#include "gssapiP_eap.h"
-VALUE_PAIR *
-gss_eap_radius_attr_provider::copyAvps(const VALUE_PAIR *src)
+#define VENDORATTR(vendor, attr) ((vendor) << 16 | (attr))
+
+#ifndef ATTRID
+#define ATTRID(attr) ((attr) & 0xFFFF)
+#endif
+
+static gss_buffer_desc radiusUrnPrefix = {
+ sizeof("urn:x-radius:") - 1,
+ (void *)"urn:x-radius:"
+};
+
+static struct rs_error *
+radiusAllocHandle(const char *configFile,
+ rs_handle **pHandle)
{
- const VALUE_PAIR *vp;
- VALUE_PAIR *dst = NULL, **pDst = &dst;
+ rs_handle *rh;
+ struct rs_alloc_scheme ralloc;
- for (vp = src; vp != NULL; vp = vp->next) {
- VALUE_PAIR *vp2;
+ *pHandle = NULL;
- vp2 = (VALUE_PAIR *)GSSEAP_CALLOC(1, sizeof(*vp2));
- if (vp2 == NULL) {
- rc_avpair_free(dst);
- return NULL;
- }
- memcpy(vp2, vp, sizeof(*vp));
- vp2->next = NULL;
- *pDst = vp2;
- pDst = &vp2->next;
+ if (configFile == NULL || configFile[0] == '\0')
+ configFile = RS_CONFIG_FILE;
+
+ if (rs_context_create(&rh, RS_DICT_FILE) != 0)
+ return NULL;
+
+ ralloc.calloc = gssEapCalloc;
+ ralloc.malloc = gssEapMalloc;
+ ralloc.free = gssEapFree;
+ ralloc.realloc = gssEapRealloc;
+
+ rs_context_set_alloc_scheme(rh, &ralloc);
+
+ if (rs_context_read_config(rh, configFile) != 0) {
+ rs_context_destroy(rh);
+ return rs_err_ctx_pop(rh);
}
- return dst;
+ *pHandle = rh;
+ return NULL;
}
gss_eap_radius_attr_provider::gss_eap_radius_attr_provider(void)
gss_eap_radius_attr_provider::~gss_eap_radius_attr_provider(void)
{
if (m_rh != NULL)
- rc_config_free(m_rh);
+ rs_context_destroy(m_rh);
if (m_avps != NULL)
- rc_avpair_free(m_avps);
+ pairfree(&m_avps);
}
bool
-gss_eap_radius_attr_provider::initFromGssCred(const gss_cred_id_t cred)
+gss_eap_radius_attr_provider::allocRadHandle(const std::string &configFile)
{
- OM_uint32 minor;
+ m_configFile.assign(configFile);
- return !GSS_ERROR(gssEapRadiusAllocHandle(&minor, cred, &m_rh));
+ /*
+ * Currently none of the FreeRADIUS functions we use here actually take
+ * a handle, so we may as well leave it as NULL.
