Documentation/target/tcm_mod_builder.py

   1 #!/usr/bin/python
   2 # The TCM v4 multi-protocol fabric module generation script for drivers/target/$NEW_MOD
   3 #
   4 # Copyright (c) 2010 Rising Tide Systems
   5 # Copyright (c) 2010 Linux-iSCSI.org
   6 #
   7 # Author: nab@kernel.org
   8 #
   9 import os, sys
  10 import subprocess as sub
  11 import string
  12 import re
  13 import optparse
  14
  15 tcm_dir = ""
  16
  17 fabric_ops = []
  18 fabric_mod_dir = ""
  19 fabric_mod_port = ""
  20 fabric_mod_init_port = ""
  21
  22 def tcm_mod_err(msg):
  23         print msg
  24         sys.exit(1)
  25
  26 def tcm_mod_create_module_subdir(fabric_mod_dir_var):
  27
  28         if os.path.isdir(fabric_mod_dir_var) == True:
  29                 return 1
  30
  31         print "Creating fabric_mod_dir: " + fabric_mod_dir_var
  32         ret = os.mkdir(fabric_mod_dir_var)
  33         if ret:
  34                 tcm_mod_err("Unable to mkdir " + fabric_mod_dir_var)
  35
  36         return
  37
  38 def tcm_mod_build_FC_include(fabric_mod_dir_var, fabric_mod_name):
  39         global fabric_mod_port
  40         global fabric_mod_init_port
  41         buf = ""
  42
  43         f = fabric_mod_dir_var + "/" + fabric_mod_name + "_base.h"
  44         print "Writing file: " + f
  45
  46         p = open(f, 'w');
  47         if not p:
  48                 tcm_mod_err("Unable to open file: " + f)
  49
  50         buf = "#define " + fabric_mod_name.upper() + "_VERSION  \"v0.1\"\n"
  51         buf += "#define " + fabric_mod_name.upper() + "_NAMELEN 32\n"
  52         buf += "\n"
  53         buf += "struct " + fabric_mod_name + "_nacl {\n"
  54         buf += "        /* Binary World Wide unique Port Name for FC Initiator Nport */\n"
  55         buf += "        u64 nport_wwpn;\n"
  56         buf += "        /* ASCII formatted WWPN for FC Initiator Nport */\n"
  57         buf += "        char nport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
  58         buf += "        /* Returned by " + fabric_mod_name + "_make_nodeacl() */\n"
  59         buf += "        struct se_node_acl se_node_acl;\n"
  60         buf += "};\n"
  61         buf += "\n"
  62         buf += "struct " + fabric_mod_name + "_tpg {\n"
  63         buf += "        /* FC lport target portal group tag for TCM */\n"
  64         buf += "        u16 lport_tpgt;\n"
  65         buf += "        /* Pointer back to " + fabric_mod_name + "_lport */\n"
  66         buf += "        struct " + fabric_mod_name + "_lport *lport;\n"
  67         buf += "        /* Returned by " + fabric_mod_name + "_make_tpg() */\n"
  68         buf += "        struct se_portal_group se_tpg;\n"
  69         buf += "};\n"
  70         buf += "\n"
  71         buf += "struct " + fabric_mod_name + "_lport {\n"
  72         buf += "        /* SCSI protocol the lport is providing */\n"
  73         buf += "        u8 lport_proto_id;\n"
  74         buf += "        /* Binary World Wide unique Port Name for FC Target Lport */\n"
  75         buf += "        u64 lport_wwpn;\n"
  76         buf += "        /* ASCII formatted WWPN for FC Target Lport */\n"
  77         buf += "        char lport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
  78         buf += "        /* Returned by " + fabric_mod_name + "_make_lport() */\n"
  79         buf += "        struct se_wwn lport_wwn;\n"
  80         buf += "};\n"
  81
  82         ret = p.write(buf)
  83         if ret:
  84                 tcm_mod_err("Unable to write f: " + f)
  85
  86         p.close()
  87
  88         fabric_mod_port = "lport"
  89         fabric_mod_init_port = "nport"
  90
  91         return
  92
  93 def tcm_mod_build_SAS_include(fabric_mod_dir_var, fabric_mod_name):
  94         global fabric_mod_port
  95         global fabric_mod_init_port
  96         buf = ""
  97
  98         f = fabric_mod_dir_var + "/" + fabric_mod_name + "_base.h"
  99         print "Writing file: " + f
 100
 101         p = open(f, 'w');
 102         if not p:
 103                 tcm_mod_err("Unable to open file: " + f)
 104
 105         buf = "#define " + fabric_mod_name.upper() + "_VERSION  \"v0.1\"\n"
 106         buf += "#define " + fabric_mod_name.upper() + "_NAMELEN 32\n"
 107         buf += "\n"
 108         buf += "struct " + fabric_mod_name + "_nacl {\n"
 109         buf += "        /* Binary World Wide unique Port Name for SAS Initiator port */\n"
 110         buf += "        u64 iport_wwpn;\n"
 111         buf += "        /* ASCII formatted WWPN for Sas Initiator port */\n"
 112         buf += "        char iport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
 113         buf += "        /* Returned by " + fabric_mod_name + "_make_nodeacl() */\n"
 114         buf += "        struct se_node_acl se_node_acl;\n"
 115         buf += "};\n\n"
 116         buf += "struct " + fabric_mod_name + "_tpg {\n"
 117         buf += "        /* SAS port target portal group tag for TCM */\n"
 118         buf += "        u16 tport_tpgt;\n"
 119         buf += "        /* Pointer back to " + fabric_mod_name + "_tport */\n"
 120         buf += "        struct " + fabric_mod_name + "_tport *tport;\n"
 121         buf += "        /* Returned by " + fabric_mod_name + "_make_tpg() */\n"
 122         buf += "        struct se_portal_group se_tpg;\n"
 123         buf += "};\n\n"
 124         buf += "struct " + fabric_mod_name + "_tport {\n"
 125         buf += "        /* SCSI protocol the tport is providing */\n"
 126         buf += "        u8 tport_proto_id;\n"
 127         buf += "        /* Binary World Wide unique Port Name for SAS Target port */\n"
 128         buf += "        u64 tport_wwpn;\n"
 129         buf += "        /* ASCII formatted WWPN for SAS Target port */\n"
 130         buf += "        char tport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
 131         buf += "        /* Returned by " + fabric_mod_name + "_make_tport() */\n"
 132         buf += "        struct se_wwn tport_wwn;\n"
 133         buf += "};\n"
 134
 135         ret = p.write(buf)
 136         if ret:
 137                 tcm_mod_err("Unable to write f: " + f)
 138
 139         p.close()
 140
 141         fabric_mod_port = "tport"
 142         fabric_mod_init_port = "iport"
 143
 144         return
 145
 146 def tcm_mod_build_iSCSI_include(fabric_mod_dir_var, fabric_mod_name):
 147         global fabric_mod_port
 148         global fabric_mod_init_port
 149         buf = ""
 150
 151         f = fabric_mod_dir_var + "/" + fabric_mod_name + "_base.h"
 152         print "Writing file: " + f
 153
 154         p = open(f, 'w');
 155         if not p:
 156                 tcm_mod_err("Unable to open file: " + f)
 157
 158         buf = "#define " + fabric_mod_name.upper() + "_VERSION  \"v0.1\"\n"
