Adding upstream version 115.8.0esr.upstream/115.8.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 663 insertions, 0 deletions

diff --git a/security/nss/lib/pkcs7/p7common.c b/security/nss/lib/pkcs7/p7common.c
new file mode 100644
index 0000000000..8a6ac033e5
--- /dev/null
+++ b/security/nss/lib/pkcs7/p7common.c
@@ -0,0 +1,663 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * PKCS7 implementation -- the exported parts that are used whether
+ * creating or decoding.
+ */
+
+#include "p7local.h"
+
+#include "cert.h"
+#include "secitem.h"
+#include "secoid.h"
+#include "pk11func.h"
+
+/*
+ * Find out (saving pointer to lookup result for future reference)
+ * and return the inner content type.
+ */
+SECOidTag
+SEC_PKCS7ContentType(SEC_PKCS7ContentInfo *cinfo)
+{
+    if (cinfo->contentTypeTag == NULL)
+        cinfo->contentTypeTag = SECOID_FindOID(&(cinfo->contentType));
+
+    if (cinfo->contentTypeTag == NULL)
+        return SEC_OID_UNKNOWN;
+
+    return cinfo->contentTypeTag->offset;
+}
+
+/*
+ * Destroy a PKCS7 contentInfo and all of its sub-pieces.
+ */
+void
+SEC_PKCS7DestroyContentInfo(SEC_PKCS7ContentInfo *cinfo)
+{
+    SECOidTag kind;
+    CERTCertificate **certs;
+    CERTCertificateList **certlists;
+    SEC_PKCS7SignerInfo **signerinfos;
+    SEC_PKCS7RecipientInfo **recipientinfos;
+
+    PORT_Assert(cinfo->refCount > 0);
+    if (cinfo->refCount <= 0)
+        return;
+
+    cinfo->refCount--;
+    if (cinfo->refCount > 0)
+        return;
+
+    certs = NULL;
+    certlists = NULL;
+    recipientinfos = NULL;
+    signerinfos = NULL;
+
+    kind = SEC_PKCS7ContentType(cinfo);
+    switch (kind) {
+        case SEC_OID_PKCS7_ENVELOPED_DATA: {
+            SEC_PKCS7EnvelopedData *edp;
+
+            edp = cinfo->content.envelopedData;
+            if (edp != NULL) {
+                recipientinfos = edp->recipientInfos;
+            }
+        } break;
+        case SEC_OID_PKCS7_SIGNED_DATA: {
+            SEC_PKCS7SignedData *sdp;
+
+            sdp = cinfo->content.signedData;
+            if (sdp != NULL) {
+                certs = sdp->certs;
+                certlists = sdp->certLists;
+                signerinfos = sdp->signerInfos;
+            }
+        } break;
+        case SEC_OID_PKCS7_SIGNED_ENVELOPED_DATA: {
+            SEC_PKCS7SignedAndEnvelopedData *saedp;
+
+            saedp = cinfo->content.signedAndEnvelopedData;
+            if (saedp != NULL) {
+                certs = saedp->certs;
+                certlists = saedp->certLists;
+                recipientinfos = saedp->recipientInfos;
+                signerinfos = saedp->signerInfos;
+                if (saedp->sigKey != NULL)
+                    PK11_FreeSymKey(saedp->sigKey);
+            }
+        } break;
+        default:
+            /* XXX Anything else that needs to be "manually" freed/destroyed? */
+            break;
+    }
+
+    if (certs != NULL) {
+        CERTCertificate *cert;
+
+        while ((cert = *certs++) != NULL) {
+            CERT_DestroyCertificate(cert);
+        }
+    }
+
+    if (certlists != NULL) {
+        CERTCertificateList *certlist;
+
+        while ((certlist = *certlists++) != NULL) {
+            CERT_DestroyCertificateList(certlist);
+        }
+    }
+
+    if (recipientinfos != NULL) {
+        SEC_PKCS7RecipientInfo *ri;
+
+        while ((ri = *recipientinfos++) != NULL) {
+            if (ri->cert != NULL)
+                CERT_DestroyCertificate(ri->cert);
+        }
+    }
+
+    if (signerinfos != NULL) {
+        SEC_PKCS7SignerInfo *si;
+
+        while ((si = *signerinfos++) != NULL) {
+            if (si->cert != NULL)
+                CERT_DestroyCertificate(si->cert);
+            if (si->certList != NULL)
+                CERT_DestroyCertificateList(si->certList);
+        }
+    }
+
+    if (cinfo->poolp != NULL) {
+        PORT_FreeArena(cinfo->poolp, PR_FALSE); /* XXX clear it? */
+    }
+}
+
+/*
+ * Return a copy of the given contentInfo.  The copy may be virtual
+ * or may be real -- either way, the result needs to be passed to
+ * SEC_PKCS7DestroyContentInfo later (as does the original).
