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Pass full struct to peer certificate callbacks

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This makes it easier to add new information to the callbacks without
having to modify each callback function type in EAPOL and EAP code every
time.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
Jouni Malinen 2019-06-11 04:20:18 +03:00
parent 82b9de98c3
commit bc0634da4a
9 changed files with 64 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
src/crypto/tls.h
View File

@ -48,6 +48,17 @@ enum tls_fail_reason {
#define TLS_MAX_ALT_SUBJECT 10
struct tls_cert_data {
int depth;
const char *subject;
const struct wpabuf *cert;
const u8 *hash;
size_t hash_len;
const char *altsubject[TLS_MAX_ALT_SUBJECT];
int num_altsubject;
const char *serial_num;
};
union tls_event_data {
struct {
int depth;
@ -57,16 +68,7 @@ union tls_event_data {
const struct wpabuf *cert;
} cert_fail;
struct {
int depth;
const char *subject;
const struct wpabuf *cert;
const u8 *hash;
size_t hash_len;
const char *altsubject[TLS_MAX_ALT_SUBJECT];
int num_altsubject;
const char *serial_num;
} peer_cert;
struct tls_cert_data peer_cert;
struct {
int is_local;

8
src/eap_peer/eap.c
View File

@ -2097,12 +2097,8 @@ static void eap_peer_sm_tls_event(void *ctx, enum tls_event ev,
}
}
sm->eapol_cb->notify_cert(sm->eapol_ctx,
data->peer_cert.depth,
data->peer_cert.subject,
data->peer_cert.altsubject,
data->peer_cert.num_altsubject,
hash_hex, data->peer_cert.cert);
sm->eapol_cb->notify_cert(sm->eapol_ctx, &data->peer_cert,
hash_hex);
break;
case TLS_ALERT:
if (data->alert.is_local)

12
src/eap_peer/eap.h
View File

@ -16,6 +16,7 @@
struct eap_sm;
struct wpa_config_blob;
struct wpabuf;
struct tls_cert_data;
struct eap_method_type {
int vendor;
@ -226,16 +227,11 @@ struct eapol_callbacks {
/**
* notify_cert - Notification of a peer certificate
* @ctx: eapol_ctx from eap_peer_sm_init() call
* @depth: Depth in certificate chain (0 = server)
* @subject: Subject of the peer certificate
* @altsubject: Select fields from AltSubject of the peer certificate
* @num_altsubject: Number of altsubject values
* @cert: Certificate information
* @cert_hash: SHA-256 hash of the certificate
* @cert: Peer certificate
*/
void (*notify_cert)(void *ctx, int depth, const char *subject,
const char *altsubject[], int num_altsubject,
const char *cert_hash, const struct wpabuf *cert);
void (*notify_cert)(void *ctx, struct tls_cert_data *cert,
const char *cert_hash);
/**
* notify_status - Notification of the current EAP state

9
src/eapol_supp/eapol_supp_sm.c
View File

@ -1998,15 +1998,12 @@ static void eapol_sm_eap_param_needed(void *ctx, enum wpa_ctrl_req_type field,
#define eapol_sm_eap_param_needed NULL
#endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
static void eapol_sm_notify_cert(void *ctx, int depth, const char *subject,
const char *altsubject[],
int num_altsubject, const char *cert_hash,
const struct wpabuf *cert)
static void eapol_sm_notify_cert(void *ctx, struct tls_cert_data *cert,
const char *cert_hash)
{
struct eapol_sm *sm = ctx;
if (sm->ctx->cert_cb)
sm->ctx->cert_cb(sm->ctx->ctx, depth, subject, altsubject,
num_altsubject, cert_hash, cert);
sm->ctx->cert_cb(sm->ctx->ctx, cert, cert_hash);
}

