot =
let l = tot - off in
if l = 0 then
Lwt.return (Ok ())
else
Lwt.catch (fun () ->
Tls_lwt.Unix.read t (Cstruct.shift buf off) >>= function
| 0 ->
Logs.err (fun m -> m "TLS: end of file") ;
Lwt.return (Error `Eof)
| x when x == l -> Lwt.return (Ok ())
| x when x < l -> r_n buf (off + x) tot
| _ ->
Logs.err (fun m -> m "TLS: read too much, shouldn't happen") ;
Lwt.return (Error `Toomuch))
(function
| Tls_lwt.Tls_failure a ->
Logs.err (fun m -> m "TLS read failure: %s" (Tls.Engine.string_of_failure a)) ;
Lwt.return (Error `Exception)
| e ->
Logs.err (fun m -> m "TLS read exception %s" (Printexc.to_string e)) ;
Lwt.return (Error `Exception))
in
let buf = Cstruct.create 4 in
r_n buf 0 4 >>= function
| Error e -> Lwt.return (Error e)
| Ok () ->
let len = Cstruct.BE.get_uint32 buf 0 in
if len > 0l then
let b = Cstruct.create (Int32.to_int len) in
r_n b 0 (Int32.to_int len) >|= function
| Error e -> Error e
| Ok () ->
(* Logs.debug (fun m -> m "TLS read id %d %a tag %d data %a"
hdr.Vmm_wire.id Vmm_wire.pp_version hdr.Vmm_wire.version hdr.Vmm_wire.tag
Cstruct.hexdump_pp b) ; *)
match Vmm_asn.wire_of_cstruct b with
| Ok w -> Ok w
| Error (`Msg msg) ->
Logs.err (fun m -> m "error %s while parsing data" msg) ;
Error `Exception
else
Lwt.return (Error `Eof)
(* let check_policy =
(* get names and static resources *)
List.fold_left (fun acc ca ->
acc >>= fun acc ->
Vmm_asn.delegation_of_cert asn_version ca >>= fun res ->
let name = id ca in
Ok ((name, res) :: acc))
(Ok []) chain >>= fun policies ->
(* check static policies *)
Logs.debug (fun m -> m "now checking static policies") ;
check_policies vm_config (List.map snd policies) >>= fun () ->
*)
let write_tls s wire =
let data = Vmm_asn.wire_to_cstruct wire in
let dlen = Cstruct.create 4 in
Cstruct.BE.set_uint32 dlen 0 (Int32.of_int (Cstruct.len data)) ;
let buf = Cstruct.(append dlen data) in
(* Logs.debug (fun m -> m "TLS write %a" Cstruct.hexdump_pp (Cstruct.of_string buf)) ; *)
Lwt.catch
(fun () -> Tls_lwt.Unix.write s buf >|= fun () -> Ok ())
(function
| Tls_lwt.Tls_failure a ->
Logs.err (fun m -> m "tls failure: %s" (Tls.Engine.string_of_failure a)) ;
Lwt.return (Error `Exception)
| e ->
Logs.err (fun m -> m "TLS write exception %s" (Printexc.to_string e)) ;
Lwt.return (Error `Exception))
let handle _addr version chain =
separate_chain chain >>= fun (leaf, chain) ->
let prefix = List.map name chain in
let name = prefix @ [ name leaf ] in
Logs.debug (fun m -> m "leaf is %s, chain %a"
(X509.common_name_to_string leaf)
Fmt.(list ~sep:(unit " -> ") string)
(List.map X509.common_name_to_string chain)) ;
(* TODO: inspect top-level-cert of chain. *)
(* TODO: logging let login_hdr, login_ev = Log.hdr name, `Login addr in *)
(* TODO: update policies! *)
Vmm_asn.wire_command_of_cert version leaf >>| fun wire ->
(name, wire)

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@ -1,5 +1,5 @@
val read_tls : Tls_lwt.Unix.t ->
(Vmm_commands.wire, [> `Eof | `Exception | `Toomuch ]) result Lwt.t
val write_tls :
Tls_lwt.Unix.t -> Vmm_commands.wire -> (unit, [> `Exception ]) result Lwt.t
val handle :
'a -> Vmm_commands.version ->
X509.t list ->
(string list * Vmm_commands.t, [> `Msg of string ]) Result.result