+ */
+SEC_PKCS7ContentInfo *
+SEC_PKCS7CopyContentInfo(SEC_PKCS7ContentInfo *cinfo)
+{
+    if (cinfo == NULL)
+        return NULL;
+
+    PORT_Assert(cinfo->refCount > 0);
+
+    if (cinfo->created) {
+        /*
+         * Want to do a real copy of these; otherwise subsequent
+         * changes made to either copy are likely to be a surprise.
+         * XXX I suspect that this will not actually be called for yet,
+         * which is why the assert, so to notice if it is...
+         */
+        PORT_Assert(0);
+        /*
+         * XXX Create a new pool here, and copy everything from
+         * within.  For cert stuff, need to call the appropriate
+         * copy functions, etc.
+         */
+    }
+
+    cinfo->refCount++;
+    return cinfo;
+}
+
+/*
+ * Return a pointer to the actual content.  In the case of those types
+ * which are encrypted, this returns the *plain* content.
+ * XXX Needs revisiting if/when we handle nested encrypted types.
+ */
+SECItem *
+SEC_PKCS7GetContent(SEC_PKCS7ContentInfo *cinfo)
+{
+    SECOidTag kind;
+
+    kind = SEC_PKCS7ContentType(cinfo);
+    switch (kind) {
+        case SEC_OID_PKCS7_DATA:
+            return cinfo->content.data;
+        case SEC_OID_PKCS7_DIGESTED_DATA: {
+            SEC_PKCS7DigestedData *digd;
+
+            digd = cinfo->content.digestedData;
+            if (digd == NULL)
+                break;
+            return SEC_PKCS7GetContent(&(digd->contentInfo));
+        }
+        case SEC_OID_PKCS7_ENCRYPTED_DATA: {
+            SEC_PKCS7EncryptedData *encd;
+
+            encd = cinfo->content.encryptedData;
+            if (encd == NULL)
+                break;
+            return &(encd->encContentInfo.plainContent);
+        }
+        case SEC_OID_PKCS7_ENVELOPED_DATA: {
+            SEC_PKCS7EnvelopedData *envd;
+
+            envd = cinfo->content.envelopedData;
+            if (envd == NULL)
+                break;
+            return &(envd->encContentInfo.plainContent);
+        }
+        case SEC_OID_PKCS7_SIGNED_DATA: {
+            SEC_PKCS7SignedData *sigd;
+
+            sigd = cinfo->content.signedData;
+            if (sigd == NULL)
+                break;
+            return SEC_PKCS7GetContent(&(sigd->contentInfo));
+        }
+        case SEC_OID_PKCS7_SIGNED_ENVELOPED_DATA: {
+            SEC_PKCS7SignedAndEnvelopedData *saed;
+
+            saed = cinfo->content.signedAndEnvelopedData;
+            if (saed == NULL)
+                break;
+            return &(saed->encContentInfo.plainContent);
+        }
+        default:
+            PORT_Assert(0);
+            break;
+    }
+
+    return NULL;
+}
+
+/*
+ * XXX Fix the placement and formatting of the
+ * following routines (i.e. make them consistent with the rest of
+ * the pkcs7 code -- I think some/many belong in other files and
+ * they all need a formatting/style rehaul)
+ */
+
+/* retrieve the algorithm identifier for encrypted data.