 159         buf += "#define " + fabric_mod_name.upper() + "_NAMELEN 32\n"
 160         buf += "\n"
 161         buf += "struct " + fabric_mod_name + "_nacl {\n"
 162         buf += "        /* ASCII formatted InitiatorName */\n"
 163         buf += "        char iport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
 164         buf += "        /* Returned by " + fabric_mod_name + "_make_nodeacl() */\n"
 165         buf += "        struct se_node_acl se_node_acl;\n"
 166         buf += "};\n\n"
 167         buf += "struct " + fabric_mod_name + "_tpg {\n"
 168         buf += "        /* iSCSI target portal group tag for TCM */\n"
 169         buf += "        u16 tport_tpgt;\n"
 170         buf += "        /* Pointer back to " + fabric_mod_name + "_tport */\n"
 171         buf += "        struct " + fabric_mod_name + "_tport *tport;\n"
 172         buf += "        /* Returned by " + fabric_mod_name + "_make_tpg() */\n"
 173         buf += "        struct se_portal_group se_tpg;\n"
 174         buf += "};\n\n"
 175         buf += "struct " + fabric_mod_name + "_tport {\n"
 176         buf += "        /* SCSI protocol the tport is providing */\n"
 177         buf += "        u8 tport_proto_id;\n"
 178         buf += "        /* ASCII formatted TargetName for IQN */\n"
 179         buf += "        char tport_name[" + fabric_mod_name.upper() + "_NAMELEN];\n"
 180         buf += "        /* Returned by " + fabric_mod_name + "_make_tport() */\n"
 181         buf += "        struct se_wwn tport_wwn;\n"
 182         buf += "};\n"
 183
 184         ret = p.write(buf)
 185         if ret:
 186                 tcm_mod_err("Unable to write f: " + f)
 187
 188         p.close()
 189
 190         fabric_mod_port = "tport"
 191         fabric_mod_init_port = "iport"
 192
 193         return
 194
 195 def tcm_mod_build_base_includes(proto_ident, fabric_mod_dir_val, fabric_mod_name):
 196
 197         if proto_ident == "FC":
 198                 tcm_mod_build_FC_include(fabric_mod_dir_val, fabric_mod_name)
 199         elif proto_ident == "SAS":
 200                 tcm_mod_build_SAS_include(fabric_mod_dir_val, fabric_mod_name)
 201         elif proto_ident == "iSCSI":
 202                 tcm_mod_build_iSCSI_include(fabric_mod_dir_val, fabric_mod_name)
 203         else:
 204                 print "Unsupported proto_ident: " + proto_ident
 205                 sys.exit(1)
 206
 207         return
 208
 209 def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name):
 210         buf = ""
 211
 212         f = fabric_mod_dir_var + "/" + fabric_mod_name + "_configfs.c"
 213         print "Writing file: " + f
 214
 215         p = open(f, 'w');
 216         if not p:
 217                 tcm_mod_err("Unable to open file: " + f)
 218
 219         buf = "#include <linux/module.h>\n"
 220         buf += "#include <linux/moduleparam.h>\n"
 221         buf += "#include <linux/version.h>\n"
 222         buf += "#include <generated/utsrelease.h>\n"
 223         buf += "#include <linux/utsname.h>\n"
 224         buf += "#include <linux/init.h>\n"
 225         buf += "#include <linux/slab.h>\n"
 226         buf += "#include <linux/kthread.h>\n"
 227         buf += "#include <linux/types.h>\n"
 228         buf += "#include <linux/string.h>\n"
 229         buf += "#include <linux/configfs.h>\n"
 230         buf += "#include <linux/ctype.h>\n"
 231         buf += "#include <asm/unaligned.h>\n\n"
 232         buf += "#include <target/target_core_base.h>\n"
 233         buf += "#include <target/target_core_fabric.h>\n"
 234         buf += "#include <target/target_core_fabric_configfs.h>\n"
 235         buf += "#include <target/target_core_configfs.h>\n"
 236         buf += "#include <target/configfs_macros.h>\n\n"
 237         buf += "#include \"" + fabric_mod_name + "_base.h\"\n"
 238         buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n"
 239
 240         buf += "/* Local pointer to allocated TCM configfs fabric module */\n"
 241         buf += "struct target_fabric_configfs *" + fabric_mod_name + "_fabric_configfs;\n\n"
 242
 243         buf += "static struct se_node_acl *" + fabric_mod_name + "_make_nodeacl(\n"
 244         buf += "        struct se_portal_group *se_tpg,\n"
 245         buf += "        struct config_group *group,\n"
 246         buf += "        const char *name)\n"
 247         buf += "{\n"
 248         buf += "        struct se_node_acl *se_nacl, *se_nacl_new;\n"
 249         buf += "        struct " + fabric_mod_name + "_nacl *nacl;\n"
 250
 251         if proto_ident == "FC" or proto_ident == "SAS":
 252                 buf += "        u64 wwpn = 0;\n"
 253
 254         buf += "        u32 nexus_depth;\n\n"
 255         buf += "        /* " + fabric_mod_name + "_parse_wwn(name, &wwpn, 1) < 0)\n"
 256         buf += "                return ERR_PTR(-EINVAL); */\n"
 257         buf += "        se_nacl_new = " + fabric_mod_name + "_alloc_fabric_acl(se_tpg);\n"
 258         buf += "        if (!se_nacl_new)\n"
 259         buf += "                return ERR_PTR(-ENOMEM);\n"
 260         buf += "//#warning FIXME: Hardcoded nexus depth in " + fabric_mod_name + "_make_nodeacl()\n"
 261         buf += "        nexus_depth = 1;\n"
 262         buf += "        /*\n"
 263         buf += "         * se_nacl_new may be released by core_tpg_add_initiator_node_acl()\n"
 264         buf += "         * when converting a NodeACL from demo mode -> explict\n"
 265         buf += "         */\n"
 266         buf += "        se_nacl = core_tpg_add_initiator_node_acl(se_tpg, se_nacl_new,\n"
 267         buf += "                                name, nexus_depth);\n"
 268         buf += "        if (IS_ERR(se_nacl)) {\n"
 269         buf += "                " + fabric_mod_name + "_release_fabric_acl(se_tpg, se_nacl_new);\n"
 270         buf += "                return se_nacl;\n"
 271         buf += "        }\n"
 272         buf += "        /*\n"
 273         buf += "         * Locate our struct " + fabric_mod_name + "_nacl and set the FC Nport WWPN\n"
 274         buf += "         */\n"
 275         buf += "        nacl = container_of(se_nacl, struct " + fabric_mod_name + "_nacl, se_node_acl);\n"
 276
 277         if proto_ident == "FC" or proto_ident == "SAS":
 278                 buf += "        nacl->" + fabric_mod_init_port + "_wwpn = wwpn;\n"
 279
 280         buf += "        /* " + fabric_mod_name + "_format_wwn(&nacl->" + fabric_mod_init_port + "_name[0], " + fabric_mod_name.upper() + "_NAMELEN, wwpn); */\n\n"
 281         buf += "        return se_nacl;\n"
 282         buf += "}\n\n"
 283         buf += "static void " + fabric_mod_name + "_drop_nodeacl(struct se_node_acl *se_acl)\n"
 284         buf += "{\n"
 285         buf += "        struct " + fabric_mod_name + "_nacl *nacl = container_of(se_acl,\n"
