genode_c_api: errors on socket/nic_client init

Prevent uncaught exceptiosn in (NIC-client) initialization but report
as errors from genode_socket_init() / genode_nic_client_create().
This commit is contained in:
Christian Helmuth 2025-04-01 12:35:00 +02:00 committed by Norman Feske
parent 14cfc765c6
commit 1f181f6ce3
8 changed files with 31 additions and 12 deletions

View File

@ -88,7 +88,7 @@ struct Main
};
void genode_socket_init(struct genode_env *_env,
bool genode_socket_init(struct genode_env *_env,
struct genode_socket_io_progress *io_progress,
char const *label)
{
@ -108,4 +108,6 @@ void genode_socket_init(struct genode_env *_env,
/* wait to finish initialization before returning to callee */
lx_emul_execute_kernel_until(lx_user_startup_complete, nullptr);
return lx_nic_client_initialized();
}

View File

@ -188,6 +188,10 @@ static int rx_task_function(void *arg)
}
static bool initialized;
bool lx_nic_client_initialized() { return initialized; }
static int __init virtio_net_driver_init(void)
{
struct net_device *dev;
@ -232,6 +236,7 @@ static int __init virtio_net_driver_init(void)
nic_rx_task_struct_ptr = find_task_by_pid_ns(pid, NULL);
initialized = true;
return 0;
out_nic:

View File

@ -23,6 +23,7 @@ extern "C" {
struct task_struct *lx_nic_client_rx_task(void);
bool lx_nic_client_link_state(void);
bool lx_nic_client_update_link_state(void);
bool lx_nic_client_initialized(void);
/* socket.cc */
void socket_schedule_peer(void);

View File

@ -215,7 +215,10 @@ struct genode_netif_handle *lwip_genode_netif_init(char const *label)
return NULL;
}
handle->nic_handle = genode_nic_client_create(label);
handle->nic_handle = genode_nic_client_create(label);
if (handle->nic_handle == NULL)
return NULL;
handle->netif = net;
handle->address_valid = false;
handle->address_configured = false;

View File

@ -38,6 +38,8 @@ struct Statics
genode_socket_io_progress *io_progress;
Genode::Heap *heap;
Genode::Env *env;
bool initialized() const { return netif_ptr && io_progress && heap && env; }
};
@ -343,7 +345,7 @@ void genode_socket_wait_for_progress()
}
void genode_socket_init(struct genode_env *_env,
bool genode_socket_init(struct genode_env *_env,
struct genode_socket_io_progress *io_progress,
char const *label)
{
@ -353,6 +355,8 @@ void genode_socket_init(struct genode_env *_env,
statics().io_progress = io_progress;
static Socket::Main main { env, label };
return statics().initialized();
}

View File

@ -155,7 +155,7 @@ struct genode_socket_io_progress
};
void genode_socket_init(struct genode_env *env,
bool genode_socket_init(struct genode_env *env,
struct genode_socket_io_progress *,
char const *label);

View File

@ -249,11 +249,13 @@ struct genode_nic_client *genode_nic_client_create(char const *label)
return nullptr;
}
return new (*statics().alloc_ptr)
Registered<genode_nic_client>(statics().nic_clients, *statics().env_ptr,
*statics().alloc_ptr,
statics().sigh, statics().link_sigh,
Session_label(label));
try {
return new (*statics().alloc_ptr)
Registered<genode_nic_client>(statics().nic_clients, *statics().env_ptr,
*statics().alloc_ptr,
statics().sigh, statics().link_sigh,
Session_label(label));
} catch (...) { return nullptr; }
}

View File

@ -1998,10 +1998,12 @@ struct Ip_factory : Vfs::File_system_factory
using Label = Genode::String<Genode::Session_label::capacity()>;
genode_socket_init(genode_env_ptr(env.env()), &io_progress,
config.attribute_value("label", Label("")).string());
if (genode_socket_init(genode_env_ptr(env.env()), &io_progress,
config.attribute_value("label", Label("")).string()))
return new (env.alloc()) Vfs::Ip_file_system(env, config);
return new (env.alloc()) Vfs::Ip_file_system(env, config);
struct Socket_init_failed { };
throw Socket_init_failed();
}
};