+ */
+#if 0
+ radiusAllocHandle(m_configFile.c_str(), &m_rh);
+
+ return (m_rh != NULL);
+#else
+ return true;
+#endif
}
bool
if (!gss_eap_attr_provider::initFromExistingContext(manager, ctx))
return false;
- if (!initFromGssCred(GSS_C_NO_CREDENTIAL))
+ radius = static_cast<const gss_eap_radius_attr_provider *>(ctx);
+
+ if (!allocRadHandle(radius->m_configFile))
return false;
- radius = static_cast<const gss_eap_radius_attr_provider *>(ctx);
- if (radius->m_avps != NULL) {
- m_avps = copyAvps(radius->getAvps());
- }
+ if (radius->m_avps != NULL)
+ m_avps = paircopy(const_cast<VALUE_PAIR *>(radius->getAvps()));
return true;
}
const gss_cred_id_t gssCred,
const gss_ctx_id_t gssCtx)
{
+ std::string configFile(RS_CONFIG_FILE);
+
if (!gss_eap_attr_provider::initFromGssContext(manager, gssCred, gssCtx))
return false;
- if (!initFromGssCred(gssCred))
+ if (gssCred != GSS_C_NO_CREDENTIAL && gssCred->radiusConfigFile != NULL)
+ configFile.assign(gssCred->radiusConfigFile);
+
+ if (!allocRadHandle(configFile))
return false;
if (gssCtx != GSS_C_NO_CONTEXT) {
if (gssCtx->acceptorCtx.avps != NULL) {
- m_avps = copyAvps(gssCtx->acceptorCtx.avps);
+ m_avps = paircopy(gssCtx->acceptorCtx.avps);
if (m_avps == NULL)
return false;
}
}
static bool
-isSecretAttributeP(int attrid, int vendor)
+isHiddenAttributeP(int attrid, uint16_t vendor)
{
bool ret = false;
switch (vendor) {
- case RADIUS_VENDOR_ID_MICROSOFT:
+ case VENDORPEC_MS:
switch (attrid) {
- case RADIUS_VENDOR_ATTR_MS_MPPE_SEND_KEY:
- case RADIUS_VENDOR_ATTR_MS_MPPE_RECV_KEY:
+ case PW_MS_MPPE_SEND_KEY:
+ case PW_MS_MPPE_RECV_KEY:
ret = true;
break;
default:
break;
}
+ case VENDORPEC_UKERNA:
+ ret = true;
+ break;
default:
break;
}
for (vp = m_avps; vp != NULL; vp = vp->next) {
gss_buffer_desc attribute;
-
- if (isSecretAttributeP(ATTRID(vp->attribute), VENDOR(vp->attribute)))
+ char attrid[64];
+ if (isHiddenAttributeP(ATTRID(vp->attribute), VENDOR(vp->attribute)))
continue;
if (alreadyAddedAttributeP(seen, vp))
continue;
- attribute.value = (void *)vp->name;
- attribute.length = strlen(vp->name);
+ snprintf(attrid, sizeof(attrid), "%s%d",
+ (char *)radiusUrnPrefix.value, vp->attribute);
+
+ attribute.value = attrid;
+ attribute.length = strlen(attrid);
if (!addAttribute(this, &attribute, data))
return false;
{
OM_uint32 tmpMinor;
gss_buffer_desc strAttr = GSS_C_EMPTY_BUFFER;
- DICT_ATTR *d;
+ DICT_ATTR *da;
int attrid;
char *s;
- /* XXX vendor */
-
duplicateBuffer(*attr, &strAttr);
s = (char *)strAttr.value;
- if (isdigit(((char *)strAttr.value)[0])) {
+ if (attr->length < radiusUrnPrefix.length ||
+ memcmp(s, radiusUrnPrefix.value, radiusUrnPrefix.length) != 0)
+ return false;
+
+ s += radiusUrnPrefix.length;
+
+ if (isdigit(*s)) {
attrid = strtoul(s, NULL, 10);
} else {
- d = rc_dict_findattr(m_rh, (char *)s);
- if (d == NULL) {
+ da = dict_attrbyname(s);
+ if (da == NULL) {
gss_release_buffer(&tmpMinor, &strAttr);
return false;
}