 286         buf += "                                struct " + fabric_mod_name + "_nacl, se_node_acl);\n"
 287         buf += "        core_tpg_del_initiator_node_acl(se_acl->se_tpg, se_acl, 1);\n"
 288         buf += "        kfree(nacl);\n"
 289         buf += "}\n\n"
 290
 291         buf += "static struct se_portal_group *" + fabric_mod_name + "_make_tpg(\n"
 292         buf += "        struct se_wwn *wwn,\n"
 293         buf += "        struct config_group *group,\n"
 294         buf += "        const char *name)\n"
 295         buf += "{\n"
 296         buf += "        struct " + fabric_mod_name + "_" + fabric_mod_port + "*" + fabric_mod_port + " = container_of(wwn,\n"
 297         buf += "                        struct " + fabric_mod_name + "_" + fabric_mod_port + ", " + fabric_mod_port + "_wwn);\n\n"
 298         buf += "        struct " + fabric_mod_name + "_tpg *tpg;\n"
 299         buf += "        unsigned long tpgt;\n"
 300         buf += "        int ret;\n\n"
 301         buf += "        if (strstr(name, \"tpgt_\") != name)\n"
 302         buf += "                return ERR_PTR(-EINVAL);\n"
 303         buf += "        if (kstrtoul(name + 5, 10, &tpgt) || tpgt > UINT_MAX)\n"
 304         buf += "                return ERR_PTR(-EINVAL);\n\n"
 305         buf += "        tpg = kzalloc(sizeof(struct " + fabric_mod_name + "_tpg), GFP_KERNEL);\n"
 306         buf += "        if (!tpg) {\n"
 307         buf += "                printk(KERN_ERR \"Unable to allocate struct " + fabric_mod_name + "_tpg\");\n"
 308         buf += "                return ERR_PTR(-ENOMEM);\n"
 309         buf += "        }\n"
 310         buf += "        tpg->" + fabric_mod_port + " = " + fabric_mod_port + ";\n"
 311         buf += "        tpg->" + fabric_mod_port + "_tpgt = tpgt;\n\n"
 312         buf += "        ret = core_tpg_register(&" + fabric_mod_name + "_fabric_configfs->tf_ops, wwn,\n"
 313         buf += "                                &tpg->se_tpg, (void *)tpg,\n"
 314         buf += "                                TRANSPORT_TPG_TYPE_NORMAL);\n"
 315         buf += "        if (ret < 0) {\n"
 316         buf += "                kfree(tpg);\n"
 317         buf += "                return NULL;\n"
 318         buf += "        }\n"
 319         buf += "        return &tpg->se_tpg;\n"
 320         buf += "}\n\n"
 321         buf += "static void " + fabric_mod_name + "_drop_tpg(struct se_portal_group *se_tpg)\n"
 322         buf += "{\n"
 323         buf += "        struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
 324         buf += "                                struct " + fabric_mod_name + "_tpg, se_tpg);\n\n"
 325         buf += "        core_tpg_deregister(se_tpg);\n"
 326         buf += "        kfree(tpg);\n"
 327         buf += "}\n\n"
 328
 329         buf += "static struct se_wwn *" + fabric_mod_name + "_make_" + fabric_mod_port + "(\n"
 330         buf += "        struct target_fabric_configfs *tf,\n"
 331         buf += "        struct config_group *group,\n"
 332         buf += "        const char *name)\n"
 333         buf += "{\n"
 334         buf += "        struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + ";\n"
 335
 336         if proto_ident == "FC" or proto_ident == "SAS":
 337                 buf += "        u64 wwpn = 0;\n\n"
 338
 339         buf += "        /* if (" + fabric_mod_name + "_parse_wwn(name, &wwpn, 1) < 0)\n"
 340         buf += "                return ERR_PTR(-EINVAL); */\n\n"
 341         buf += "        " + fabric_mod_port + " = kzalloc(sizeof(struct " + fabric_mod_name + "_" + fabric_mod_port + "), GFP_KERNEL);\n"
 342         buf += "        if (!" + fabric_mod_port + ") {\n"
 343         buf += "                printk(KERN_ERR \"Unable to allocate struct " + fabric_mod_name + "_" + fabric_mod_port + "\");\n"
 344         buf += "                return ERR_PTR(-ENOMEM);\n"
 345         buf += "        }\n"
 346
 347         if proto_ident == "FC" or proto_ident == "SAS":
 348                 buf += "        " + fabric_mod_port + "->" + fabric_mod_port + "_wwpn = wwpn;\n"
 349
 350         buf += "        /* " + fabric_mod_name + "_format_wwn(&" + fabric_mod_port + "->" + fabric_mod_port + "_name[0], " + fabric_mod_name.upper() + "_NAMELEN, wwpn); */\n\n"
 351         buf += "        return &" + fabric_mod_port + "->" + fabric_mod_port + "_wwn;\n"
 352         buf += "}\n\n"
 353         buf += "static void " + fabric_mod_name + "_drop_" + fabric_mod_port + "(struct se_wwn *wwn)\n"
 354         buf += "{\n"
 355         buf += "        struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = container_of(wwn,\n"
 356         buf += "                                struct " + fabric_mod_name + "_" + fabric_mod_port + ", " + fabric_mod_port + "_wwn);\n"
 357         buf += "        kfree(" + fabric_mod_port + ");\n"
 358         buf += "}\n\n"
 359         buf += "static ssize_t " + fabric_mod_name + "_wwn_show_attr_version(\n"
 360         buf += "        struct target_fabric_configfs *tf,\n"
 361         buf += "        char *page)\n"
 362         buf += "{\n"
 363         buf += "        return sprintf(page, \"" + fabric_mod_name.upper() + " fabric module %s on %s/%s\"\n"
 364         buf += "                \"on \"UTS_RELEASE\"\\n\", " + fabric_mod_name.upper() + "_VERSION, utsname()->sysname,\n"
 365         buf += "                utsname()->machine);\n"
 366         buf += "}\n\n"
 367         buf += "TF_WWN_ATTR_RO(" + fabric_mod_name + ", version);\n\n"
 368         buf += "static struct configfs_attribute *" + fabric_mod_name + "_wwn_attrs[] = {\n"
 369         buf += "        &" + fabric_mod_name + "_wwn_version.attr,\n"
 370         buf += "        NULL,\n"
 371         buf += "};\n\n"
 372
 373         buf += "static struct target_core_fabric_ops " + fabric_mod_name + "_ops = {\n"
 374         buf += "        .get_fabric_name                = " + fabric_mod_name + "_get_fabric_name,\n"
 375         buf += "        .get_fabric_proto_ident         = " + fabric_mod_name + "_get_fabric_proto_ident,\n"
 376         buf += "        .tpg_get_wwn                    = " + fabric_mod_name + "_get_fabric_wwn,\n"
 377         buf += "        .tpg_get_tag                    = " + fabric_mod_name + "_get_tag,\n"
 378         buf += "        .tpg_get_default_depth          = " + fabric_mod_name + "_get_default_depth,\n"
 379         buf += "        .tpg_get_pr_transport_id        = " + fabric_mod_name + "_get_pr_transport_id,\n"
 380         buf += "        .tpg_get_pr_transport_id_len    = " + fabric_mod_name + "_get_pr_transport_id_len,\n"
 381         buf += "        .tpg_parse_pr_out_transport_id  = " + fabric_mod_name + "_parse_pr_out_transport_id,\n"
 382         buf += "        .tpg_check_demo_mode            = " + fabric_mod_name + "_check_false,\n"