+ * the identifier returned is a copy of the algorithm identifier
+ * in the content info and needs to be freed after being used.
+ *
+ *   cinfo is the content info for which to retrieve the
+ *     encryption algorithm.
+ *
+ * if the content info is not encrypted data or an error
+ * occurs NULL is returned.
+ */
+SECAlgorithmID *
+SEC_PKCS7GetEncryptionAlgorithm(SEC_PKCS7ContentInfo *cinfo)
+{
+    SECAlgorithmID *alg = 0;
+    switch (SEC_PKCS7ContentType(cinfo)) {
+        case SEC_OID_PKCS7_ENCRYPTED_DATA:
+            alg = &cinfo->content.encryptedData->encContentInfo.contentEncAlg;
+            break;
+        case SEC_OID_PKCS7_ENVELOPED_DATA:
+            alg = &cinfo->content.envelopedData->encContentInfo.contentEncAlg;
+            break;
+        case SEC_OID_PKCS7_SIGNED_ENVELOPED_DATA:
+            alg = &cinfo->content.signedAndEnvelopedData
+                       ->encContentInfo.contentEncAlg;
+            break;
+        default:
+            alg = 0;
+            break;
+    }
+
+    return alg;
+}
+
+/* set the content of the content info.  For data content infos,
+ * the data is set.  For encrytped content infos, the plainContent
+ * is set, and is expected to be encrypted later.
+ *
+ * cinfo is the content info where the data will be set
+ *
+ * buf is a buffer of the data to set
+ *
+ * len is the length of the data being set.
+ *
+ * in the event of an error, SECFailure is returned.  SECSuccess
+ * indicates the content was successfully set.
+ */
+SECStatus
+SEC_PKCS7SetContent(SEC_PKCS7ContentInfo *cinfo,
+                    const char *buf,
+                    unsigned long len)
+{
+    SECOidTag cinfo_type;
+    SECStatus rv;
+    SECItem content;
+    SECOidData *contentTypeTag = NULL;
+
+    content.type = siBuffer;
+    content.data = (unsigned char *)buf;
+    content.len = len;
+
+    cinfo_type = SEC_PKCS7ContentType(cinfo);
+
+    /* set inner content */
+    switch (cinfo_type) {
+        case SEC_OID_PKCS7_SIGNED_DATA:
+            if (content.len > 0) {
+                /* we "leak" the old content here, but as it's all in the pool */
+                /* it does not really matter */
+
+                /* create content item if necessary */
+                if (cinfo->content.signedData->contentInfo.content.data == NULL)
+                    cinfo->content.signedData->contentInfo.content.data = SECITEM_AllocItem(cinfo->poolp, NULL, 0);
+                rv = SECITEM_CopyItem(cinfo->poolp,
+                                      cinfo->content.signedData->contentInfo.content.data,
+                                      &content);
+            } else {
+                cinfo->content.signedData->contentInfo.content.data->data = NULL;
+                cinfo->content.signedData->contentInfo.content.data->len = 0;
+                rv = SECSuccess;
+            }
+            if (rv == SECFailure)
+                goto loser;
+
+            break;
+        case SEC_OID_PKCS7_ENCRYPTED_DATA:
+            /* XXX this forces the inner content type to be "data" */
+            /* do we really want to override without asking or reason? */
+            contentTypeTag = SECOID_FindOIDByTag(SEC_OID_PKCS7_DATA);
+            if (contentTypeTag == NULL)
+                goto loser;
+            rv = SECITEM_CopyItem(cinfo->poolp,
+                                  &(cinfo->content.encryptedData->encContentInfo.contentType),