- attrid = d->value;
+ attrid = da->attr;
}
gss_release_buffer(&tmpMinor, &strAttr);
value, display_value, more);
}
-static bool
-isPrintableAttributeP(VALUE_PAIR *vp)
-{
- size_t i;
-
- for (i = 0; i < sizeof(vp->strvalue); i++) {
- if (!isprint(vp->strvalue[i]))
- return false;
- }
-
- return true;
-}
-
bool
-gss_eap_radius_attr_provider::getAttribute(int attrid,
- int vendor,
+gss_eap_radius_attr_provider::getAttribute(uint16_t vattrid,
+ uint16_t vendor,
int *authenticated,
int *complete,
gss_buffer_t value,
gss_buffer_t display_value,
int *more) const
{
- OM_uint32 tmpMinor;
+ uint32_t attrid = VENDORATTR(vendor, vattrid);
VALUE_PAIR *vp;
- int i = *more;
- int max = 0;
- char name[NAME_LENGTH + 1];
- char displayString[AUTH_STRING_LEN + 1];
- gss_buffer_desc valueBuf = GSS_C_EMPTY_BUFFER;
- gss_buffer_desc displayBuf = GSS_C_EMPTY_BUFFER;
+ int i = *more, count = 0;
*more = 0;
- if (isSecretAttributeP(attrid, vendor))
- return false;
-
- vp = rc_avpair_get(m_avps, attrid, vendor);
- if (vp == NULL)
+ if (isHiddenAttributeP(attrid, vendor))
return false;
if (i == -1)
i = 0;
- do {
- if (i == max)
+ for (vp = pairfind(m_avps, attrid);
+ vp != NULL;
+ vp = pairfind(vp->next, attrid)) {
+ if (count++ == i) {
+ if (pairfind(vp->next, attrid) != NULL)
+ *more = count;
break;
+ }
+ }
- max++;
- } while ((vp = rc_avpair_get(vp->next, attrid, vendor)) != NULL);
-
- if (i > max)
+ if (vp == NULL && *more == 0)
return false;
- if (vp->type == PW_TYPE_STRING) {
- valueBuf.value = (void *)vp->strvalue;
- valueBuf.length = vp->lvalue;
- } else {
- valueBuf.value = (void *)&vp->lvalue;
- valueBuf.length = 4;
- }
+ if (value != GSS_C_NO_BUFFER) {
+ gss_buffer_desc valueBuf;
+
+ valueBuf.value = (void *)vp->vp_octets;
+ valueBuf.length = vp->length;
- if (value != GSS_C_NO_BUFFER)
duplicateBuffer(valueBuf, value);
+ }
- if (display_value != GSS_C_NO_BUFFER &&
- isPrintableAttributeP(vp)) {
- if (rc_avpair_tostr(m_rh, vp, name, NAME_LENGTH,
- displayString, AUTH_STRING_LEN) != 0) {
- gss_release_buffer(&tmpMinor, value);
- return false;
- }
+ if (display_value != GSS_C_NO_BUFFER) {
+ char displayString[MAX_STRING_LEN];
+ gss_buffer_desc displayBuf;
+ displayBuf.length = vp_prints_value(displayString,
+ sizeof(displayString), vp, 0);
displayBuf.value = (void *)displayString;
- displayBuf.length = strlen(displayString);
duplicateBuffer(displayBuf, display_value);
}
if (complete != NULL)
*complete = true;
- if (max > i)
- *more = i;
-
return true;
}
bool
-gss_eap_radius_attr_provider::getAttribute(int attrid,
+gss_eap_radius_attr_provider::getFragmentedAttribute(uint16_t attribute,
+ uint16_t vendor,
+ int *authenticated,
+ int *complete,
+ gss_buffer_t value) const
+{
+ OM_uint32 major, minor;
+
+ major = gssEapRadiusGetAvp(&minor, m_avps, attribute, vendor, value, TRUE);
+
+ if (authenticated != NULL)
+ *authenticated = m_authenticated;
+ if (complete != NULL)
+ *complete = true;
+
