31 #define PHI 0x9e3779b9UL
36 #define loadkeys(x0, x1, x2, x3, i) \  argument
37 	({ x0 = k[i]; x1 = k[i+1]; x2 = k[i+2]; x3 = k[i+3]; })
39 #define storekeys(x0, x1, x2, x3, i) \  argument
40 	({ k[i] = x0; k[i+1] = x1; k[i+2] = x2; k[i+3] = x3; })
42 #define store_and_load_keys(x0, x1, x2, x3, s, l) \  argument
43 	({ storekeys(x0, x1, x2, x3, s); loadkeys(x0, x1, x2, x3, l); })
45 #define K(x0, x1, x2, x3, i) ({				\  argument
46 	x3 ^= k[4*(i)+3];        x2 ^= k[4*(i)+2];	\
47 	x1 ^= k[4*(i)+1];        x0 ^= k[4*(i)+0];	\
50 #define LK(x0, x1, x2, x3, x4, i) ({					   \  argument
53 	x3 ^= x2;		x1 ^= x2;				   \
54 	x1 = rol32(x1, 1);	x3 ^= x4;				   \
55 	x3 = rol32(x3, 7);	x4  = x1;				   \
56 	x0 ^= x1;		x4 <<= 7;		x2 ^= x3;	   \
57 	x0 ^= x3;		x2 ^= x4;		x3 ^= k[4*i+3];	   \
59 	x0 ^= k[4*i+0];		x2 ^= k[4*i+2];				   \
62 #define KL(x0, x1, x2, x3, x4, i) ({					   \  argument
63 	x0 ^= k[4*i+0];		x1 ^= k[4*i+1];		x2 ^= k[4*i+2];	   \
64 	x3 ^= k[4*i+3];		x0 = ror32(x0, 5);	x2 = ror32(x2, 22);\
65 	x4 =  x1;		x2 ^= x3;		x0 ^= x3;	   \
67 	x2 ^= x4;		x3 = ror32(x3, 7);	x4 = x0 << 3;	   \
68 	x1 ^= x0;		x3 ^= x4;		x0 = ror32(x0, 13);\
69 	x1 ^= x2;		x3 ^= x2;		x2 = ror32(x2, 3); \
72 #define S0(x0, x1, x2, x3, x4) ({			\  argument
73 					x4  = x3;	\
74 	x3 |= x0;	x0 ^= x4;	x4 ^= x2;	\
75 	x4 = ~x4;	x3 ^= x1;	x1 &= x0;	\
76 	x1 ^= x4;	x2 ^= x0;	x0 ^= x3;	\
78 	x3 ^= x2;	x1 = ~x1;	x2 ^= x4;	\
82 #define S1(x0, x1, x2, x3, x4) ({			\  argument
84 	x1 ^= x0;	x0 ^= x3;	x3 = ~x3;	\
85 	x4 &= x1;	x0 |= x1;	x3 ^= x2;	\
86 	x0 ^= x3;	x1 ^= x3;	x3 ^= x4;	\
92 #define S2(x0, x1, x2, x3, x4) ({			\  argument
93 					x3 = ~x3;	\
95 	x0 ^= x3;	x3 |= x4;	x2 ^= x1;	\
96 	x3 ^= x1;	x1 &= x0;	x0 ^= x2;	\
97 	x2 &= x3;	x3 |= x1;	x0 = ~x0;	\
98 	x3 ^= x0;	x4 ^= x0;	x0 ^= x2;	\
102 #define S3(x0, x1, x2, x3, x4) ({			\  argument
104 	x1 ^= x3;	x3 |= x0;	x4 &= x0;	\
105 	x0 ^= x2;	x2 ^= x1;	x1 &= x3;	\
106 	x2 ^= x3;	x0 |= x4;	x4 ^= x3;	\
107 	x1 ^= x0;	x0 &= x3;	x3 &= x4;	\
108 	x3 ^= x2;	x4 |= x1;	x2 &= x1;	\
109 	x4 ^= x3;	x0 ^= x3;	x3 ^= x2;	\
112 #define S4(x0, x1, x2, x3, x4) ({			\  argument
113 					x4  = x3;	\
114 	x3 &= x0;	x0 ^= x4;			\
115 	x3 ^= x2;	x2 |= x4;	x0 ^= x1;	\