13
src/eapol_supp/eapol_supp_sm.h
View File

@ -11,6 +11,8 @@
#include "common/defs.h"
struct tls_cert_data;
typedef enum { Unauthorized, Authorized } PortStatus;
typedef enum { Auto, ForceUnauthorized, ForceAuthorized } PortControl;
@ -246,16 +248,11 @@ struct eapol_ctx {
/**
* cert_cb - Notification of a peer certificate
* @ctx: Callback context (ctx)
* @depth: Depth in certificate chain (0 = server)
* @subject: Subject of the peer certificate
* @altsubject: Select fields from AltSubject of the peer certificate
* @num_altsubject: Number of altsubject values
* @cert: Certificate information
* @cert_hash: SHA-256 hash of the certificate
* @cert: Peer certificate
*/
void (*cert_cb)(void *ctx, int depth, const char *subject,
const char *altsubject[], int num_altsubject,
const char *cert_hash, const struct wpabuf *cert);
void (*cert_cb)(void *ctx, struct tls_cert_data *cert,
const char *cert_hash);
/**
* cert_in_cb - Include server certificates in callback

28
wpa_supplicant/eapol_test.c
View File

@ -15,6 +15,7 @@
#include "common.h"
#include "utils/ext_password.h"
#include "common/version.h"
#include "crypto/tls.h"
#include "config.h"
#include "eapol_supp/eapol_supp_sm.h"
#include "eap_peer/eap.h"
@ -497,44 +498,43 @@ static void eapol_test_eap_param_needed(void *ctx, enum wpa_ctrl_req_type field,
#endif /* CONFIG_CTRL_IFACE || !CONFIG_NO_STDOUT_DEBUG */
static void eapol_test_cert_cb(void *ctx, int depth, const char *subject,
const char *altsubject[], int num_altsubject,
const char *cert_hash,
const struct wpabuf *cert)
static void eapol_test_cert_cb(void *ctx, struct tls_cert_data *cert,
const char *cert_hash)
{
struct eapol_test_data *e = ctx;
wpa_msg(e->wpa_s, MSG_INFO, WPA_EVENT_EAP_PEER_CERT
"depth=%d subject='%s'%s%s",
depth, subject,
cert->depth, cert->subject,
cert_hash ? " hash=" : "",
cert_hash ? cert_hash : "");
if (cert) {
if (cert->cert) {
char *cert_hex;
size_t len = wpabuf_len(cert) * 2 + 1;
size_t len = wpabuf_len(cert->cert) * 2 + 1;
cert_hex = os_malloc(len);
if (cert_hex) {
wpa_snprintf_hex(cert_hex, len, wpabuf_head(cert),
wpabuf_len(cert));
wpa_snprintf_hex(cert_hex, len, wpabuf_head(cert->cert),
wpabuf_len(cert->cert));
wpa_msg_ctrl(e->wpa_s, MSG_INFO,
WPA_EVENT_EAP_PEER_CERT
"depth=%d subject='%s' cert=%s",
depth, subject, cert_hex);
cert->depth, cert->subject, cert_hex);
os_free(cert_hex);
}
if (e->server_cert_file)
eapol_test_write_cert(e->server_cert_file,
subject, cert);
cert->subject, cert->cert);
}
if (altsubject) {
if (cert->altsubject) {
int i;
for (i = 0; i < num_altsubject; i++)
for (i = 0; i < cert->num_altsubject; i++)
wpa_msg(e->wpa_s, MSG_INFO, WPA_EVENT_EAP_PEER_ALT
"depth=%d %s", depth, altsubject[i]);
"depth=%d %s", cert->depth,
cert->altsubject[i]);
}
}