+ return !GSS_ERROR(major);
+}
+
+bool
+gss_eap_radius_attr_provider::getAttribute(uint32_t attrid,
int *authenticated,
int *complete,
gss_buffer_t value,
if (authenticated && !m_authenticated)
return (gss_any_t)NULL;
- return (gss_any_t)copyAvps(m_avps);
+ return (gss_any_t)paircopy(m_avps);
}
void
gss_eap_radius_attr_provider::releaseAnyNameMapping(gss_buffer_t type_id,
gss_any_t input) const
{
- rc_avpair_free((VALUE_PAIR *)input);
-}
-
-void
-gss_eap_radius_attr_provider::exportToBuffer(gss_buffer_t buffer) const
-{
- buffer->length = 0;
- buffer->value = NULL;
-}
-
-bool
-gss_eap_radius_attr_provider::initFromBuffer(const gss_eap_attr_ctx *ctx,
- const gss_buffer_t buffer)
-{
- if (!gss_eap_attr_provider::initFromBuffer(ctx, buffer))
- return false;
-
- if (!initFromGssCred(GSS_C_NO_CREDENTIAL))
- return false;
-
- return true;
+ pairfree((VALUE_PAIR **)&input);
}
bool
}
OM_uint32
-addAvpFromBuffer(OM_uint32 *minor,
- rc_handle *rh,
- VALUE_PAIR **vp,
- int type,
- gss_buffer_t buffer)
+gssEapRadiusAddAvp(OM_uint32 *minor,
+ rs_handle *rh,
+ VALUE_PAIR **vps,
+ uint16_t vattrid,
+ uint16_t vendor,
+ gss_buffer_t buffer)
{
- if (rc_avpair_add(rh, vp, type, buffer->value, buffer->length, 0) == NULL) {
- return GSS_S_FAILURE;
- }
+ uint16_t attrid = VENDORATTR(vendor, vattrid);
+ unsigned char *p = (unsigned char *)buffer->value;
+ size_t remain = buffer->length;
+
+ do {
+ VALUE_PAIR *vp;
+ size_t n = remain;
+
+ if (n > MAX_STRING_LEN)
+ n = MAX_STRING_LEN;
+
+ vp = paircreate(attrid, PW_TYPE_OCTETS);
+ if (vp == NULL) {
+ *minor = ENOMEM;
+ return GSS_S_FAILURE;
+ }
+
+ memcpy(vp->vp_octets, p, n);
+ pairadd(vps, vp);
+
+ p += n;
+ remain -= n;
+ } while (remain != 0);
return GSS_S_COMPLETE;
}
OM_uint32
-getBufferFromAvps(OM_uint32 *minor,
- VALUE_PAIR *vps,
- int type,
- gss_buffer_t buffer,
- int concat)
+gssEapRadiusGetRawAvp(OM_uint32 *minor,
+ VALUE_PAIR *vps,
+ uint16_t type,
+ uint16_t vendor,
+ VALUE_PAIR **vp)
+{
+ uint16_t attr = VENDORATTR(vendor, type);
+
+ *vp = pairfind(vps, attr);
+
+ return (*vp == NULL) ? GSS_S_UNAVAILABLE : GSS_S_COMPLETE;
+}
+
+OM_uint32
+gssEapRadiusGetAvp(OM_uint32 *minor,
+ VALUE_PAIR *vps,
+ uint16_t type,
+ uint16_t vendor,
+ gss_buffer_t buffer,
+ int concat)
{
VALUE_PAIR *vp;
unsigned char *p;
+ uint32_t attr = VENDORATTR(vendor, type);
buffer->length = 0;
buffer->value = NULL;
- vp = rc_avpair_get(vps, type, 0);
+ vp = pairfind(vps, attr);
if (vp == NULL)
return GSS_S_UNAVAILABLE;
do {
- buffer->length += vp->lvalue;
- } while (concat && (vp = rc_avpair_get(vp->next, type, 0)) != NULL);
+ buffer->length += vp->length;
+ } while (concat && (vp = pairfind(vp->next, attr)) != NULL);
buffer->value = GSSEAP_MALLOC(buffer->length);
if (buffer->value == NULL) {
p = (unsigned char *)buffer->value;
- for (vp = rc_avpair_get(vps, type, 0);
+ for (vp = pairfind(vps, attr);
concat && vp != NULL;
- vp = rc_avpair_get(vp->next, type, 0)) {
