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author | Thomas Egerer <thomas.egerer@secunet.com> | 2015-10-06 11:02:45 +0200 |
---|---|---|
committer | Tobias Brunner <tobias@strongswan.org> | 2015-11-10 15:40:14 +0100 |
commit | db61c37690b5bd1c9d157ad7a91d3a6a0b8684bc (patch) | |
tree | 39ea8590eff8751c55e050f1920211f27c851cd7 | |
parent | e8f2c13f9a80c53f4fae15119c5d2cdafb08726b (diff) | |
download | strongswan-db61c37690b5bd1c9d157ad7a91d3a6a0b8684bc.tar.bz2 strongswan-db61c37690b5bd1c9d157ad7a91d3a6a0b8684bc.tar.xz |
kernel-interface: Return bool for kernel interface registration
If the (un)registering of a kernel interface (net or ipsec) fails, the
plugin loader will never know, since the appropriate functions always
returns TRUE. By making the (un)register functions return a boolean
value, the loader can detect a failure during initializing the kernel
interface and abort charon startup if desired.
-rw-r--r-- | src/libhydra/kernel/kernel_interface.c | 16 | ||||
-rw-r--r-- | src/libhydra/kernel/kernel_interface.h | 30 | ||||
-rw-r--r-- | src/libhydra/kernel/kernel_ipsec.c | 7 | ||||
-rw-r--r-- | src/libhydra/kernel/kernel_net.c | 7 |
4 files changed, 40 insertions, 20 deletions
diff --git a/src/libhydra/kernel/kernel_interface.c b/src/libhydra/kernel/kernel_interface.c index ce31bd410..e4435450f 100644 --- a/src/libhydra/kernel/kernel_interface.c +++ b/src/libhydra/kernel/kernel_interface.c @@ -738,44 +738,52 @@ METHOD(kernel_interface_t, get_address_by_ts, status_t, } -METHOD(kernel_interface_t, add_ipsec_interface, void, +METHOD(kernel_interface_t, add_ipsec_interface, bool, private_kernel_interface_t *this, kernel_ipsec_constructor_t constructor) { if (!this->ipsec) { this->ipsec_constructor = constructor; this->ipsec = constructor(); + return this->ipsec != NULL; } + return FALSE; } -METHOD(kernel_interface_t, remove_ipsec_interface, void, +METHOD(kernel_interface_t, remove_ipsec_interface, bool, private_kernel_interface_t *this, kernel_ipsec_constructor_t constructor) { if (constructor == this->ipsec_constructor && this->ipsec) { this->ipsec->destroy(this->ipsec); this->ipsec = NULL; + return TRUE; } + return FALSE; } -METHOD(kernel_interface_t, add_net_interface, void, +METHOD(kernel_interface_t, add_net_interface, bool, private_kernel_interface_t *this, kernel_net_constructor_t constructor) { if (!this->net) { this->net_constructor = constructor; this->net = constructor(); + return this->net != NULL; } + return FALSE; } -METHOD(kernel_interface_t, remove_net_interface, void, +METHOD(kernel_interface_t, remove_net_interface, bool, private_kernel_interface_t *this, kernel_net_constructor_t constructor) { if (constructor == this->net_constructor && this->net) { this->net->destroy(this->net); this->net = NULL; + return TRUE; } + return FALSE; } METHOD(kernel_interface_t, add_listener, void, diff --git a/src/libhydra/kernel/kernel_interface.h b/src/libhydra/kernel/kernel_interface.h index 96ce9e26d..58113e587 100644 --- a/src/libhydra/kernel/kernel_interface.h +++ b/src/libhydra/kernel/kernel_interface.h @@ -502,39 +502,49 @@ struct kernel_interface_t { /** * Register an ipsec kernel interface constructor on the manager. * - * @param create constructor to register + * @param create constructor to register + * @return TRUE if the ipsec kernel interface was registered + * successfully, FALSE if an interface was already + * registered or the registration failed */ - void (*add_ipsec_interface)(kernel_interface_t *this, + bool (*add_ipsec_interface)(kernel_interface_t *this, kernel_ipsec_constructor_t create); /** * Unregister an ipsec kernel interface constructor. * - * @param create constructor to unregister + * @param create constructor to unregister + * @return TRUE if the ipsec kernel interface was unregistered + * successfully, FALSE otherwise */ - void (*remove_ipsec_interface)(kernel_interface_t *this, + bool (*remove_ipsec_interface)(kernel_interface_t *this, kernel_ipsec_constructor_t create); /** * Register a network kernel interface constructor on the manager. * - * @param create constructor to register + * @param create constructor to register + * @return TRUE if the kernel net interface was registered + * successfully, FALSE if an interface was already + * registered or the registration failed */ - void (*add_net_interface)(kernel_interface_t *this, + bool (*add_net_interface)(kernel_interface_t *this, kernel_net_constructor_t create); /** * Unregister a network kernel interface constructor. * - * @param create constructor to unregister + * @param create constructor to unregister + * @return TRUE if the kernel net interface was unregistered + * successfully, FALSE otherwise */ - void (*remove_net_interface)(kernel_interface_t *this, + bool (*remove_net_interface)(kernel_interface_t *this, kernel_net_constructor_t create); /** * Add a listener to the kernel interface. * - * @param listener listener to add + * @param listener listener to add */ void (*add_listener)(kernel_interface_t *this, kernel_listener_t *listener); @@ -542,7 +552,7 @@ struct kernel_interface_t { /** * Remove a listener from the kernel interface. * - * @param listener listener to remove + * @param listener listener to remove */ void (*remove_listener)(kernel_interface_t *this, kernel_listener_t *listener); diff --git a/src/libhydra/kernel/kernel_ipsec.c b/src/libhydra/kernel/kernel_ipsec.c index 1a32ab4e7..697b1b33d 100644 --- a/src/libhydra/kernel/kernel_ipsec.c +++ b/src/libhydra/kernel/kernel_ipsec.c @@ -25,13 +25,14 @@ bool kernel_ipsec_register(plugin_t *plugin, plugin_feature_t *feature, { if (reg) { - hydra->kernel_interface->add_ipsec_interface(hydra->kernel_interface, + return hydra->kernel_interface->add_ipsec_interface( + hydra->kernel_interface, (kernel_ipsec_constructor_t)data); } else { - hydra->kernel_interface->remove_ipsec_interface(hydra->kernel_interface, + return hydra->kernel_interface->remove_ipsec_interface( + hydra->kernel_interface, (kernel_ipsec_constructor_t)data); } - return TRUE; } diff --git a/src/libhydra/kernel/kernel_net.c b/src/libhydra/kernel/kernel_net.c index 0841ed803..07d8b2999 100644 --- a/src/libhydra/kernel/kernel_net.c +++ b/src/libhydra/kernel/kernel_net.c @@ -25,13 +25,14 @@ bool kernel_net_register(plugin_t *plugin, plugin_feature_t *feature, { if (reg) { - hydra->kernel_interface->add_net_interface(hydra->kernel_interface, + return hydra->kernel_interface->add_net_interface( + hydra->kernel_interface, (kernel_net_constructor_t)data); } else { - hydra->kernel_interface->remove_net_interface(hydra->kernel_interface, + return hydra->kernel_interface->remove_net_interface( + hydra->kernel_interface, (kernel_net_constructor_t)data); } - return TRUE; } |