43     memset((A) + DTLS_CCM_BLOCKSIZE - (L), 0, (L));			\
45     for (i = DTLS_CCM_BLOCKSIZE - 1; (C) && (i > (L)); --i, (C) >>= 8)	\
54        unsigned char nonce[DTLS_CCM_BLOCKSIZE],  in block0()  argument
61   memcpy(result + 1, nonce, DTLS_CCM_BLOCKSIZE - L);  in block0()
85 	      unsigned char B[DTLS_CCM_BLOCKSIZE],   in add_auth_data()  argument
86 	      unsigned char X[DTLS_CCM_BLOCKSIZE]) {  in add_auth_data()  argument
91   memset(B, 0, DTLS_CCM_BLOCKSIZE);  in add_auth_data()
122     i = min(DTLS_CCM_BLOCKSIZE - j, la);  in add_auth_data()
127     memxor(B, X, DTLS_CCM_BLOCKSIZE);  in add_auth_data()
131   while (la > DTLS_CCM_BLOCKSIZE) {  in add_auth_data()
132     for (i = 0; i < DTLS_CCM_BLOCKSIZE; ++i)  in add_auth_data()
134     la -= DTLS_CCM_BLOCKSIZE;  in add_auth_data()
140     memset(B, 0, DTLS_CCM_BLOCKSIZE);  in add_auth_data()
142     memxor(B, X, DTLS_CCM_BLOCKSIZE);  in add_auth_data()
151 	unsigned char A[DTLS_CCM_BLOCKSIZE],  in encrypt()  argument
152 	unsigned char S[DTLS_CCM_BLOCKSIZE]) {  in encrypt()  argument
164     unsigned char B[DTLS_CCM_BLOCKSIZE],  in mac()  argument
165     unsigned char X[DTLS_CCM_BLOCKSIZE]) {  in mac()  argument
177 			 unsigned char nonce[DTLS_CCM_BLOCKSIZE],   in dtls_ccm_encrypt_message()  argument
184   unsigned char A[DTLS_CCM_BLOCKSIZE]; /* A_i blocks for encryption input */  in dtls_ccm_encrypt_message()
185   unsigned char B[DTLS_CCM_BLOCKSIZE]; /* B_i blocks for CBC-MAC input */  in dtls_ccm_encrypt_message()
186   unsigned char S[DTLS_CCM_BLOCKSIZE]; /* S_i = encrypted A_i blocks */  in dtls_ccm_encrypt_message()
187   unsigned char X[DTLS_CCM_BLOCKSIZE]; /* X_i = encrypted B_i blocks */  in dtls_ccm_encrypt_message()
198   memcpy(A + 1, nonce, DTLS_CCM_BLOCKSIZE - L);  in dtls_ccm_encrypt_message()
200   while (lm >= DTLS_CCM_BLOCKSIZE) {  in dtls_ccm_encrypt_message()
202     mac(ctx, msg, DTLS_CCM_BLOCKSIZE, B, X);  in dtls_ccm_encrypt_message()
205     encrypt(ctx, L, counter, msg, DTLS_CCM_BLOCKSIZE, A, S);  in dtls_ccm_encrypt_message()
208     lm -= DTLS_CCM_BLOCKSIZE;  in dtls_ccm_encrypt_message()
209     msg += DTLS_CCM_BLOCKSIZE;  in dtls_ccm_encrypt_message()
219     memcpy(B + lm, X + lm, DTLS_CCM_BLOCKSIZE - lm);  in dtls_ccm_encrypt_message()
241 			 unsigned char nonce[DTLS_CCM_BLOCKSIZE],   in dtls_ccm_decrypt_message()  argument
249   unsigned char A[DTLS_CCM_BLOCKSIZE]; /* A_i blocks for encryption input */  in dtls_ccm_decrypt_message()
250   unsigned char B[DTLS_CCM_BLOCKSIZE]; /* B_i blocks for CBC-MAC input */  in dtls_ccm_decrypt_message()
251   unsigned char S[DTLS_CCM_BLOCKSIZE]; /* S_i = encrypted A_i blocks */  in dtls_ccm_decrypt_message()
252   unsigned char X[DTLS_CCM_BLOCKSIZE]; /* X_i = encrypted B_i blocks */  in dtls_ccm_decrypt_message()
268   memcpy(A + 1, nonce, DTLS_CCM_BLOCKSIZE - L);  in dtls_ccm_decrypt_message()
270   while (lm >= DTLS_CCM_BLOCKSIZE) {  in dtls_ccm_decrypt_message()
272     encrypt(ctx, L, counter, msg, DTLS_CCM_BLOCKSIZE, A, S);  in dtls_ccm_decrypt_message()
275     mac(ctx, msg, DTLS_CCM_BLOCKSIZE, B, X);  in dtls_ccm_decrypt_message()
278     lm -= DTLS_CCM_BLOCKSIZE;  in dtls_ccm_decrypt_message()
279     msg += DTLS_CCM_BLOCKSIZE;  in dtls_ccm_decrypt_message()
292     memcpy(B + lm, X + lm, DTLS_CCM_BLOCKSIZE - lm);  in dtls_ccm_decrypt_message()