1 /* 2 * CAAM Error Reporting 3 * 4 * Copyright 2009-2011 Freescale Semiconductor, Inc. 5 */ 6 7 #include "compat.h" 8 #include "regs.h" 9 #include "intern.h" 10 #include "desc.h" 11 #include "jr.h" 12 #include "error.h" 13 14 #define SPRINTFCAT(str, format, param, max_alloc) \ 15 { \ 16 char *tmp; \ 17 \ 18 tmp = kmalloc(sizeof(format) + max_alloc, GFP_ATOMIC); \ 19 if (likely(tmp)) { \ 20 sprintf(tmp, format, param); \ 21 strcat(str, tmp); \ 22 kfree(tmp); \ 23 } else { \ 24 strcat(str, "kmalloc failure in SPRINTFCAT"); \ 25 } \ 26 } 27 28 static void report_jump_idx(u32 status, char *outstr) 29 { 30 u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >> 31 JRSTA_DECOERR_INDEX_SHIFT; 32 33 if (status & JRSTA_DECOERR_JUMP) 34 strcat(outstr, "jump tgt desc idx "); 35 else 36 strcat(outstr, "desc idx "); 37 38 SPRINTFCAT(outstr, "%d: ", idx, sizeof("255")); 39 } 40 41 static void report_ccb_status(u32 status, char *outstr) 42 { 43 static const char * const cha_id_list[] = { 44 "", 45 "AES", 46 "DES", 47 "ARC4", 48 "MDHA", 49 "RNG", 50 "SNOW f8", 51 "Kasumi f8/9", 52 "PKHA", 53 "CRCA", 54 "SNOW f9", 55 "ZUCE", 56 "ZUCA", 57 }; 58 static const char * const err_id_list[] = { 59 "No error.", 60 "Mode error.", 61 "Data size error.", 62 "Key size error.", 63 "PKHA A memory size error.", 64 "PKHA B memory size error.", 65 "Data arrived out of sequence error.", 66 "PKHA divide-by-zero error.", 67 "PKHA modulus even error.", 68 "DES key parity error.", 69 "ICV check failed.", 70 "Hardware error.", 71 "Unsupported CCM AAD size.", 72 "Class 1 CHA is not reset", 73 "Invalid CHA combination was selected", 74 "Invalid CHA selected.", 75 }; 76 static const char * const rng_err_id_list[] = { 77 "", 78 "", 79 "", 80 "Instantiate", 81 "Not instantiated", 82 "Test instantiate", 83 "Prediction resistance", 84 "Prediction resistance and test request", 85 "Uninstantiate", 86 "Secure key generation", 87 }; 88 u8 cha_id = (status & JRSTA_CCBERR_CHAID_MASK) >> 89 JRSTA_CCBERR_CHAID_SHIFT; 90 u8 err_id = status & JRSTA_CCBERR_ERRID_MASK; 91 92 report_jump_idx(status, outstr); 93 94 if (cha_id < ARRAY_SIZE(cha_id_list)) { 95 SPRINTFCAT(outstr, "%s: ", cha_id_list[cha_id], 96 strlen(cha_id_list[cha_id])); 97 } else { 98 SPRINTFCAT(outstr, "unidentified cha_id value 0x%02x: ", 99 cha_id, sizeof("ff")); 100 } 101 102 if ((cha_id << JRSTA_CCBERR_CHAID_SHIFT) == JRSTA_CCBERR_CHAID_RNG && 103 err_id < ARRAY_SIZE(rng_err_id_list) && 104 strlen(rng_err_id_list[err_id])) { 105 /* RNG-only error */ 106 SPRINTFCAT(outstr, "%s", rng_err_id_list[err_id], 107 strlen(rng_err_id_list[err_id])); 108 } else if (err_id < ARRAY_SIZE(err_id_list)) { 109 SPRINTFCAT(outstr, "%s", err_id_list[err_id], 110 strlen(err_id_list[err_id])); 111 } else { 112 SPRINTFCAT(outstr, "unidentified err_id value 0x%02x", 113 err_id, sizeof("ff")); 114 } 115 } 116 117 static void report_jump_status(u32 status, char *outstr) 118 { 119 SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__)); 120 } 121 122 static void report_deco_status(u32 status, char *outstr) 123 { 124 static const struct { 125 u8 value; 