- memcpy(p, vp->strvalue, vp->lvalue);
- p += vp->lvalue;
+ vp = pairfind(vp->next, attr)) {
+ memcpy(p, vp->vp_octets, vp->length);
+ p += vp->length;
}
*minor = 0;
}
OM_uint32
-gssEapRadiusAllocHandle(OM_uint32 *minor,
- const gss_cred_id_t cred,
- rc_handle **pHandle)
+gssEapRadiusMapError(OM_uint32 *minor,
+ struct rs_error *err)
{
- rc_handle *rh;
- const char *config = RC_CONFIG_FILE;
+ if (err != NULL)
+ rs_err_code(err, 1);
- *pHandle = NULL;
+ return GSS_S_FAILURE;
+}
+
+OM_uint32
+gssEapRadiusAllocConn(OM_uint32 *minor,
+ const gss_cred_id_t cred,
+ gss_ctx_id_t ctx)
+{
+ struct gss_eap_acceptor_ctx *actx = &ctx->acceptorCtx;
+ const char *configFile = NULL;
+ struct rs_error *err;
+
+ assert(actx->radHandle == NULL);
+ assert(actx->radConn == NULL);
if (cred != GSS_C_NO_CREDENTIAL && cred->radiusConfigFile != NULL)
- config = cred->radiusConfigFile;
+ configFile = cred->radiusConfigFile;
- rh = rc_read_config((char *)config);
- if (rh == NULL) {
- *minor = errno;
- rc_config_free(rh);
- return GSS_S_FAILURE;
+ err = radiusAllocHandle(configFile, &actx->radHandle);
+ if (err != NULL || actx->radHandle == NULL) {
+ return gssEapRadiusMapError(minor, err);
}
- if (rc_read_dictionary(rh, rc_conf_str(rh, (char *)"dictionary")) != 0) {
- *minor = errno;
- return GSS_S_FAILURE;
+ if (rs_conn_create(actx->radHandle, &actx->radConn, "gss-eap") != 0) {
+ return gssEapRadiusMapError(minor, rs_err_conn_pop(actx->radConn));
}
- *pHandle = rh;
+ /* XXX TODO rs_conn_select_server does not exist yet */
+#if 0
+ if (actx->radServer != NULL) {
+ if (rs_conn_select_server(actx->radConn, actx->radServer) != 0)
+ return gssEapRadiusMapError(minor, rs_err_conn_pop(actx->radConn));
+ }
+#endif
+
+ *minor = 0;
return GSS_S_COMPLETE;
}
+
+/*
+ * Encoding is:
+ * 4 octet NBO attribute ID | 4 octet attribute length | attribute data
+ */
+static size_t
+avpSize(const VALUE_PAIR *vp)
+{
+ size_t size = 4 + 1;
+
+ if (vp != NULL)
+ size += vp->length;
+
+ return size;
+}
+
+static bool
+avpExport(rs_handle *rh,
+ const VALUE_PAIR *vp,
+ unsigned char **pBuffer,
+ size_t *pRemain)
+{
+ unsigned char *p = *pBuffer;
+ size_t remain = *pRemain;
+
+ assert(remain >= avpSize(vp));
+
+ store_uint32_be(vp->attribute, p);
+
+ switch (vp->type) {
+ case PW_TYPE_INTEGER:
+ case PW_TYPE_IPADDR:
+ case PW_TYPE_DATE:
+ p[4] = 4;
+ store_uint32_be(vp->lvalue, p + 5);
+ break;
+ default:
+ assert(vp->length <= MAX_STRING_LEN);
+ p[4] = (uint8_t)vp->length;
+ memcpy(p + 5, vp->vp_octets, vp->length);
+ break;
+ }
+
+ *pBuffer += 5 + p[4];
+ *pRemain -= 5 + p[4];
+
+ return true;
+
+}
+
+static bool
+avpImport(rs_handle *rh,
+ VALUE_PAIR **pVp,
+ unsigned char **pBuffer,
+ size_t *pRemain)
+{
+ unsigned char *p = *pBuffer;
+ size_t remain = *pRemain;
+ VALUE_PAIR *vp = NULL;
+ DICT_ATTR *da;
+ OM_uint32 attrid;
+
+ if (remain < avpSize(NULL))
+ goto fail;
+
+ attrid = load_uint32_be(p);
+ p += 4;
+ remain -= 4;
+
