pkgs/ch-proxy/proxy.c

@@ -7,8 +7,6 @@
 #include <sys/socket.h>
 #include <sys/un.h>
 
-#include <linux/vm_sockets.h>
-
 struct msghdr mk_msghdr();
 int ch_connect(const char*, const char*);
 ssize_t send_fd(int, int);
@@ -20,8 +18,7 @@ void print_usage() {
             "Usage:\n"
             "\tch-proxy uvm/$USER_VM_NAME [PORT]\n"
             "\tch-proxy uuvm/$VM_NAME [PORT]\n"
-            "\tch-proxy vsock-mux%$PATH [PORT]\n"
+            "\tch-proxy vsock-mux%$PATH [PORT]\n");
-            "\tch-proxy vsock/cid[:port]\n");
 }
 
 char *extract_vsock_mux(const char *host_string) {
@@ -70,50 +67,6 @@ char *extract_muvm(const char *host_string) {
     return result;
 }
 
-int extract_cid(const char *host, int *cid, int *port) {
-    if (errno != 0) {
-        perror("extract_cid(...): errno unclean");
-        exit(EXIT_FAILURE);
-    }
-
-    const char PREFIX[] = "vsock/";
-    const ssize_t PREFIX_LEN = sizeof(PREFIX) - 1;
-
-    if (strncmp(host, PREFIX, PREFIX_LEN) != 0) {
-        return 1;
-    }
-
-    char *in = NULL;
-    const char *end = host + strlen(host);
-    const char *sCid = host + PREFIX_LEN;
-
-    long x;
-    x = strtol(sCid, &in, 10);
-    if (errno != 0) {
-        perror("strtol(cid, ...)");
-        exit(EXIT_FAILURE);
-    }
-    *cid = (int) x;
-
-    if (in == end) {
-        *port = 22;
-        return 0;
-    } else if (in[0] != ':') {
-        perror("extract_cid(...): expected a string of the form cid[:port]");
-        perror(host);
-        exit(EXIT_FAILURE);
-    }
-
-    const char *sPort = in + 1;
-    x = strtol(sPort, &in, 10);
-    if (errno != 0) {
-        perror("strtol(port, ...)");
-        exit(EXIT_FAILURE);
-    }
-    *port = (int) x;
-    return 0;
-}
-
 int main(int argc, char** argv) {
     if (!(2 <= argc && argc <= 3)) {
         fprintf(stderr, "%s: Wrong # of arguments: %d\n", argv[0], argc);
@@ -126,47 +79,21 @@ int main(int argc, char** argv) {
     const char *ssh_host = argv[1];
     const char *port_string = argc == 3 ? argv[2] : PORT_DEFAULT;
 
-    int cid = -1, port = -1;
+    char *path_un;
-    char *path_un = NULL;
     if ((path_un = extract_uvm(ssh_host)) != NULL) {
     } else if ((path_un = extract_muvm(ssh_host)) != NULL) {
     } else if ((path_un = extract_vsock_mux(ssh_host)) != NULL) {
-    } else if (extract_cid(ssh_host, &cid, &port) == 0) {
     } else {
-        fprintf(stderr, "ch-proxy/main: unexpected host string format: %s\n", ssh_host);
+        fprintf(stderr, "ch-proxy/main: unexpected host stirng format: %s\n", ssh_host);
         print_usage();
         return EXIT_FAILURE;
     }
 
-    int s = -1;
+    const int s = ch_connect(path_un, port_string);
-
+    if (s == -1) {
-    if (path_un != NULL)  {
+        perror("ssh-vsock-proxy/main/ch_connect");
-        s = ch_connect(path_un, port_string);
+        return EXIT_FAILURE;
-        if (s == -1) {
+    };
-            perror("ssh-vsock-proxy/main/ch_connect");
-            return EXIT_FAILURE;
-        };
-    } else if (cid != -1 && port != -1) {
-        struct sockaddr_vm sa = {
-            .svm_family = AF_VSOCK,
-            .svm_reserved1 = 0,
-            .svm_port = port,
-            .svm_cid = cid,
-        };
-        memset(sa.svm_zero, 0, sizeof(sa.svm_zero));
-        s = socket(AF_VSOCK, SOCK_STREAM, 0);
-        if (s == -1) {
-            perror("socket(AF_VSOCK, ...)");
-            exit(EXIT_FAILURE);
-        }
-        if (connect(s, (struct sockaddr*)&sa, sizeof(sa)) != 0) {
-            perror("connect(socket(AF_VSOCK, ...), ...)");
-            exit(EXIT_FAILURE);
-        }
-    } else {
-        perror("Couldn't parse neither uuvm/ strings nor vsock/cid[:port]");
-        exit(EXIT_FAILURE);
-    }
 
     if (send_fd(1, s) == -1) {
         perror("ssh-vsock-proxy/main/send_fd");

pkgs/desktopAdapters.nix

@@ -2,7 +2,6 @@
   lib,
   newScope,
   makeDesktopItem,
-  writeShellScript,
   writeShellScriptBin,
 }:
 