+                                  &(contentTypeTag->oid));
+            if (rv == SECFailure)
+                goto loser;
+            if (content.len > 0) {
+                rv = SECITEM_CopyItem(cinfo->poolp,
+                                      &(cinfo->content.encryptedData->encContentInfo.plainContent),
+                                      &content);
+            } else {
+                cinfo->content.encryptedData->encContentInfo.plainContent.data = NULL;
+                cinfo->content.encryptedData->encContentInfo.encContent.data = NULL;
+                cinfo->content.encryptedData->encContentInfo.plainContent.len = 0;
+                cinfo->content.encryptedData->encContentInfo.encContent.len = 0;
+                rv = SECSuccess;
+            }
+            if (rv == SECFailure)
+                goto loser;
+            break;
+        case SEC_OID_PKCS7_DATA:
+            cinfo->content.data = (SECItem *)PORT_ArenaZAlloc(cinfo->poolp,
+                                                              sizeof(SECItem));
+            if (cinfo->content.data == NULL)
+                goto loser;
+            if (content.len > 0) {
+                rv = SECITEM_CopyItem(cinfo->poolp,
+                                      cinfo->content.data, &content);
+            } else {
+                /* handle case with NULL content */
+                rv = SECSuccess;
+            }
+            if (rv == SECFailure)
+                goto loser;
+            break;
+        default:
+            goto loser;
+    }
+
+    return SECSuccess;
+
+loser:
+
+    return SECFailure;
+}
+
+/* the content of an encrypted data content info is encrypted.
+ * it is assumed that for encrypted data, that the data has already
+ * been set and is in the "plainContent" field of the content info.
+ *
+ * cinfo is the content info to encrypt
+ *
+ * key is the key with which to perform the encryption.  if the
+ *     algorithm is a password based encryption algorithm, the
+ *     key is actually a password which will be processed per
+ *     PKCS #5.
+ *
+ * in the event of an error, SECFailure is returned.  SECSuccess
+ * indicates a success.
+ */
+SECStatus
+SEC_PKCS7EncryptContents(PLArenaPool *poolp,
+                         SEC_PKCS7ContentInfo *cinfo,
+                         SECItem *key,
+                         void *wincx)
+{
+    SECAlgorithmID *algid = NULL;
+    SECItem *src;
+    SECItem *dest;
+    SECItem *blocked_data = NULL;
+    void *mark;
+    void *cx;
+    PK11SymKey *eKey = NULL;
+    PK11SlotInfo *slot = NULL;
+
+    CK_MECHANISM_TYPE cryptoMechType;
+    int bs;
+    SECStatus rv = SECFailure;
+    SECItem *c_param = NULL;
+
+    if ((cinfo == NULL) || (key == NULL))
+        return SECFailure;
+
+    if (SEC_PKCS7ContentType(cinfo) != SEC_OID_PKCS7_ENCRYPTED_DATA)
+        return SECFailure;
+
+    algid = SEC_PKCS7GetEncryptionAlgorithm(cinfo);
+    if (algid == NULL)
+        return SECFailure;
+
+    if (poolp == NULL)
+        poolp = cinfo->poolp;
+
+    mark = PORT_ArenaMark(poolp);
+
+    src = &cinfo->content.encryptedData->encContentInfo.plainContent;
+    dest = &cinfo->content.encryptedData->encContentInfo.encContent;
+    dest->data = (unsigned char *)PORT_ArenaZAlloc(poolp, (src->len + 64));
+    dest->len = (src->len + 64);
+    if (dest->data == NULL) {
