crypto: testmgr - Add support for the pcomp interface

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

2 files changed, 193 insertions, 0 deletions

diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index a75f11ffb957..e750357b898f 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -72,6 +72,13 @@ struct comp_test_suite {
         } comp, decomp;
 };
 
+struct pcomp_test_suite {
+        struct {
+                struct pcomp_testvec *vecs;
+                unsigned int count;
+        } comp, decomp;
+};
+
 struct hash_test_suite {
         struct hash_testvec *vecs;
         unsigned int count;
@@ -86,6 +93,7 @@ struct alg_test_desc {
                 struct aead_test_suite aead;
                 struct cipher_test_suite cipher;
                 struct comp_test_suite comp;
+                struct pcomp_test_suite pcomp;
                 struct hash_test_suite hash;
         } suite;
 };
@@ -898,6 +906,159 @@ out:
         return ret;
 }
 
+static int test_pcomp(struct crypto_pcomp *tfm,
+                      struct pcomp_testvec *ctemplate,
+                      struct pcomp_testvec *dtemplate, int ctcount,
+                      int dtcount)
+{
+        const char *algo = crypto_tfm_alg_driver_name(crypto_pcomp_tfm(tfm));
+        unsigned int i;
+        char result[COMP_BUF_SIZE];
+        int error;
+
+        for (i = 0; i < ctcount; i++) {
+                struct comp_request req;
+
+                error = crypto_compress_setup(tfm, ctemplate[i].params,
+                                              ctemplate[i].paramsize);
+                if (error) {
+                        pr_err("alg: pcomp: compression setup failed on test "
+                               "%d for %s: error=%d\n", i + 1, algo, error);
+                        return error;
+                }
+
+                error = crypto_compress_init(tfm);
+                if (error) {
+                        pr_err("alg: pcomp: compression init failed on test "
+                               "%d for %s: error=%d\n", i + 1, algo, error);
+                        return error;
+                }
+
+                memset(result, 0, sizeof(result));
+
+                req.next_in = ctemplate[i].input;
+                req.avail_in = ctemplate[i].inlen / 2;
+                req.next_out = result;
+                req.avail_out = ctemplate[i].outlen / 2;
+
+                error = crypto_compress_update(tfm, &req);
+                if (error && (error != -EAGAIN || req.avail_in)) {
+                        pr_err("alg: pcomp: compression update failed on test "
+                               "%d for %s: error=%d\n", i + 1, algo, error);
+                        return error;
+                }
+
+                /* Add remaining input data */
+                req.avail_in += (ctemplate[i].inlen + 1) / 2;
+
+                error = crypto_compress_update(tfm, &req);
+                if (error && (error != -EAGAIN || req.avail_in)) {
+                        pr_err("alg: pcomp: compression update failed on test "
+                               "%d for %s: error=%d\n", i + 1, algo, error);
+                        return error;
+                }
+
+                /* Provide remaining output space */
+                req.avail_out += COMP_BUF_SIZE - ctemplate[i].outlen / 2;
+
+                error = crypto_compress_final(tfm, &req);
+                if (error) {
+                        pr_err("alg: pcomp: compression final failed on test "
+                               "%d for %s: error=%d\n", i + 1, algo, error);
+                        return error;
+                }
+
+                if (COMP_BUF_SIZE - req.avail_out != ctemplate[i].outlen) {
+                        pr_err("alg: comp: Compression test %d failed for %s: "
+                               "output len = %d (expected %d)\n", i + 1, algo,
+                               COMP_BUF_SIZE - req.avail_out,
+                               ctemplate[i].outlen);
+                        return -EINVAL;
+                }
+
+                if (memcmp(result, ctemplate[i].output, ctemplate[i].outlen)) {
+                        pr_err("alg: pcomp: Compression test %d failed for "
+                               "%s\n", i + 1, algo);
+                        hexdump(result, ctemplate[i].outlen);
+                        return -EINVAL;
+                }
+        }
+
+        for (i = 0; i < dtcount; i++) {
+                struct comp_request req;
+
+                error = crypto_decompress_setup(tfm, dtemplate[i].params,
+                                                dtemplate[i].paramsize);
+                if (error) {
+                        pr_err("alg: pcomp: decompression setup failed on "
+                               "test %d for %s: error=%d\n", i + 1, algo,
+                               error);
+                        return error;
+                }
+
+                error = crypto_decompress_init(tfm);
+                if (error) {
+                        pr_err("alg: pcomp: decompression init failed on test "
+                               "%d for %s: error=%d\n", i + 1, algo, error);
+                        return error;
+                }
+
+                memset(result, 0, sizeof(result));
+
+                req.next_in = dtemplate[i].input;
+                req.avail_in = dtemplate[i].inlen / 2;
+                req.next_out = result;
+                req.avail_out = dtemplate[i].outlen / 2;
+
+                error = crypto_decompress_update(tfm, &req);
+                if (error  && (error != -EAGAIN || req.avail_in)) {
+                        pr_err("alg: pcomp: decompression update failed on "
+                               "test %d for %s: error=%d\n", i + 1, algo,
+                               error);
+                        return error;
+                }
+
+                /* Add remaining input data */
+                req.avail_in += (dtemplate[i].inlen + 1) / 2;
+
+                error = crypto_decompress_update(tfm, &req);
+                if (error  && (error != -EAGAIN || req.avail_in)) {
+                        pr_err("alg: pcomp: decompression update failed on "
+                               "test %d for %s: error=%d\n", i + 1, algo,
+                               error);
+                        return error;
+                }
+
+                /* Provide remaining output space */
+                req.avail_out += COMP_BUF_SIZE - dtemplate[i].outlen / 2;
+
+                error = crypto_decompress_final(tfm, &req);
+                if (error  && (error != -EAGAIN || req.avail_in)) {
+                        pr_err("alg: pcomp: decompression final failed on "
+                               "test %d for %s: error=%d\n", i + 1, algo,
+                               error);
+                        return error;
+                }
+
+                if (COMP_BUF_SIZE - req.avail_out != dtemplate[i].outlen) {
+                        pr_err("alg: comp: Decompression test %d failed for "
+                               "%s: output len = %d (expected %d)\n", i + 1,
+                               algo, COMP_BUF_SIZE - req.avail_out,
+                               dtemplate[i].outlen);
+                        return -EINVAL;
+                }
+
+                if (memcmp(result, dtemplate[i].output, dtemplate[i].outlen)) {
+                        pr_err("alg: pcomp: Decompression test %d failed for "
+                               "%s\n", i + 1, algo);
+                        hexdump(result, dtemplate[i].outlen);
+                        return -EINVAL;
+                }
+        }
+
+        return 0;
+}
+
 static int alg_test_aead(const struct alg_test_desc *desc, const char *driver,
                          u32 type, u32 mask)
 {
@@ -1007,6 +1168,28 @@ static int alg_test_comp(const struct alg_test_desc *desc, const char *driver,
         return err;
 }
 
