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#include "SecurityContext.hpp"
#include "../Compositor.hpp"
#include <sys/socket.h>
static int onListenFdEvent(int fd, uint32_t mask, void* data) {
auto sc = (CSecurityContext*)data;
sc->onListen(mask);
return 0;
}
static int onCloseFdEvent(int fd, uint32_t mask, void* data) {
auto sc = (CSecurityContext*)data;
sc->onClose(mask);
return 0;
}
SP<CSecurityContextSandboxedClient> CSecurityContextSandboxedClient::create(int clientFD_) {
auto p = SP<CSecurityContextSandboxedClient>(new CSecurityContextSandboxedClient(clientFD_));
if (!p->client)
return nullptr;
return p;
}
static void onSecurityContextClientDestroy(wl_listener* l, void* d) {
SCSecurityContextSandboxedClientDestroyWrapper* wrap = wl_container_of(l, wrap, listener);
CSecurityContextSandboxedClient* client = wrap->parent;
client->onDestroy();
}
CSecurityContextSandboxedClient::CSecurityContextSandboxedClient(int clientFD_) : clientFD(clientFD_) {
client = wl_client_create(g_pCompositor->m_sWLDisplay, clientFD);
if (!client)
return;
wl_list_init(&destroyListener.listener.link);
destroyListener.listener.notify = ::onSecurityContextClientDestroy;
destroyListener.parent = this;
wl_client_add_destroy_late_listener(client, &destroyListener.listener);
}
CSecurityContextSandboxedClient::~CSecurityContextSandboxedClient() {
wl_list_remove(&destroyListener.listener.link);
wl_list_init(&destroyListener.listener.link);
close(clientFD);
}
void CSecurityContextSandboxedClient::onDestroy() {
std::erase_if(PROTO::securityContext->m_vSandboxedClients, [this](const auto& e) { return e.get() == this; });
}
CSecurityContext::CSecurityContext(SP<CWpSecurityContextV1> resource_, int listenFD_, int closeFD_) : listenFD(listenFD_), closeFD(closeFD_), resource(resource_) {
if (!good())
return;
resource->setDestroy([this](CWpSecurityContextV1* r) {
LOGM(LOG, "security_context at 0x{:x}: resource destroyed, keeping context until fd hangup", (uintptr_t)this);
resource = nullptr;
});
resource->setOnDestroy([this](CWpSecurityContextV1* r) {
LOGM(LOG, "security_context at 0x{:x}: resource destroyed, keeping context until fd hangup", (uintptr_t)this);
resource = nullptr;
});
LOGM(LOG, "New security_context at 0x{:x}", (uintptr_t)this);
resource->setSetSandboxEngine([this](CWpSecurityContextV1* r, const char* engine) {
if (!sandboxEngine.empty()) {
r->error(WP_SECURITY_CONTEXT_V1_ERROR_ALREADY_SET, "Sandbox engine already set");
return;
}
if (committed) {
r->error(WP_SECURITY_CONTEXT_V1_ERROR_ALREADY_USED, "Context already committed");
return;
}
sandboxEngine = engine ? engine : "(null)";
LOGM(LOG, "security_context at 0x{:x} sets engine to {}", (uintptr_t)this, sandboxEngine);
});
resource->setSetAppId([this](CWpSecurityContextV1* r, const char* appid) {
if (!appID.empty()) {
r->error(WP_SECURITY_CONTEXT_V1_ERROR_ALREADY_SET, "Sandbox appid already set");
return;
}
if (committed) {
r->error(WP_SECURITY_CONTEXT_V1_ERROR_ALREADY_USED, "Context already committed");
return;
}
appID = appid ? appid : "(null)";
LOGM(LOG, "security_context at 0x{:x} sets appid to {}", (uintptr_t)this, appID);
});
resource->setSetInstanceId([this](CWpSecurityContextV1* r, const char* instance) {
if (!instanceID.empty()) {
r->error(WP_SECURITY_CONTEXT_V1_ERROR_ALREADY_SET, "Sandbox instance already set");
return;
}
if (committed) {
r->error(WP_SECURITY_CONTEXT_V1_ERROR_ALREADY_USED, "Context already committed");
return;
}
instanceID = instance ? instance : "(null)";
LOGM(LOG, "security_context at 0x{:x} sets instance to {}", (uintptr_t)this, instanceID);
});