32
wpa_supplicant/notify.c
View File

@ -18,6 +18,7 @@
#include "dbus/dbus_new.h"
#include "rsn_supp/wpa.h"
#include "fst/fst.h"
#include "crypto/tls.h"
#include "driver_i.h"
#include "scan.h"
#include "p2p_supplicant.h"
@ -786,42 +787,43 @@ void wpas_notify_sta_authorized(struct wpa_supplicant *wpa_s,
}
void wpas_notify_certification(struct wpa_supplicant *wpa_s, int depth,
const char *subject, const char *altsubject[],
int num_altsubject, const char *cert_hash,
const struct wpabuf *cert)
void wpas_notify_certification(struct wpa_supplicant *wpa_s,
struct tls_cert_data *cert,
const char *cert_hash)
{
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_EAP_PEER_CERT
"depth=%d subject='%s'%s%s",
depth, subject, cert_hash ? " hash=" : "",
cert->depth, cert->subject, cert_hash ? " hash=" : "",
cert_hash ? cert_hash : "");
if (cert) {
if (cert->cert) {
char *cert_hex;
size_t len = wpabuf_len(cert) * 2 + 1;
size_t len = wpabuf_len(cert->cert) * 2 + 1;
cert_hex = os_malloc(len);
if (cert_hex) {
wpa_snprintf_hex(cert_hex, len, wpabuf_head(cert),
wpabuf_len(cert));
wpa_snprintf_hex(cert_hex, len, wpabuf_head(cert->cert),
wpabuf_len(cert->cert));
wpa_msg_ctrl(wpa_s, MSG_INFO,
WPA_EVENT_EAP_PEER_CERT
"depth=%d subject='%s' cert=%s",
depth, subject, cert_hex);
cert->depth, cert->subject, cert_hex);
os_free(cert_hex);
}
}
if (altsubject) {
if (cert->altsubject) {
int i;
for (i = 0; i < num_altsubject; i++)
for (i = 0; i < cert->num_altsubject; i++)
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_EAP_PEER_ALT
"depth=%d %s", depth, altsubject[i]);
"depth=%d %s", cert->depth,
cert->altsubject[i]);
}
/* notify the new DBus API */
wpas_dbus_signal_certification(wpa_s, depth, subject, altsubject,
num_altsubject, cert_hash, cert);
wpas_dbus_signal_certification(wpa_s, cert->depth, cert->subject,
cert->altsubject, cert->num_altsubject,
cert_hash, cert->cert);
}

8
wpa_supplicant/notify.h
View File

@ -14,6 +14,7 @@
struct wps_credential;
struct wps_event_m2d;
struct wps_event_fail;
struct tls_cert_data;
int wpas_notify_supplicant_initialized(struct wpa_global *global);
void wpas_notify_supplicant_deinitialized(struct wpa_global *global);
@ -130,10 +131,9 @@ void wpas_notify_persistent_group_removed(struct wpa_supplicant *wpa_s,
void wpas_notify_p2p_wps_failed(struct wpa_supplicant *wpa_s,
struct wps_event_fail *fail);
void wpas_notify_certification(struct wpa_supplicant *wpa_s, int depth,
const char *subject, const char *altsubject[],
int num_altsubject, const char *cert_hash,
const struct wpabuf *cert);
void wpas_notify_certification(struct wpa_supplicant *wpa_s,
struct tls_cert_data *cert,
const char *cert_hash);
void wpas_notify_preq(struct wpa_supplicant *wpa_s,
const u8 *addr, const u8 *dst, const u8 *bssid,
const u8 *ie, size_t ie_len, u32 ssi_signal);

9
wpa_supplicant/wpas_glue.c
View File

@ -1017,15 +1017,12 @@ static void wpa_supplicant_port_cb(void *ctx, int authorized)
}
static void wpa_supplicant_cert_cb(void *ctx, int depth, const char *subject,
const char *altsubject[], int num_altsubject,
const char *cert_hash,
const struct wpabuf *cert)
static void wpa_supplicant_cert_cb(void *ctx, struct tls_cert_data *cert,
const char *cert_hash)
{
struct wpa_supplicant *wpa_s = ctx;
wpas_notify_certification(wpa_s, depth, subject, altsubject,
num_altsubject, cert_hash, cert);
wpas_notify_certification(wpa_s, cert, cert_hash);
}