+        rv = SECFailure;
+        goto loser;
+    }
+
+    slot = PK11_GetInternalKeySlot();
+    if (slot == NULL) {
+        rv = SECFailure;
+        goto loser;
+    }
+
+    eKey = PK11_PBEKeyGen(slot, algid, key, PR_FALSE, wincx);
+    if (eKey == NULL) {
+        rv = SECFailure;
+        goto loser;
+    }
+
+    cryptoMechType = PK11_GetPBECryptoMechanism(algid, &c_param, key);
+    if (cryptoMechType == CKM_INVALID_MECHANISM) {
+        rv = SECFailure;
+        goto loser;
+    }
+
+    /* block according to PKCS 8 */
+    bs = PK11_GetBlockSize(cryptoMechType, c_param);
+    rv = SECSuccess;
+    if (bs) {
+        char pad_char;
+        pad_char = (char)(bs - (src->len % bs));
+        if (src->len % bs) {
+            rv = SECSuccess;
+            blocked_data = PK11_BlockData(src, bs);
+            if (blocked_data) {
+                PORT_Memset((blocked_data->data + blocked_data->len - (int)pad_char),
+                            pad_char, (int)pad_char);
+            } else {
+                rv = SECFailure;
+                goto loser;
+            }
+        } else {
+            blocked_data = SECITEM_DupItem(src);
+            if (blocked_data) {
+                blocked_data->data = (unsigned char *)PORT_Realloc(
+                    blocked_data->data,
+                    blocked_data->len + bs);
+                if (blocked_data->data) {
+                    blocked_data->len += bs;
+                    PORT_Memset((blocked_data->data + src->len), (char)bs, bs);
+                } else {
+                    rv = SECFailure;
+                    goto loser;
+                }
+            } else {
+                rv = SECFailure;
+                goto loser;
+            }
+        }
+    } else {
+        blocked_data = SECITEM_DupItem(src);
+        if (!blocked_data) {
+            rv = SECFailure;
+            goto loser;
+        }
+    }
+
+    cx = PK11_CreateContextBySymKey(cryptoMechType, CKA_ENCRYPT,
+                                    eKey, c_param);
+    if (cx == NULL) {
+        rv = SECFailure;
+        goto loser;
+    }
+
+    rv = PK11_CipherOp((PK11Context *)cx, dest->data, (int *)(&dest->len),
+                       (int)(src->len + 64), blocked_data->data,
+                       (int)blocked_data->len);
+    PK11_DestroyContext((PK11Context *)cx, PR_TRUE);
+
+loser:
+    /* let success fall through */
+    if (blocked_data != NULL)
+        SECITEM_ZfreeItem(blocked_data, PR_TRUE);
+
+    if (rv == SECFailure)
+        PORT_ArenaRelease(poolp, mark);
+    else
+        PORT_ArenaUnmark(poolp, mark);
+
+    if (eKey != NULL)
+        PK11_FreeSymKey(eKey);
+
+    if (slot != NULL)
+        PK11_FreeSlot(slot);
+
+    if (c_param != NULL)
+        SECITEM_ZfreeItem(c_param, PR_TRUE);
+
+    return rv;
+}
+
+/* the content of an encrypted data content info is decrypted.
+ * it is assumed that for encrypted data, that the data has already
+ * been set and is in the "encContent" field of the content info.
+ *
+ * cinfo is the content info to decrypt
+ *
+ * key is the key with which to perform the decryption.  if the
+ *     algorithm is a password based encryption algorithm, the
+ *     key is actually a password which will be processed per
+ *     PKCS #5.
+ *
+ * in the event of an error, SECFailure is returned.  SECSuccess
+ * indicates a success.