@@ -19,34 +18,29 @@ lib.makeScope newScope (self: {
   mkRunInVM = vmName: lib.getExe (self.mkRunInVMPkg vmName);
   mkRunInVMPkg =
     vmName:
-    lib.warn "Use `\${runInVM} foobar` instead of `\${mkRunInVMPkg foobar}`" (
+    writeShellScriptBin "run-in-${vmName}" ''
-      writeShellScriptBin "run-in-${vmName}" "${lib.getExe self.runInVM} ${vmName} $@"
+      localArgs=(
-    );
+      ${lib.optionalString self.useSessionUnits "--user"}
-  runInVM = writeShellScriptBin "run-in" ''
+      --property=Requires=${self.vmUnitPrefix}${vmName}.service
-    vmName=$1
+      --property=After=${self.vmUnitPrefix}${vmName}.service
-    shift
+      --property=SyslogIdentifier="$1 (${vmName})"
-    localArgs=(
+      )
-    ${lib.optionalString self.useSessionUnits "--user"}
+      remoteArgs=(
-    --property=Requires="${self.vmUnitPrefix}$vmName".service
+      systemd-run
-    --property=After="${self.vmUnitPrefix}$vmName".service
+      --user
-    --property=SyslogIdentifier="$1 ($vmName)"
+      --property=StandardError="journal+console"
-    )
+      --property=StandardOutput="journal+console"
-    remoteArgs=(
+      --property=OOMScoreAdjust=${toString self.oomScoreAdjust}
-    systemd-run
+      ${lib.optionalString (self.waylandProxyUnit != null) ''
-    --user
+        --property=Requires=${self.waylandProxyUnit}
-    --property=StandardError="journal+console"
+        --property=After=${self.waylandProxyUnit}
-    --property=StandardOutput="journal+console"
+      ''}
-    --property=OOMScoreAdjust=${toString self.oomScoreAdjust}
+      )
-    ${lib.optionalString (self.waylandProxyUnit != null) ''
+      systemd-run \
-      --property=Requires=${self.waylandProxyUnit}
+        "''${localArgs[@]}" \
-      --property=After=${self.waylandProxyUnit}
+        ssh ${self.vmUser}@${self.vmSshPrefix}${vmName} \
-    ''}
+            "''${remoteArgs[@]}" $@
-    )
+    '';
-    systemd-run \
-      "''${localArgs[@]}" \
-      ssh "${self.vmUser}@${self.vmSshPrefix}$vmName" \
-          "''${remoteArgs[@]}" $@
-  '';
 
   # Actual .desktop item adapters
   toVM =

pkgs/request-usb/package.nix

@@ -1,63 +0,0 @@
-{ writeShellScriptBin }:
-
-writeShellScriptBin "request-usb" ''
-  set -euo pipefail
-
-  parseArgs() {
-    N_CONSTRAINTS=0
-    while [[ -n "''${1:-}" ]]; do
-        local x=
-        case "$1" in
-          "--manufacturer" )
-              N_CONSTRAINTS=$(( $N_CONSTRAINTS + 1 ))
-              MANUFACTURER="$2"
-              shift 2
-              ;;
-          "--manufacturer="* )
-              N_CONSTRAINTS=$(( $N_CONSTRAINTS + 1 ))
-              MANUFACTURER=''${1#--manufacturer=}
-              shift 1
-              ;;
-          "--" )
-              break
-              ;;
-          *)
-              printUsage
-              ;;
-        esac
-    done
-  }
-  printUsage() {
-      echo "$(caller)" >&2
-      echo "Usage: request-usb [--manufacturer=MANUFACTURER]" >&2
-      exit 1
-  }
-
-  findFirst() {
-    local d=
-
-    [[ ''${N_CONSTRAINTS:-0} != 0 ]] || printUsage
-    for d in /sys/bus/usb/devices/* ; do
-        [[ -e "$d/manufacturer" ]] || continue
-        [[ -e "$d/uevent" ]] || continue
-
-        read -r x < "$d/manufacturer"
-        if ! [[ -z "''${MANUFACTURER:-}" || "$MANUFACTURER" =  "$x" ]] ; then
-            continue
-        fi
-
-        # NOTE: Other predicates here
-        # ...
-
-        echo -n "$d"
-        return
-    done
-    return 1
-  }
-
-  parseArgs $@
-  d=$(findFirst)
-  export $( cat "$d/uevent" )
-  sudo chown "$USER" /dev/bus/usb/"$BUSNUM"/"$DEVNUM"
-  echo -n /dev/bus/usb/"$BUSNUM"/"$DEVNUM"
-''

profiles/vmapp-demo.nix

@@ -8,7 +8,6 @@
 }:
 
 let
-  inherit (config._module.args) inputs;
   cfg = config.vmapps;
   desktopItems' = pkgs.callPackage ../pkgs/desktopAdapters.nix { };
   desktopItems = desktopItems'.overrideScope (
@@ -29,8 +28,8 @@ let
         modules = extraModules ++ [
           {
             microvm.hypervisor = "cloud-hypervisor";
-            microvm.hotpluggedMem = lib.mkDefault 128;
+            microvm.hotpluggedMem = 128;
-            microvm.hotplugMem = lib.mkDefault 512;
+            microvm.hotplugMem = 512;
             microvm.shares = [
               {
                 source = "send";
@@ -51,10 +50,10 @@ let
           ./uvms-guest.nix
           ./vsock-connect-guest.nix
           (modulesPath + "/profiles/minimal.nix")
-          (inputs."microvm.nix" + "/nixos-modules/microvm")
+          (config._module.args.inputs."microvm.nix" + "/nixos-modules/microvm")
         ];
         specialArgs = {
-          inherit inputs;
+          inherit (config._module.args) inputs;
         };
       };
       runner = evaluated.config.microvm.declaredRunner;
@@ -240,7 +239,7 @@ in
         [
           {
             environment.systemPackages = [
-              (desktopItems.runInVM)
+              (desktopItems.mkRunInVMPkg "browser")
               (pkgs.makeDesktopItem (
                 desktopItems.toBrowser (
                   (desktopItems.toVM "browser" {