+static int alg_test_pcomp(const struct alg_test_desc *desc, const char *driver,
+                          u32 type, u32 mask)
+{
+        struct crypto_pcomp *tfm;
+        int err;
+
+        tfm = crypto_alloc_pcomp(driver, type, mask);
+        if (IS_ERR(tfm)) {
+                pr_err("alg: pcomp: Failed to load transform for %s: %ld\n",
+                       driver, PTR_ERR(tfm));
+                return PTR_ERR(tfm);
+        }
+
+        err = test_pcomp(tfm, desc->suite.pcomp.comp.vecs,
+                         desc->suite.pcomp.decomp.vecs,
+                         desc->suite.pcomp.comp.count,
+                         desc->suite.pcomp.decomp.count);
+
+        crypto_free_pcomp(tfm);
+        return err;
+}
+
 static int alg_test_hash(const struct alg_test_desc *desc, const char *driver,
                          u32 type, u32 mask)
 {
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 132953e144d3..c517e43cfc88 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -15,6 +15,8 @@
 #ifndef _CRYPTO_TESTMGR_H
 #define _CRYPTO_TESTMGR_H
 
+#include <crypto/compress.h>
+
 #define MAX_DIGEST_SIZE         64
 #define MAX_TAP                 8
 
@@ -8347,6 +8349,14 @@ struct comp_testvec {
         char output[COMP_BUF_SIZE];
 };
 
+struct pcomp_testvec {
+        void *params;
+        unsigned int paramsize;
+        int inlen, outlen;
+        char input[COMP_BUF_SIZE];
+        char output[COMP_BUF_SIZE];
+};
+
 /*
  * Deflate test vectors (null-terminated strings).
  * Params: winbits=-11, Z_DEFAULT_COMPRESSION, MAX_MEM_LEVEL.