resource->setCommit([this](CWpSecurityContextV1* r) {
committed = true;
LOGM(LOG, "security_context at 0x{:x} commits", (uintptr_t)this);
listenSource = wl_event_loop_add_fd(g_pCompositor->m_sWLEventLoop, listenFD, WL_EVENT_READABLE, ::onListenFdEvent, this);
closeSource = wl_event_loop_add_fd(g_pCompositor->m_sWLEventLoop, closeFD, 0, ::onCloseFdEvent, this);
if (!listenSource || !closeSource) {
r->noMemory();
return;
}
});
}
CSecurityContext::~CSecurityContext() {
if (listenSource)
wl_event_source_remove(listenSource);
if (closeSource)
wl_event_source_remove(closeSource);
}
bool CSecurityContext::good() {
return resource->resource();
}
void CSecurityContext::onListen(uint32_t mask) {
if (mask & (WL_EVENT_HANGUP | WL_EVENT_ERROR)) {
LOGM(ERR, "security_context at 0x{:x} got an error in listen", (uintptr_t)this);
PROTO::securityContext->destroyContext(this);
return;
}
if (!(mask & WL_EVENT_READABLE))
return;
int clientFD = accept(listenFD, nullptr, nullptr);
if (clientFD < 0) {
LOGM(ERR, "security_context at 0x{:x} couldn't accept", (uintptr_t)this);
return;
}
auto newClient = CSecurityContextSandboxedClient::create(clientFD);
if (!newClient) {
LOGM(ERR, "security_context at 0x{:x} couldn't create a client", (uintptr_t)this);
close(clientFD);
return;
}
PROTO::securityContext->m_vSandboxedClients.emplace_back(newClient);
LOGM(LOG, "security_context at 0x{:x} got a new wl_client 0x{:x}", (uintptr_t)this, (uintptr_t)newClient->client);
}
void CSecurityContext::onClose(uint32_t mask) {
if (!(mask & (WL_EVENT_ERROR | WL_EVENT_HANGUP)))
return;
PROTO::securityContext->destroyContext(this);
}
CSecurityContextManagerResource::CSecurityContextManagerResource(SP<CWpSecurityContextManagerV1> resource_) : resource(resource_) {
if (!good())
return;
resource->setDestroy([this](CWpSecurityContextManagerV1* r) { PROTO::securityContext->destroyResource(this); });
resource->setOnDestroy([this](CWpSecurityContextManagerV1* r) { PROTO::securityContext->destroyResource(this); });
resource->setCreateListener([](CWpSecurityContextManagerV1* r, uint32_t id, int32_t lfd, int32_t cfd) {
const auto RESOURCE =
PROTO::securityContext->m_vContexts.emplace_back(makeShared<CSecurityContext>(makeShared<CWpSecurityContextV1>(r->client(), r->version(), id), lfd, cfd));
if (!RESOURCE->good()) {
r->noMemory();
PROTO::securityContext->m_vContexts.pop_back();
return;
}
});
}
bool CSecurityContextManagerResource::good() {
return resource->resource();
}
CSecurityContextProtocol::CSecurityContextProtocol(const wl_interface* iface, const int& ver, const std::string& name) : IWaylandProtocol(iface, ver, name) {
;
}
void CSecurityContextProtocol::bindManager(wl_client* client, void* data, uint32_t ver, uint32_t id) {
const auto RESOURCE = m_vManagers.emplace_back(makeShared<CSecurityContextManagerResource>(makeShared<CWpSecurityContextManagerV1>(client, ver, id)));
if (!RESOURCE->good()) {
wl_client_post_no_memory(client);
m_vManagers.pop_back();
return;
}
}
void CSecurityContextProtocol::destroyResource(CSecurityContextManagerResource* res) {
std::erase_if(m_vManagers, [&](const auto& other) { return other.get() == res; });
}
void CSecurityContextProtocol::destroyContext(CSecurityContext* context) {
std::erase_if(m_vContexts, [&](const auto& other) { return other.get() == context; });
}
bool CSecurityContextProtocol::isClientSandboxed(const wl_client* client) {
return std::find_if(m_vSandboxedClients.begin(), m_vSandboxedClients.end(), [client](const auto& e) { return e->client == client; }) != m_vSandboxedClients.end();
}
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