126 char *error_text; 127 } desc_error_list[] = { 128 { 0x00, "No error." }, 129 { 0x01, "SGT Length Error. The descriptor is trying to read " 130 "more data than is contained in the SGT table." }, 131 { 0x02, "SGT Null Entry Error." }, 132 { 0x03, "Job Ring Control Error. There is a bad value in the " 133 "Job Ring Control register." }, 134 { 0x04, "Invalid Descriptor Command. The Descriptor Command " 135 "field is invalid." }, 136 { 0x05, "Reserved." }, 137 { 0x06, "Invalid KEY Command" }, 138 { 0x07, "Invalid LOAD Command" }, 139 { 0x08, "Invalid STORE Command" }, 140 { 0x09, "Invalid OPERATION Command" }, 141 { 0x0A, "Invalid FIFO LOAD Command" }, 142 { 0x0B, "Invalid FIFO STORE Command" }, 143 { 0x0C, "Invalid MOVE/MOVE_LEN Command" }, 144 { 0x0D, "Invalid JUMP Command. A nonlocal JUMP Command is " 145 "invalid because the target is not a Job Header " 146 "Command, or the jump is from a Trusted Descriptor to " 147 "a Job Descriptor, or because the target Descriptor " 148 "contains a Shared Descriptor." }, 149 { 0x0E, "Invalid MATH Command" }, 150 { 0x0F, "Invalid SIGNATURE Command" }, 151 { 0x10, "Invalid Sequence Command. A SEQ IN PTR OR SEQ OUT PTR " 152 "Command is invalid or a SEQ KEY, SEQ LOAD, SEQ FIFO " 153 "LOAD, or SEQ FIFO STORE decremented the input or " 154 "output sequence length below 0. This error may result " 155 "if a built-in PROTOCOL Command has encountered a " 156 "malformed PDU." }, 157 { 0x11, "Skip data type invalid. The type must be 0xE or 0xF."}, 158 { 0x12, "Shared Descriptor Header Error" }, 159 { 0x13, "Header Error. Invalid length or parity, or certain " 160 "other problems." }, 161 { 0x14, "Burster Error. Burster has gotten to an illegal " 162 "state" }, 163 { 0x15, "Context Register Length Error. The descriptor is " 164 "trying to read or write past the end of the Context " 165 "Register. A SEQ LOAD or SEQ STORE with the VLF bit " 166 "set was executed with too large a length in the " 167 "variable length register (VSOL for SEQ STORE or VSIL " 168 "for SEQ LOAD)." }, 169 { 0x16, "DMA Error" }, 170 { 0x17, "Reserved." }, 171 { 0x1A, "Job failed due to JR reset" }, 172 { 0x1B, "Job failed due to Fail Mode" }, 173 { 0x1C, "DECO Watchdog timer timeout error" }, 174 { 0x1D, "DECO tried to copy a key from another DECO but the " 175 "other DECO's Key Registers were locked" }, 176 { 0x1E, "DECO attempted to copy data from a DECO that had an " 177 "unmasked Descriptor error" }, 178 { 0x1F, "LIODN error. DECO was trying to share from itself or " 179 "from another DECO but the two Non-SEQ LIODN values " 180 "didn't match or the 'shared from' DECO's Descriptor " 181 "required that the SEQ LIODNs be the same and they " 182 "aren't." }, 183 { 0x20, "DECO has completed a reset initiated via the DRR " 184 "register" }, 185 { 0x21, "Nonce error. When using EKT (CCM) key encryption " 186 "option in the FIFO STORE Command, the Nonce counter " 187 "reached its maximum value and this encryption mode " 188 "can no longer be used." }, 189 { 0x22, "Meta data is too large (> 511 bytes) for TLS decap " 190 "(input frame; block