 383         buf += "        .tpg_check_demo_mode_cache      = " + fabric_mod_name + "_check_true,\n"
 384         buf += "        .tpg_check_demo_mode_write_protect = " + fabric_mod_name + "_check_true,\n"
 385         buf += "        .tpg_check_prod_mode_write_protect = " + fabric_mod_name + "_check_false,\n"
 386         buf += "        .tpg_alloc_fabric_acl           = " + fabric_mod_name + "_alloc_fabric_acl,\n"
 387         buf += "        .tpg_release_fabric_acl         = " + fabric_mod_name + "_release_fabric_acl,\n"
 388         buf += "        .tpg_get_inst_index             = " + fabric_mod_name + "_tpg_get_inst_index,\n"
 389         buf += "        .release_cmd                    = " + fabric_mod_name + "_release_cmd,\n"
 390         buf += "        .shutdown_session               = " + fabric_mod_name + "_shutdown_session,\n"
 391         buf += "        .close_session                  = " + fabric_mod_name + "_close_session,\n"
 392         buf += "        .stop_session                   = " + fabric_mod_name + "_stop_session,\n"
 393         buf += "        .fall_back_to_erl0              = " + fabric_mod_name + "_reset_nexus,\n"
 394         buf += "        .sess_logged_in                 = " + fabric_mod_name + "_sess_logged_in,\n"
 395         buf += "        .sess_get_index                 = " + fabric_mod_name + "_sess_get_index,\n"
 396         buf += "        .sess_get_initiator_sid         = NULL,\n"
 397         buf += "        .write_pending                  = " + fabric_mod_name + "_write_pending,\n"
 398         buf += "        .write_pending_status           = " + fabric_mod_name + "_write_pending_status,\n"
 399         buf += "        .set_default_node_attributes    = " + fabric_mod_name + "_set_default_node_attrs,\n"
 400         buf += "        .get_task_tag                   = " + fabric_mod_name + "_get_task_tag,\n"
 401         buf += "        .get_cmd_state                  = " + fabric_mod_name + "_get_cmd_state,\n"
 402         buf += "        .queue_data_in                  = " + fabric_mod_name + "_queue_data_in,\n"
 403         buf += "        .queue_status                   = " + fabric_mod_name + "_queue_status,\n"
 404         buf += "        .queue_tm_rsp                   = " + fabric_mod_name + "_queue_tm_rsp,\n"
 405         buf += "        .is_state_remove                = " + fabric_mod_name + "_is_state_remove,\n"
 406         buf += "        /*\n"
 407         buf += "         * Setup function pointers for generic logic in target_core_fabric_configfs.c\n"
 408         buf += "         */\n"
 409         buf += "        .fabric_make_wwn                = " + fabric_mod_name + "_make_" + fabric_mod_port + ",\n"
 410         buf += "        .fabric_drop_wwn                = " + fabric_mod_name + "_drop_" + fabric_mod_port + ",\n"
 411         buf += "        .fabric_make_tpg                = " + fabric_mod_name + "_make_tpg,\n"
 412         buf += "        .fabric_drop_tpg                = " + fabric_mod_name + "_drop_tpg,\n"
 413         buf += "        .fabric_post_link               = NULL,\n"
 414         buf += "        .fabric_pre_unlink              = NULL,\n"
 415         buf += "        .fabric_make_np                 = NULL,\n"
 416         buf += "        .fabric_drop_np                 = NULL,\n"
 417         buf += "        .fabric_make_nodeacl            = " + fabric_mod_name + "_make_nodeacl,\n"
 418         buf += "        .fabric_drop_nodeacl            = " + fabric_mod_name + "_drop_nodeacl,\n"
 419         buf += "};\n\n"
 420
 421         buf += "static int " + fabric_mod_name + "_register_configfs(void)\n"
 422         buf += "{\n"
 423         buf += "        struct target_fabric_configfs *fabric;\n"
 424         buf += "        int ret;\n\n"
 425         buf += "        printk(KERN_INFO \"" + fabric_mod_name.upper() + " fabric module %s on %s/%s\"\n"
 426         buf += "                \" on \"UTS_RELEASE\"\\n\"," + fabric_mod_name.upper() + "_VERSION, utsname()->sysname,\n"
 427         buf += "                utsname()->machine);\n"
 428         buf += "        /*\n"
 429         buf += "         * Register the top level struct config_item_type with TCM core\n"
 430         buf += "         */\n"
 431         buf += "        fabric = target_fabric_configfs_init(THIS_MODULE, \"" + fabric_mod_name[4:] + "\");\n"
 432         buf += "        if (IS_ERR(fabric)) {\n"
 433         buf += "                printk(KERN_ERR \"target_fabric_configfs_init() failed\\n\");\n"
 434         buf += "                return PTR_ERR(fabric);\n"
 435         buf += "        }\n"
 436         buf += "        /*\n"
 437         buf += "         * Setup fabric->tf_ops from our local " + fabric_mod_name + "_ops\n"
 438         buf += "         */\n"
 439         buf += "        fabric->tf_ops = " + fabric_mod_name + "_ops;\n"
 440         buf += "        /*\n"
 441         buf += "         * Setup default attribute lists for various fabric->tf_cit_tmpl\n"
 442         buf += "         */\n"
 443         buf += "        fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = " + fabric_mod_name + "_wwn_attrs;\n"
 444         buf += "        fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = NULL;\n"
 445         buf += "        fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL;\n"
 446         buf += "        fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL;\n"
 447         buf += "        fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL;\n"
 448         buf += "        fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL;\n"
 449         buf += "        fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;\n"
 450         buf += "        fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL;\n"
 451         buf += "        fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL;\n"
 452         buf += "        /*\n"
 453         buf += "         * Register the fabric for use within TCM\n"
 454         buf += "         */\n"
 455         buf += "        ret = target_fabric_configfs_register(fabric);\n"
 456         buf += "        if (ret < 0) {\n"
 457         buf += "                printk(KERN_ERR \"target_fabric_configfs_register() failed\"\n"
 458         buf += "                                \" for " + fabric_mod_name.upper() + "\\n\");\n"
 459         buf += "                return ret;\n"
 460         buf += "        }\n"
 461         buf += "        /*\n"
 462         buf += "         * Setup our local pointer to *fabric\n"
 463         buf += "         */\n"
 464         buf += "        " + fabric_mod_name + "_fabric_configfs = fabric;\n"
 465         buf += "        printk(KERN_INFO \"" +  fabric_mod_name.upper() + "[0] - Set fabric -> " + fabric_mod_name + "_fabric_configfs\\n\");\n"
 466         buf += "        return 0;\n"
 467         buf += "};\n\n"