116 	x4 ^= x3;	x2 |= x0;			\
118 	x1 ^= x4;	x4 &= x2;	x2 ^= x3;	\
119 	x4 ^= x0;	x3 |= x1;	x1 = ~x1;	\
120 	x3 ^= x0;					\
123 #define S5(x0, x1, x2, x3, x4) ({			\  argument
125 	x2 ^= x1;	x3 = ~x3;	x4 ^= x0;	\
126 	x0 ^= x2;	x1 &= x4;	x4 |= x3;	\
127 	x4 ^= x0;	x0 &= x3;	x1 ^= x3;	\
128 	x3 ^= x2;	x0 ^= x1;	x2 &= x4;	\
130 	x3 ^= x2;					\
133 #define S6(x0, x1, x2, x3, x4) ({			\  argument
135 	x3 ^= x0;	x1 ^= x2;	x2 ^= x0;	\
136 	x0 &= x3;	x1 |= x3;	x4 = ~x4;	\
138 	x3 ^= x4;	x4 ^= x0;	x2 &= x0;	\
139 	x4 ^= x1;	x2 ^= x3;	x3 &= x1;	\
140 	x3 ^= x0;	x1 ^= x2;			\
143 #define S7(x0, x1, x2, x3, x4) ({			\  argument
146 	x1 ^= x3;	x3 |= x4;	x4 ^= x2;	\
147 	x2 ^= x3;	x3 ^= x0;	x0 |= x1;	\
148 	x2 &= x0;	x0 ^= x4;	x4 ^= x3;	\
149 	x3 &= x0;	x4 ^= x1;			\
150 	x2 ^= x4;	x3 ^= x1;	x4 |= x0;	\
154 #define SI0(x0, x1, x2, x3, x4) ({			\  argument
155 			x4  = x3;	x1 ^= x0;	\
156 	x3 |= x1;	x4 ^= x1;	x0 = ~x0;	\
157 	x2 ^= x3;	x3 ^= x0;	x0 &= x1;	\
158 	x0 ^= x2;	x2 &= x3;	x3 ^= x4;	\
159 	x2 ^= x3;	x1 ^= x3;	x3 &= x0;	\
160 	x1 ^= x0;	x0 ^= x2;	x4 ^= x3;	\
163 #define SI1(x0, x1, x2, x3, x4) ({			\  argument
164 	x1 ^= x3;	x4  = x0;			\
166 	x4 ^= x3;	x3 &= x1;	x1 ^= x2;	\
167 	x2 &= x4;	x4 ^= x1;	x1 |= x3;	\
168 	x3 ^= x0;	x2 ^= x0;	x0 |= x4;	\
173 #define SI2(x0, x1, x2, x3, x4) ({			\  argument
174 	x2 ^= x1;	x4  = x3;	x3 = ~x3;	\
175 	x3 |= x2;	x2 ^= x4;	x4 ^= x0;	\
176 	x3 ^= x1;	x1 |= x2;	x2 ^= x0;	\
177 	x1 ^= x4;	x4 |= x3;	x2 ^= x3;	\
179 	x2 ^= x3;	x3 ^= x4;	x4 ^= x0;	\
182 #define SI3(x0, x1, x2, x3, x4) ({			\  argument
185 	x1 ^= x0;	x0 |= x4;	x4 ^= x3;	\
186 	x0 ^= x3;	x3 |= x1;	x1 ^= x2;	\
187 	x1 ^= x3;	x0 ^= x2;	x2 ^= x3;	\
188 	x3 &= x1;	x1 ^= x0;	x0 &= x2;	\
189 	x4 ^= x3;	x3 ^= x0;	x0 ^= x1;	\
192 #define SI4(x0, x1, x2, x3, x4) ({			\  argument
193 	x2 ^= x3;	x4  = x0;	x0 &= x1;	\
194 	x0 ^= x2;	x2 |= x3;	x4 = ~x4;	\
197 	x0 ^= x3;	x3 &= x2;			\
198 	x4 ^= x3;	x3 ^= x1;	x1 &= x0;	\
199 	x4 ^= x1;	x0 ^= x3;			\
202 #define SI5(x0, x1, x2, x3, x4) ({			\  argument
204 	x2 ^= x4;	x1 ^= x3;	x3 &= x4;	\
205 	x2 ^= x3;	x3 |= x0;	x0 = ~x0;	\
206 	x3 ^= x2;	x2 |= x0;	x4 ^= x1;	\
208 	x1 ^= x3;	x0 &= x2;	x2 ^= x3;	\
209 	x0 ^= x2;	x2 ^= x4;	x4 ^= x3;	\