+ da = dict_attrbyvalue(attrid);
+ if (da == NULL)
+ goto fail;
+
+ vp = pairalloc(da);
+ if (vp == NULL) {
+ throw new std::bad_alloc;
+ goto fail;
+ }
+
+ if (remain < p[0])
+ goto fail;
+
+ switch (vp->type) {
+ case PW_TYPE_INTEGER:
+ case PW_TYPE_IPADDR:
+ case PW_TYPE_DATE:
+ if (p[0] != 4)
+ goto fail;
+
+ vp->length = 4;
+ vp->lvalue = load_uint32_be(p + 1);
+ p += 5;
+ remain -= 5;
+ break;
+ case PW_TYPE_STRING:
+ /* check enough room to NUL terminate */
+ if (p[0] >= MAX_STRING_LEN)
+ goto fail;
+ /* fallthrough */
+ default:
+ vp->length = (uint32_t)p[0];
+ memcpy(vp->vp_octets, p + 1, vp->length);
+
+ if (vp->type == PW_TYPE_STRING)
+ vp->vp_strvalue[vp->length] = '\0';
+
+ p += 1 + vp->length;
+ remain -= 1 + vp->length;
+ break;
+ }
+
+ *pVp = vp;
+ *pBuffer = p;
+ *pRemain = remain;
+
+ return true;
+
+fail:
+ pairbasicfree(vp);
+ return false;
+}
+
+bool
+gss_eap_radius_attr_provider::initFromBuffer(const gss_eap_attr_ctx *ctx,
+ const gss_buffer_t buffer)
+{
+ unsigned char *p = (unsigned char *)buffer->value;
+ size_t remain = buffer->length;
+ OM_uint32 configFileLen, count;
+ VALUE_PAIR **pNext = &m_avps;
+
+ if (!gss_eap_attr_provider::initFromBuffer(ctx, buffer))
+ return false;
+
+ if (remain < 4)
+ return false;
+
+ configFileLen = load_uint32_be(p);
+ p += 4;
+ remain -= 4;
+
+ if (remain < configFileLen)
+ return false;
+
+ std::string configFile((char *)p, configFileLen);
+ p += configFileLen;
+ remain -= configFileLen;
+
+ if (!allocRadHandle(configFile))
+ return false;
+
+ if (remain < 4)
+ return false;
+
+ count = load_uint32_be(p);
+ p += 4;
+ remain -= 4;
+
+ do {
+ VALUE_PAIR *attr;
+
+ if (!avpImport(m_rh, &attr, &p, &remain))
+ return false;
+
+ *pNext = attr;
+ pNext = &attr->next;
+
+ count--;
+ } while (remain != 0);
+
+ if (count != 0)
+ return false;
+
+ return true;
+}
+
+void
+gss_eap_radius_attr_provider::exportToBuffer(gss_buffer_t buffer) const
+{
+ OM_uint32 count = 0;
+ VALUE_PAIR *vp;
+ unsigned char *p;
+ size_t remain = 4 + m_configFile.length() + 4;
+
+ for (vp = m_avps; vp != NULL; vp = vp->next) {
+ remain += avpSize(vp);
+ count++;
+ }
+
+ buffer->value = GSSEAP_MALLOC(remain);
+ if (buffer->value == NULL) {
+ throw new std::bad_alloc;
+ return;
+ }
+ buffer->length = remain;
+
+ p = (unsigned char *)buffer->value;
+
+ store_uint32_be(m_configFile.length(), p);
+ p += 4;
+ remain -= 4;
+
+ memcpy(p, m_configFile.c_str(), m_configFile.length());
+ p += m_configFile.length();
+ remain -= m_configFile.length();
+
+ store_uint32_be(count, p);
+ p += 4;
+ remain -= 4;
+
+ for (vp = m_avps; vp != NULL; vp = vp->next) {
+ avpExport(m_rh, vp, &p, &remain);
+ }
+
+ assert(remain == 0);
+}
+
+time_t
+gss_eap_radius_attr_provider::getExpiryTime(void) const
+{
+ VALUE_PAIR *vp;
+
+ vp = pairfind(m_avps, PW_SESSION_TIMEOUT);
+ if (vp == NULL || vp->lvalue == 0)
+ return 0;
+
+ return time(NULL) + vp->lvalue;
+}
projects / mech_eap.git / blobdiff