 468         buf += "static void __exit " + fabric_mod_name + "_deregister_configfs(void)\n"
 469         buf += "{\n"
 470         buf += "        if (!" + fabric_mod_name + "_fabric_configfs)\n"
 471         buf += "                return;\n\n"
 472         buf += "        target_fabric_configfs_deregister(" + fabric_mod_name + "_fabric_configfs);\n"
 473         buf += "        " + fabric_mod_name + "_fabric_configfs = NULL;\n"
 474         buf += "        printk(KERN_INFO \"" +  fabric_mod_name.upper() + "[0] - Cleared " + fabric_mod_name + "_fabric_configfs\\n\");\n"
 475         buf += "};\n\n"
 476
 477         buf += "static int __init " + fabric_mod_name + "_init(void)\n"
 478         buf += "{\n"
 479         buf += "        int ret;\n\n"
 480         buf += "        ret = " + fabric_mod_name + "_register_configfs();\n"
 481         buf += "        if (ret < 0)\n"
 482         buf += "                return ret;\n\n"
 483         buf += "        return 0;\n"
 484         buf += "};\n\n"
 485         buf += "static void __exit " + fabric_mod_name + "_exit(void)\n"
 486         buf += "{\n"
 487         buf += "        " + fabric_mod_name + "_deregister_configfs();\n"
 488         buf += "};\n\n"
 489
 490         buf += "MODULE_DESCRIPTION(\"" + fabric_mod_name.upper() + " series fabric driver\");\n"
 491         buf += "MODULE_LICENSE(\"GPL\");\n"
 492         buf += "module_init(" + fabric_mod_name + "_init);\n"
 493         buf += "module_exit(" + fabric_mod_name + "_exit);\n"
 494
 495         ret = p.write(buf)
 496         if ret:
 497                 tcm_mod_err("Unable to write f: " + f)
 498
 499         p.close()
 500
 501         return
 502
 503 def tcm_mod_scan_fabric_ops(tcm_dir):
 504
 505         fabric_ops_api = tcm_dir + "include/target/target_core_fabric.h"
 506
 507         print "Using tcm_mod_scan_fabric_ops: " + fabric_ops_api
 508         process_fo = 0;
 509
 510         p = open(fabric_ops_api, 'r')
 511
 512         line = p.readline()
 513         while line:
 514                 if process_fo == 0 and re.search('struct target_core_fabric_ops {', line):
 515                         line = p.readline()
 516                         continue
 517
 518                 if process_fo == 0:
 519                         process_fo = 1;
 520                         line = p.readline()
 521                         # Search for function pointer
 522                         if not re.search('\(\*', line):
 523                                 continue
 524
 525                         fabric_ops.append(line.rstrip())
 526                         continue
 527
 528                 line = p.readline()
 529                 # Search for function pointer
 530                 if not re.search('\(\*', line):
 531                         continue
 532
 533                 fabric_ops.append(line.rstrip())
 534
 535         p.close()
 536         return
 537
 538 def tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir_var, fabric_mod_name):
 539         buf = ""
 540         bufi = ""
 541
 542         f = fabric_mod_dir_var + "/" + fabric_mod_name + "_fabric.c"
 543         print "Writing file: " + f
 544
 545         p = open(f, 'w')
 546         if not p:
 547                 tcm_mod_err("Unable to open file: " + f)
 548
 549         fi = fabric_mod_dir_var + "/" + fabric_mod_name + "_fabric.h"
 550         print "Writing file: " + fi
 551
 552         pi = open(fi, 'w')
 553         if not pi:
 554                 tcm_mod_err("Unable to open file: " + fi)
 555
 556         buf = "#include <linux/slab.h>\n"
 557         buf += "#include <linux/kthread.h>\n"
 558         buf += "#include <linux/types.h>\n"
 559         buf += "#include <linux/list.h>\n"
 560         buf += "#include <linux/types.h>\n"
 561         buf += "#include <linux/string.h>\n"
 562         buf += "#include <linux/ctype.h>\n"
 563         buf += "#include <asm/unaligned.h>\n"
 564         buf += "#include <scsi/scsi.h>\n"
 565         buf += "#include <scsi/scsi_host.h>\n"
 566         buf += "#include <scsi/scsi_device.h>\n"
 567         buf += "#include <scsi/scsi_cmnd.h>\n"
 568         buf += "#include <scsi/libfc.h>\n\n"
 569         buf += "#include <target/target_core_base.h>\n"
 570         buf += "#include <target/target_core_fabric.h>\n"
 571         buf += "#include <target/target_core_configfs.h>\n\n"
 572         buf += "#include \"" + fabric_mod_name + "_base.h\"\n"
 573         buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n"
 574
 575         buf += "int " + fabric_mod_name + "_check_true(struct se_portal_group *se_tpg)\n"
 576         buf += "{\n"
 577         buf += "        return 1;\n"
 578         buf += "}\n\n"
 579         bufi += "int " + fabric_mod_name + "_check_true(struct se_portal_group *);\n"
 580
 581         buf += "int " + fabric_mod_name + "_check_false(struct se_portal_group *se_tpg)\n"
 582         buf += "{\n"
 583         buf += "        return 0;\n"
 584         buf += "}\n\n"
 585         bufi += "int " + fabric_mod_name + "_check_false(struct se_portal_group *);\n"
 586
 587         total_fabric_ops = len(fabric_ops)
 588         i = 0
 589
 590         while i < total_fabric_ops:
 591                 fo = fabric_ops[i]
 592                 i += 1
 593 #               print "fabric_ops: " + fo
 594
 595                 if re.search('get_fabric_name', fo):
 596                         buf += "char *" + fabric_mod_name + "_get_fabric_name(void)\n"
 597                         buf += "{\n"
 598                         buf += "        return \"" + fabric_mod_name[4:] + "\";\n"
 599                         buf += "}\n\n"
 600                         bufi += "char *" + fabric_mod_name + "_get_fabric_name(void);\n"
 601                         continue
 602
 603                 if re.search('get_fabric_proto_ident', fo):
 604                         buf += "u8 " + fabric_mod_name + "_get_fabric_proto_ident(struct se_portal_group *se_tpg)\n"
 605                         buf += "{\n"
 606                         buf += "        struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
 607                         buf += "                                struct " + fabric_mod_name + "_tpg, se_tpg);\n"
 608                         buf += "        struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
 609                         buf += "        u8 proto_id;\n\n"
 610                         buf += "        switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
 611                         if proto_ident == "FC":
 612                                 buf += "        case SCSI_PROTOCOL_FCP:\n"
 613                                 buf += "        default:\n"
 614                                 buf += "                proto_id = fc_get_fabric_proto_ident(se_tpg);\n"