ciphers) and IPsec decap (output " 191 "frame, when doing the next header byte update) and " 192 "DCRC (output frame)." }, 193 { 0x23, "Read Input Frame error" }, 194 { 0x24, "JDKEK, TDKEK or TDSK not loaded error" }, 195 { 0x80, "DNR (do not run) error" }, 196 { 0x81, "undefined protocol command" }, 197 { 0x82, "invalid setting in PDB" }, 198 { 0x83, "Anti-replay LATE error" }, 199 { 0x84, "Anti-replay REPLAY error" }, 200 { 0x85, "Sequence number overflow" }, 201 { 0x86, "Sigver invalid signature" }, 202 { 0x87, "DSA Sign Illegal test descriptor" }, 203 { 0x88, "Protocol Format Error - A protocol has seen an error " 204 "in the format of data received. When running RSA, " 205 "this means that formatting with random padding was " 206 "used, and did not follow the form: 0x00, 0x02, 8-to-N " 207 "bytes of non-zero pad, 0x00, F data." }, 208 { 0x89, "Protocol Size Error - A protocol has seen an error in " 209 "size. When running RSA, pdb size N < (size of F) when " 210 "no formatting is used; or pdb size N < (F + 11) when " 211 "formatting is used." }, 212 { 0xC1, "Blob Command error: Undefined mode" }, 213 { 0xC2, "Blob Command error: Secure Memory Blob mode error" }, 214 { 0xC4, "Blob Command error: Black Blob key or input size " 215 "error" }, 216 { 0xC5, "Blob Command error: Invalid key destination" }, 217 { 0xC8, "Blob Command error: Trusted/Secure mode error" }, 218 { 0xF0, "IPsec TTL or hop limit field either came in as 0, " 219 "or was decremented to 0" }, 220 { 0xF1, "3GPP HFN matches or exceeds the Threshold" }, 221 }; 222 u8 desc_error = status & JRSTA_DECOERR_ERROR_MASK; 223 int i; 224 225 report_jump_idx(status, outstr); 226 227 for (i = 0; i < ARRAY_SIZE(desc_error_list); i++) 228 if (desc_error_list[i].value == desc_error) 229 break; 230 231 if (i != ARRAY_SIZE(desc_error_list) && desc_error_list[i].error_text) { 232 SPRINTFCAT(outstr, "%s", desc_error_list[i].error_text, 233 strlen(desc_error_list[i].error_text)); 234 } else { 235 SPRINTFCAT(outstr, "unidentified error value 0x%02x", 236 desc_error, sizeof("ff")); 237 } 238 } 239 240 static void report_jr_status(u32 status, char *outstr) 241 { 242 SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__)); 243 } 244 245 static void report_cond_code_status(u32 status, char *outstr) 246 { 247 SPRINTFCAT(outstr, "%s() not implemented", __func__, sizeof(__func__)); 248 } 249 250 char *caam_jr_strstatus(char *outstr, u32 status) 251 { 252 static const struct stat_src { 253 void (*report_ssed)(u32 status, char *outstr); 254 char *error; 255 } status_src[] = { 256 { NULL, "No error" }, 257 { NULL, NULL }, 258 { report_ccb_status, "CCB" }, 259 { report_jump_status, "Jump" }, 260 { report_deco_status, "DECO" }, 261 { NULL, NULL }, 262 { report_jr_status, "Job Ring" }, 263 { report_cond_code_status, "Condition Code" }, 264 }; 265 u32 ssrc = status >> JRSTA_SSRC_SHIFT; 266 267 sprintf(outstr, "%s: ", status_src[ssrc].error); 268 269 if (status_src[ssrc].report_ssed) 270 status_src[ssrc].report_ssed(status, outstr); 271 272 return outstr; 273 } 274 EXPORT_SYMBOL(caam_jr_strstatus); 275