64
src/vmm_tls_lwt.ml Normal file
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@ -0,0 +1,64 @@
(* (c) 2017 Hannes Mehnert, all rights reserved *)
open Lwt.Infix
let read_tls t =
let rec r_n buf off tot =
let l = tot - off in
if l = 0 then
Lwt.return (Ok ())
else
Lwt.catch (fun () ->
Tls_lwt.Unix.read t (Cstruct.shift buf off) >>= function
| 0 ->
Logs.err (fun m -> m "TLS: end of file") ;
Lwt.return (Error `Eof)
| x when x == l -> Lwt.return (Ok ())
| x when x < l -> r_n buf (off + x) tot
| _ ->
Logs.err (fun m -> m "TLS: read too much, shouldn't happen") ;
Lwt.return (Error `Toomuch))
(function
| Tls_lwt.Tls_failure a ->
Logs.err (fun m -> m "TLS read failure: %s" (Tls.Engine.string_of_failure a)) ;
Lwt.return (Error `Exception)
| e ->
Logs.err (fun m -> m "TLS read exception %s" (Printexc.to_string e)) ;
Lwt.return (Error `Exception))
in
let buf = Cstruct.create 4 in
r_n buf 0 4 >>= function
| Error e -> Lwt.return (Error e)
| Ok () ->
let len = Cstruct.BE.get_uint32 buf 0 in
if len > 0l then
let b = Cstruct.create (Int32.to_int len) in
r_n b 0 (Int32.to_int len) >|= function
| Error e -> Error e
| Ok () ->
(* Logs.debug (fun m -> m "TLS read id %d %a tag %d data %a"
hdr.Vmm_wire.id Vmm_wire.pp_version hdr.Vmm_wire.version hdr.Vmm_wire.tag
Cstruct.hexdump_pp b) ; *)
match Vmm_asn.wire_of_cstruct b with
| Ok w -> Ok w
| Error (`Msg msg) ->
Logs.err (fun m -> m "error %s while parsing data" msg) ;
Error `Exception
else
Lwt.return (Error `Eof)
let write_tls s wire =
let data = Vmm_asn.wire_to_cstruct wire in
let dlen = Cstruct.create 4 in
Cstruct.BE.set_uint32 dlen 0 (Int32.of_int (Cstruct.len data)) ;
let buf = Cstruct.(append dlen data) in
(* Logs.debug (fun m -> m "TLS write %a" Cstruct.hexdump_pp (Cstruct.of_string buf)) ; *)
Lwt.catch
(fun () -> Tls_lwt.Unix.write s buf >|= fun () -> Ok ())
(function
| Tls_lwt.Tls_failure a ->
Logs.err (fun m -> m "tls failure: %s" (Tls.Engine.string_of_failure a)) ;
Lwt.return (Error `Exception)
| e ->
Logs.err (fun m -> m "TLS write exception %s" (Printexc.to_string e)) ;
Lwt.return (Error `Exception))

5
src/vmm_tls_lwt.mli Normal file
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@ -0,0 +1,5 @@
val read_tls : Tls_lwt.Unix.t ->
(Vmm_commands.wire, [> `Eof | `Exception | `Toomuch ]) result Lwt.t
val write_tls :
Tls_lwt.Unix.t -> Vmm_commands.wire -> (unit, [> `Exception ]) result Lwt.t

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@ -1,32 +0,0 @@
open Rresult.R.Infix
open Vmm_core
let asn_version = `AV2
(* let check_policy =
(* get names and static resources *)
List.fold_left (fun acc ca ->
acc >>= fun acc ->
Vmm_asn.delegation_of_cert asn_version ca >>= fun res ->
let name = id ca in
Ok ((name, res) :: acc))
(Ok []) chain >>= fun policies ->
(* check static policies *)
Logs.debug (fun m -> m "now checking static policies") ;
check_policies vm_config (List.map snd policies) >>= fun () ->
*)
let handle _addr chain =
separate_chain chain >>= fun (leaf, chain) ->
let prefix = List.map name chain in
let name = prefix @ [ name leaf ] in
Logs.debug (fun m -> m "leaf is %s, chain %a"
(X509.common_name_to_string leaf)
Fmt.(list ~sep:(unit " -> ") string)
(List.map X509.common_name_to_string chain)) ;
(* TODO: inspect top-level-cert of chain. *)
(* TODO: logging let login_hdr, login_ev = Log.hdr name, `Login addr in *)
(* TODO: update policies! *)
Vmm_asn.wire_command_of_cert asn_version leaf >>| fun wire ->
(name, wire)

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@ -133,8 +133,8 @@ let add_pid t vmid pid nics =
let rec go cnt acc id =
if id > 0 && cnt > 0 then
match wrap sysctl_ifdata id with
| Some ifd when List.mem ifd.name nics ->
go (pred cnt) ((id, ifd.name) :: acc) (pred id)
| Some ifd when List.mem ifd.Vmm_core.Stats.name nics ->
go (pred cnt) ((id, ifd.Vmm_core.Stats.name) :: acc) (pred id)
| _ -> go cnt acc (pred id)
else
List.rev acc