 615                                 buf += "                break;\n"
 616                         elif proto_ident == "SAS":
 617                                 buf += "        case SCSI_PROTOCOL_SAS:\n"
 618                                 buf += "        default:\n"
 619                                 buf += "                proto_id = sas_get_fabric_proto_ident(se_tpg);\n"
 620                                 buf += "                break;\n"
 621                         elif proto_ident == "iSCSI":
 622                                 buf += "        case SCSI_PROTOCOL_ISCSI:\n"
 623                                 buf += "        default:\n"
 624                                 buf += "                proto_id = iscsi_get_fabric_proto_ident(se_tpg);\n"
 625                                 buf += "                break;\n"
 626
 627                         buf += "        }\n\n"
 628                         buf += "        return proto_id;\n"
 629                         buf += "}\n\n"
 630                         bufi += "u8 " + fabric_mod_name + "_get_fabric_proto_ident(struct se_portal_group *);\n"
 631
 632                 if re.search('get_wwn', fo):
 633                         buf += "char *" + fabric_mod_name + "_get_fabric_wwn(struct se_portal_group *se_tpg)\n"
 634                         buf += "{\n"
 635                         buf += "        struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
 636                         buf += "                                struct " + fabric_mod_name + "_tpg, se_tpg);\n"
 637                         buf += "        struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n\n"
 638                         buf += "        return &" + fabric_mod_port + "->" + fabric_mod_port + "_name[0];\n"
 639                         buf += "}\n\n"
 640                         bufi += "char *" + fabric_mod_name + "_get_fabric_wwn(struct se_portal_group *);\n"
 641
 642                 if re.search('get_tag', fo):
 643                         buf += "u16 " + fabric_mod_name + "_get_tag(struct se_portal_group *se_tpg)\n"
 644                         buf += "{\n"
 645                         buf += "        struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
 646                         buf += "                                struct " + fabric_mod_name + "_tpg, se_tpg);\n"
 647                         buf += "        return tpg->" + fabric_mod_port + "_tpgt;\n"
 648                         buf += "}\n\n"
 649                         bufi += "u16 " + fabric_mod_name + "_get_tag(struct se_portal_group *);\n"
 650
 651                 if re.search('get_default_depth', fo):
 652                         buf += "u32 " + fabric_mod_name + "_get_default_depth(struct se_portal_group *se_tpg)\n"
 653                         buf += "{\n"
 654                         buf += "        return 1;\n"
 655                         buf += "}\n\n"
 656                         bufi += "u32 " + fabric_mod_name + "_get_default_depth(struct se_portal_group *);\n"
 657
 658                 if re.search('get_pr_transport_id\)\(', fo):
 659                         buf += "u32 " + fabric_mod_name + "_get_pr_transport_id(\n"
 660                         buf += "        struct se_portal_group *se_tpg,\n"
 661                         buf += "        struct se_node_acl *se_nacl,\n"
 662                         buf += "        struct t10_pr_registration *pr_reg,\n"
 663                         buf += "        int *format_code,\n"
 664                         buf += "        unsigned char *buf)\n"
 665                         buf += "{\n"
 666                         buf += "        struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
 667                         buf += "                                struct " + fabric_mod_name + "_tpg, se_tpg);\n"
 668                         buf += "        struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
 669                         buf += "        int ret = 0;\n\n"
 670                         buf += "        switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
 671                         if proto_ident == "FC":
 672                                 buf += "        case SCSI_PROTOCOL_FCP:\n"
 673                                 buf += "        default:\n"
 674                                 buf += "                ret = fc_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
 675                                 buf += "                                        format_code, buf);\n"
 676                                 buf += "                break;\n"
 677                         elif proto_ident == "SAS":
 678                                 buf += "        case SCSI_PROTOCOL_SAS:\n"
 679                                 buf += "        default:\n"
 680                                 buf += "                ret = sas_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
 681                                 buf += "                                        format_code, buf);\n"
 682                                 buf += "                break;\n"
 683                         elif proto_ident == "iSCSI":
 684                                 buf += "        case SCSI_PROTOCOL_ISCSI:\n"
 685                                 buf += "        default:\n"
 686                                 buf += "                ret = iscsi_get_pr_transport_id(se_tpg, se_nacl, pr_reg,\n"
 687                                 buf += "                                        format_code, buf);\n"
 688                                 buf += "                break;\n"
 689
 690                         buf += "        }\n\n"
 691                         buf += "        return ret;\n"
 692                         buf += "}\n\n"
 693                         bufi += "u32 " + fabric_mod_name + "_get_pr_transport_id(struct se_portal_group *,\n"
 694                         bufi += "                       struct se_node_acl *, struct t10_pr_registration *,\n"
 695                         bufi += "                       int *, unsigned char *);\n"
 696
 697                 if re.search('get_pr_transport_id_len\)\(', fo):
 698                         buf += "u32 " + fabric_mod_name + "_get_pr_transport_id_len(\n"
 699                         buf += "        struct se_portal_group *se_tpg,\n"
 700                         buf += "        struct se_node_acl *se_nacl,\n"
 701                         buf += "        struct t10_pr_registration *pr_reg,\n"
 702                         buf += "        int *format_code)\n"
 703                         buf += "{\n"
 704                         buf += "        struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
 705                         buf += "                                struct " + fabric_mod_name + "_tpg, se_tpg);\n"