212 #define SI6(x0, x1, x2, x3, x4) ({			\  argument
214 	x4  = x0;	x0 &= x3;	x2 ^= x3;	\
215 	x0 ^= x2;	x3 ^= x1;	x2 |= x4;	\
216 	x2 ^= x3;	x3 &= x0;	x0 = ~x0;	\
217 	x3 ^= x1;	x1 &= x2;	x4 ^= x0;	\
218 	x3 ^= x4;	x4 ^= x2;	x0 ^= x1;	\
222 #define SI7(x0, x1, x2, x3, x4) ({			\  argument
223 	x4  = x3;	x3 &= x0;	x0 ^= x2;	\
225 	x1 |= x3;	x4 ^= x0;	x0 &= x2;	\
226 	x0 ^= x1;	x1 &= x2;	x3 ^= x2;	\
227 	x4 ^= x3;	x2 &= x3;	x3 |= x0;	\
228 	x1 ^= x4;	x3 ^= x4;	x4 &= x0;	\
247 	S1(r0, r2, r4, r1, r3); store_and_load_keys(r3, r4, r1, r0, 4, 0);  in __serpent_setkey_sbox()
248 	S2(r3, r4, r1, r0, r2); store_and_load_keys(r2, r4, r3, r0, 0, -4);  in __serpent_setkey_sbox()
274 	S2(r0, r4, r2, r1, r3); store_and_load_keys(r3, r4, r0, r1, 4, 0);  in __serpent_setkey_sbox()
275 	S3(r3, r4, r0, r1, r2); storekeys(r1, r2, r4, r3, 0);  in __serpent_setkey_sbox()
288 	for (i = 0; i < keylen; ++i)  in __serpent_setkey()
293 		k8[i++] = 0;  in __serpent_setkey()
303 	keyiter(le32_to_cpu(k[0]), r0, r4, r2, 0, 0);  in __serpent_setkey()
312 	keyiter(k[0], r3, r2, r0, 8, 8);  in __serpent_setkey()
357 	keyiter(k[-8], r0, r4, r2, 50, 0);  in __serpent_setkey()
365 	keyiter(k[0], r3, r2, r0, 58, 8);  in __serpent_setkey()
410 	keyiter(k[-8], r0, r4, r2, 100, 0);  in __serpent_setkey()
418 	keyiter(k[0], r3, r2, r0, 108, 8);  in __serpent_setkey()
446 	return 0;  in __serpent_setkey()
468 	r0 = le32_to_cpu(s[0]);  in __serpent_encrypt()
473 					K(r0, r1, r2, r3, 0);  in __serpent_encrypt()
507 	d[0] = cpu_to_le32(r0);  in __serpent_encrypt()
528 	r0 = le32_to_cpu(s[0]);  in __serpent_decrypt()
565 	SI0(r4, r1, r2, r0, r3);	K(r2, r3, r1, r4, 0);  in __serpent_decrypt()
567 	d[0] = cpu_to_le32(r2);  in __serpent_decrypt()
587 	for (i = 0; i < keylen; ++i)  in tnepres_setkey()
600 	rs[0] = swab32(s[3]);  in tnepres_encrypt()
603 	rs[3] = swab32(s[0]);  in tnepres_encrypt()
607 	d[0] = swab32(rd[3]);  in tnepres_encrypt()
610 	d[3] = swab32(rd[0]);  in tnepres_encrypt()
620 	rs[0] = swab32(s[3]);  in tnepres_decrypt()
623 	rs[3] = swab32(s[0]);  in tnepres_decrypt()
627 	d[0] = swab32(rd[3]);  in tnepres_decrypt()
630 	d[3] = swab32(rd[0]);  in tnepres_decrypt()