+ */
+SECStatus
+SEC_PKCS7DecryptContents(PLArenaPool *poolp,
+                         SEC_PKCS7ContentInfo *cinfo,
+                         SECItem *key,
+                         void *wincx)
+{
+    SECAlgorithmID *algid = NULL;
+    SECStatus rv = SECFailure;
+    SECItem *dest, *src;
+    void *mark;
+
+    PK11SymKey *eKey = NULL;
+    PK11SlotInfo *slot = NULL;
+    CK_MECHANISM_TYPE cryptoMechType;
+    void *cx;
+    SECItem *c_param = NULL;
+    int bs;
+
+    if ((cinfo == NULL) || (key == NULL))
+        return SECFailure;
+
+    if (SEC_PKCS7ContentType(cinfo) != SEC_OID_PKCS7_ENCRYPTED_DATA)
+        return SECFailure;
+
+    algid = SEC_PKCS7GetEncryptionAlgorithm(cinfo);
+    if (algid == NULL)
+        return SECFailure;
+
+    if (poolp == NULL)
+        poolp = cinfo->poolp;
+
+    mark = PORT_ArenaMark(poolp);
+
+    src = &cinfo->content.encryptedData->encContentInfo.encContent;
+    dest = &cinfo->content.encryptedData->encContentInfo.plainContent;
+    dest->data = (unsigned char *)PORT_ArenaZAlloc(poolp, (src->len + 64));
+    dest->len = (src->len + 64);
+    if (dest->data == NULL) {
+        rv = SECFailure;
+        goto loser;
+    }
+
+    slot = PK11_GetInternalKeySlot();
+    if (slot == NULL) {
+        rv = SECFailure;
+        goto loser;
+    }
+
+    eKey = PK11_PBEKeyGen(slot, algid, key, PR_FALSE, wincx);
+    if (eKey == NULL) {
+        rv = SECFailure;
+        goto loser;
+    }
+
+    cryptoMechType = PK11_GetPBECryptoMechanism(algid, &c_param, key);
+    if (cryptoMechType == CKM_INVALID_MECHANISM) {
+        rv = SECFailure;
+        goto loser;
+    }
+
+    cx = PK11_CreateContextBySymKey(cryptoMechType, CKA_DECRYPT,
+                                    eKey, c_param);
+    if (cx == NULL) {
+        rv = SECFailure;
+        goto loser;
+    }
+
+    rv = PK11_CipherOp((PK11Context *)cx, dest->data, (int *)(&dest->len),
+                       (int)(src->len + 64), src->data, (int)src->len);
+    PK11_DestroyContext((PK11Context *)cx, PR_TRUE);
+
+    bs = PK11_GetBlockSize(cryptoMechType, c_param);
+    if (bs) {
+        /* check for proper badding in block algorithms.  this assumes
+         * RC2 cbc or a DES cbc variant.  and the padding is thus defined
+         */
+        if (((int)dest->data[dest->len - 1] <= bs) &&
+            ((int)dest->data[dest->len - 1] > 0)) {
+            dest->len -= (int)dest->data[dest->len - 1];
+        } else {
+            rv = SECFailure;
+            /* set an error ? */
+        }
+    }
+
+loser:
+    /* let success fall through */
+    if (rv == SECFailure)
+        PORT_ArenaRelease(poolp, mark);
+    else
+        PORT_ArenaUnmark(poolp, mark);
+
+    if (eKey != NULL)
+        PK11_FreeSymKey(eKey);
+
+    if (slot != NULL)
+        PK11_FreeSlot(slot);
+
+    if (c_param != NULL)
+        SECITEM_ZfreeItem(c_param, PR_TRUE);
+
+    return rv;
+}
+
+SECItem **
+SEC_PKCS7GetCertificateList(SEC_PKCS7ContentInfo *cinfo)
+{
+    switch (SEC_PKCS7ContentType(cinfo)) {
+        case SEC_OID_PKCS7_SIGNED_DATA:
+            return cinfo->content.signedData->rawCerts;
+            break;
+        default:
+            return NULL;
+            break;
+    }
+}
+
+int
+SEC_PKCS7GetKeyLength(SEC_PKCS7ContentInfo *cinfo)
+{
+    if (cinfo->contentTypeTag->offset == SEC_OID_PKCS7_ENVELOPED_DATA)
+        return cinfo->content.envelopedData->encContentInfo.keysize;
+    else
+        return 0;
+}