 706                         buf += "        struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
 707                         buf += "        int ret = 0;\n\n"
 708                         buf += "        switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
 709                         if proto_ident == "FC":
 710                                 buf += "        case SCSI_PROTOCOL_FCP:\n"
 711                                 buf += "        default:\n"
 712                                 buf += "                ret = fc_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
 713                                 buf += "                                        format_code);\n"
 714                                 buf += "                break;\n"
 715                         elif proto_ident == "SAS":
 716                                 buf += "        case SCSI_PROTOCOL_SAS:\n"
 717                                 buf += "        default:\n"
 718                                 buf += "                ret = sas_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
 719                                 buf += "                                        format_code);\n"
 720                                 buf += "                break;\n"
 721                         elif proto_ident == "iSCSI":
 722                                 buf += "        case SCSI_PROTOCOL_ISCSI:\n"
 723                                 buf += "        default:\n"
 724                                 buf += "                ret = iscsi_get_pr_transport_id_len(se_tpg, se_nacl, pr_reg,\n"
 725                                 buf += "                                        format_code);\n"
 726                                 buf += "                break;\n"
 727
 728
 729                         buf += "        }\n\n"
 730                         buf += "        return ret;\n"
 731                         buf += "}\n\n"
 732                         bufi += "u32 " + fabric_mod_name + "_get_pr_transport_id_len(struct se_portal_group *,\n"
 733                         bufi += "                       struct se_node_acl *, struct t10_pr_registration *,\n"
 734                         bufi += "                       int *);\n"
 735
 736                 if re.search('parse_pr_out_transport_id\)\(', fo):
 737                         buf += "char *" + fabric_mod_name + "_parse_pr_out_transport_id(\n"
 738                         buf += "        struct se_portal_group *se_tpg,\n"
 739                         buf += "        const char *buf,\n"
 740                         buf += "        u32 *out_tid_len,\n"
 741                         buf += "        char **port_nexus_ptr)\n"
 742                         buf += "{\n"
 743                         buf += "        struct " + fabric_mod_name + "_tpg *tpg = container_of(se_tpg,\n"
 744                         buf += "                                struct " + fabric_mod_name + "_tpg, se_tpg);\n"
 745                         buf += "        struct " + fabric_mod_name + "_" + fabric_mod_port + " *" + fabric_mod_port + " = tpg->" + fabric_mod_port + ";\n"
 746                         buf += "        char *tid = NULL;\n\n"
 747                         buf += "        switch (" + fabric_mod_port + "->" + fabric_mod_port + "_proto_id) {\n"
 748                         if proto_ident == "FC":
 749                                 buf += "        case SCSI_PROTOCOL_FCP:\n"
 750                                 buf += "        default:\n"
 751                                 buf += "                tid = fc_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
 752                                 buf += "                                        port_nexus_ptr);\n"
 753                         elif proto_ident == "SAS":
 754                                 buf += "        case SCSI_PROTOCOL_SAS:\n"
 755                                 buf += "        default:\n"
 756                                 buf += "                tid = sas_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
 757                                 buf += "                                        port_nexus_ptr);\n"
 758                         elif proto_ident == "iSCSI":
 759                                 buf += "        case SCSI_PROTOCOL_ISCSI:\n"
 760                                 buf += "        default:\n"
 761                                 buf += "                tid = iscsi_parse_pr_out_transport_id(se_tpg, buf, out_tid_len,\n"
 762                                 buf += "                                        port_nexus_ptr);\n"
 763
 764                         buf += "        }\n\n"
 765                         buf += "        return tid;\n"
 766                         buf += "}\n\n"
 767                         bufi += "char *" + fabric_mod_name + "_parse_pr_out_transport_id(struct se_portal_group *,\n"
 768                         bufi += "                       const char *, u32 *, char **);\n"
 769
 770                 if re.search('alloc_fabric_acl\)\(', fo):
 771                         buf += "struct se_node_acl *" + fabric_mod_name + "_alloc_fabric_acl(struct se_portal_group *se_tpg)\n"
 772                         buf += "{\n"
 773                         buf += "        struct " + fabric_mod_name + "_nacl *nacl;\n\n"
 774                         buf += "        nacl = kzalloc(sizeof(struct " + fabric_mod_name + "_nacl), GFP_KERNEL);\n"
 775                         buf += "        if (!nacl) {\n"
 776                         buf += "                printk(KERN_ERR \"Unable to allocate struct " + fabric_mod_name + "_nacl\\n\");\n"
 777                         buf += "                return NULL;\n"
 778                         buf += "        }\n\n"
 779                         buf += "        return &nacl->se_node_acl;\n"
 780                         buf += "}\n\n"
 781                         bufi += "struct se_node_acl *" + fabric_mod_name + "_alloc_fabric_acl(struct se_portal_group *);\n"
 782
 783                 if re.search('release_fabric_acl\)\(', fo):
 784                         buf += "void " + fabric_mod_name + "_release_fabric_acl(\n"
 785                         buf += "        struct se_portal_group *se_tpg,\n"
 786                         buf += "        struct se_node_acl *se_nacl)\n"
 787                         buf += "{\n"
 788                         buf += "        struct " + fabric_mod_name + "_nacl *nacl = container_of(se_nacl,\n"
 789                         buf += "                        struct " + fabric_mod_name + "_nacl, se_node_acl);\n"
 790                         buf += "        kfree(nacl);\n"
 791                         buf += "}\n\n"
 792                         bufi += "void " + fabric_mod_name + "_release_fabric_acl(struct se_portal_group *,\n"
