Vladislav Yaroshchuk | 81ad296 | 2022-03-17 20:28:34 +0300 | [diff] [blame] | 1 | /* |
| 2 | * vmnet-bridged.m |
| 3 | * |
| 4 | * Copyright(c) 2022 Vladislav Yaroshchuk <vladislav.yaroshchuk@jetbrains.com> |
| 5 | * |
| 6 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| 7 | * See the COPYING file in the top-level directory. |
| 8 | * |
| 9 | */ |
| 10 | |
| 11 | #include "qemu/osdep.h" |
| 12 | #include "qapi/qapi-types-net.h" |
Vladislav Yaroshchuk | 81ad296 | 2022-03-17 20:28:34 +0300 | [diff] [blame] | 13 | #include "qapi/error.h" |
Vladislav Yaroshchuk | 2c313ae | 2022-03-17 20:28:37 +0300 | [diff] [blame] | 14 | #include "clients.h" |
| 15 | #include "vmnet_int.h" |
Vladislav Yaroshchuk | 81ad296 | 2022-03-17 20:28:34 +0300 | [diff] [blame] | 16 | |
| 17 | #include <vmnet/vmnet.h> |
| 18 | |
Vladislav Yaroshchuk | 2c313ae | 2022-03-17 20:28:37 +0300 | [diff] [blame] | 19 | |
| 20 | static bool validate_ifname(const char *ifname) |
| 21 | { |
| 22 | xpc_object_t shared_if_list = vmnet_copy_shared_interface_list(); |
| 23 | bool match = false; |
| 24 | if (!xpc_array_get_count(shared_if_list)) { |
| 25 | goto done; |
| 26 | } |
| 27 | |
| 28 | match = !xpc_array_apply( |
| 29 | shared_if_list, |
| 30 | ^bool(size_t index, xpc_object_t value) { |
| 31 | return strcmp(xpc_string_get_string_ptr(value), ifname) != 0; |
| 32 | }); |
| 33 | |
| 34 | done: |
| 35 | xpc_release(shared_if_list); |
| 36 | return match; |
| 37 | } |
| 38 | |
| 39 | |
Philippe Mathieu-Daudé | f975033 | 2023-04-23 18:55:28 +0200 | [diff] [blame] | 40 | static char* get_valid_ifnames(void) |
Vladislav Yaroshchuk | 2c313ae | 2022-03-17 20:28:37 +0300 | [diff] [blame] | 41 | { |
| 42 | xpc_object_t shared_if_list = vmnet_copy_shared_interface_list(); |
| 43 | __block char *if_list = NULL; |
| 44 | __block char *if_list_prev = NULL; |
| 45 | |
| 46 | if (!xpc_array_get_count(shared_if_list)) { |
| 47 | goto done; |
| 48 | } |
| 49 | |
| 50 | xpc_array_apply( |
| 51 | shared_if_list, |
| 52 | ^bool(size_t index, xpc_object_t value) { |
| 53 | /* build list of strings like "en0 en1 en2 " */ |
| 54 | if_list = g_strconcat(xpc_string_get_string_ptr(value), |
| 55 | " ", |
| 56 | if_list_prev, |
| 57 | NULL); |
| 58 | g_free(if_list_prev); |
| 59 | if_list_prev = if_list; |
| 60 | return true; |
| 61 | }); |
| 62 | |
| 63 | done: |
| 64 | xpc_release(shared_if_list); |
| 65 | return if_list; |
| 66 | } |
| 67 | |
| 68 | |
| 69 | static bool validate_options(const Netdev *netdev, Error **errp) |
| 70 | { |
| 71 | const NetdevVmnetBridgedOptions *options = &(netdev->u.vmnet_bridged); |
| 72 | char* if_list; |
| 73 | |
| 74 | if (!validate_ifname(options->ifname)) { |
| 75 | if_list = get_valid_ifnames(); |
| 76 | if (if_list) { |
| 77 | error_setg(errp, |
| 78 | "unsupported ifname '%s', expected one of [ %s]", |
| 79 | options->ifname, |
| 80 | if_list); |
| 81 | g_free(if_list); |
| 82 | } else { |
| 83 | error_setg(errp, |
| 84 | "unsupported ifname '%s', no supported " |
| 85 | "interfaces available", |
| 86 | options->ifname); |
| 87 | } |
| 88 | return false; |
| 89 | } |
| 90 | |
| 91 | #if !defined(MAC_OS_VERSION_11_0) || \ |
| 92 | MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_VERSION_11_0 |
| 93 | if (options->has_isolated) { |
| 94 | error_setg(errp, |
| 95 | "vmnet-bridged.isolated feature is " |
| 96 | "unavailable: outdated vmnet.framework API"); |
| 97 | return false; |
| 98 | } |
| 99 | #endif |
| 100 | return true; |
| 101 | } |
| 102 | |
| 103 | |
| 104 | static xpc_object_t build_if_desc(const Netdev *netdev) |
| 105 | { |
| 106 | const NetdevVmnetBridgedOptions *options = &(netdev->u.vmnet_bridged); |
| 107 | xpc_object_t if_desc = xpc_dictionary_create(NULL, NULL, 0); |
| 108 | |
| 109 | xpc_dictionary_set_uint64(if_desc, |
| 110 | vmnet_operation_mode_key, |
| 111 | VMNET_BRIDGED_MODE |
| 112 | ); |
| 113 | |
| 114 | xpc_dictionary_set_string(if_desc, |
| 115 | vmnet_shared_interface_name_key, |
| 116 | options->ifname); |
| 117 | |
| 118 | #if defined(MAC_OS_VERSION_11_0) && \ |
| 119 | MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_VERSION_11_0 |
| 120 | xpc_dictionary_set_bool(if_desc, |
| 121 | vmnet_enable_isolation_key, |
| 122 | options->isolated); |
| 123 | #endif |
| 124 | return if_desc; |
| 125 | } |
| 126 | |
| 127 | |
| 128 | static NetClientInfo net_vmnet_bridged_info = { |
| 129 | .type = NET_CLIENT_DRIVER_VMNET_BRIDGED, |
| 130 | .size = sizeof(VmnetState), |
| 131 | .receive = vmnet_receive_common, |
| 132 | .cleanup = vmnet_cleanup_common, |
| 133 | }; |
| 134 | |
| 135 | |
Vladislav Yaroshchuk | 81ad296 | 2022-03-17 20:28:34 +0300 | [diff] [blame] | 136 | int net_init_vmnet_bridged(const Netdev *netdev, const char *name, |
| 137 | NetClientState *peer, Error **errp) |
| 138 | { |
Vladislav Yaroshchuk | 2c313ae | 2022-03-17 20:28:37 +0300 | [diff] [blame] | 139 | NetClientState *nc = qemu_new_net_client(&net_vmnet_bridged_info, |
| 140 | peer, "vmnet-bridged", name); |
| 141 | xpc_object_t if_desc; |
| 142 | int result = -1; |
| 143 | |
| 144 | if (!validate_options(netdev, errp)) { |
| 145 | return result; |
| 146 | } |
| 147 | |
| 148 | if_desc = build_if_desc(netdev); |
| 149 | result = vmnet_if_create(nc, if_desc, errp); |
| 150 | xpc_release(if_desc); |
| 151 | return result; |
Vladislav Yaroshchuk | 81ad296 | 2022-03-17 20:28:34 +0300 | [diff] [blame] | 152 | } |