 793                         bufi += "                       struct se_node_acl *);\n"
 794
 795                 if re.search('tpg_get_inst_index\)\(', fo):
 796                         buf += "u32 " + fabric_mod_name + "_tpg_get_inst_index(struct se_portal_group *se_tpg)\n"
 797                         buf += "{\n"
 798                         buf += "        return 1;\n"
 799                         buf += "}\n\n"
 800                         bufi += "u32 " + fabric_mod_name + "_tpg_get_inst_index(struct se_portal_group *);\n"
 801
 802                 if re.search('\*release_cmd\)\(', fo):
 803                         buf += "void " + fabric_mod_name + "_release_cmd(struct se_cmd *se_cmd)\n"
 804                         buf += "{\n"
 805                         buf += "        return;\n"
 806                         buf += "}\n\n"
 807                         bufi += "void " + fabric_mod_name + "_release_cmd(struct se_cmd *);\n"
 808
 809                 if re.search('shutdown_session\)\(', fo):
 810                         buf += "int " + fabric_mod_name + "_shutdown_session(struct se_session *se_sess)\n"
 811                         buf += "{\n"
 812                         buf += "        return 0;\n"
 813                         buf += "}\n\n"
 814                         bufi += "int " + fabric_mod_name + "_shutdown_session(struct se_session *);\n"
 815
 816                 if re.search('close_session\)\(', fo):
 817                         buf += "void " + fabric_mod_name + "_close_session(struct se_session *se_sess)\n"
 818                         buf += "{\n"
 819                         buf += "        return;\n"
 820                         buf += "}\n\n"
 821                         bufi += "void " + fabric_mod_name + "_close_session(struct se_session *);\n"
 822
 823                 if re.search('stop_session\)\(', fo):
 824                         buf += "void " + fabric_mod_name + "_stop_session(struct se_session *se_sess, int sess_sleep , int conn_sleep)\n"
 825                         buf += "{\n"
 826                         buf += "        return;\n"
 827                         buf += "}\n\n"
 828                         bufi += "void " + fabric_mod_name + "_stop_session(struct se_session *, int, int);\n"
 829
 830                 if re.search('fall_back_to_erl0\)\(', fo):
 831                         buf += "void " + fabric_mod_name + "_reset_nexus(struct se_session *se_sess)\n"
 832                         buf += "{\n"
 833                         buf += "        return;\n"
 834                         buf += "}\n\n"
 835                         bufi += "void " + fabric_mod_name + "_reset_nexus(struct se_session *);\n"
 836
 837                 if re.search('sess_logged_in\)\(', fo):
 838                         buf += "int " + fabric_mod_name + "_sess_logged_in(struct se_session *se_sess)\n"
 839                         buf += "{\n"
 840                         buf += "        return 0;\n"
 841                         buf += "}\n\n"
 842                         bufi += "int " + fabric_mod_name + "_sess_logged_in(struct se_session *);\n"
 843
 844                 if re.search('sess_get_index\)\(', fo):
 845                         buf += "u32 " + fabric_mod_name + "_sess_get_index(struct se_session *se_sess)\n"
 846                         buf += "{\n"
 847                         buf += "        return 0;\n"
 848                         buf += "}\n\n"
 849                         bufi += "u32 " + fabric_mod_name + "_sess_get_index(struct se_session *);\n"
 850
 851                 if re.search('write_pending\)\(', fo):
 852                         buf += "int " + fabric_mod_name + "_write_pending(struct se_cmd *se_cmd)\n"
 853                         buf += "{\n"
 854                         buf += "        return 0;\n"
 855                         buf += "}\n\n"
 856                         bufi += "int " + fabric_mod_name + "_write_pending(struct se_cmd *);\n"
 857
 858                 if re.search('write_pending_status\)\(', fo):
 859                         buf += "int " + fabric_mod_name + "_write_pending_status(struct se_cmd *se_cmd)\n"
 860                         buf += "{\n"
 861                         buf += "        return 0;\n"
 862                         buf += "}\n\n"
 863                         bufi += "int " + fabric_mod_name + "_write_pending_status(struct se_cmd *);\n"
 864
 865                 if re.search('set_default_node_attributes\)\(', fo):
 866                         buf += "void " + fabric_mod_name + "_set_default_node_attrs(struct se_node_acl *nacl)\n"
 867                         buf += "{\n"
 868                         buf += "        return;\n"
 869                         buf += "}\n\n"
 870                         bufi += "void " + fabric_mod_name + "_set_default_node_attrs(struct se_node_acl *);\n"
 871
 872                 if re.search('get_task_tag\)\(', fo):
 873                         buf += "u32 " + fabric_mod_name + "_get_task_tag(struct se_cmd *se_cmd)\n"
 874                         buf += "{\n"
 875                         buf += "        return 0;\n"
 876                         buf += "}\n\n"
 877                         bufi += "u32 " + fabric_mod_name + "_get_task_tag(struct se_cmd *);\n"
 878
 879                 if re.search('get_cmd_state\)\(', fo):
 880                         buf += "int " + fabric_mod_name + "_get_cmd_state(struct se_cmd *se_cmd)\n"
 881                         buf += "{\n"
 882                         buf += "        return 0;\n"
 883                         buf += "}\n\n"
 884                         bufi += "int " + fabric_mod_name + "_get_cmd_state(struct se_cmd *);\n"
 885
 886                 if re.search('queue_data_in\)\(', fo):
 887                         buf += "int " + fabric_mod_name + "_queue_data_in(struct se_cmd *se_cmd)\n"
 888                         buf += "{\n"
 889                         buf += "        return 0;\n"
 890                         buf += "}\n\n"
 891                         bufi += "int " + fabric_mod_name + "_queue_data_in(struct se_cmd *);\n"
 892
 893                 if re.search('queue_status\)\(', fo):
 894                         buf += "int " + fabric_mod_name + "_queue_status(struct se_cmd *se_cmd)\n"
 895                         buf += "{\n"
 896                         buf += "        return 0;\n"
 897                         buf += "}\n\n"
 898                         bufi += "int " + fabric_mod_name + "_queue_status(struct se_cmd *);\n"
 899
 900                 if re.search('queue_tm_rsp\)\(', fo):
 901                         buf += "int " + fabric_mod_name + "_queue_tm_rsp(struct se_cmd *se_cmd)\n"
 902                         buf += "{\n"
 903                         buf += "        return 0;\n"
 904                         buf += "}\n\n"
 905                         bufi += "int " + fabric_mod_name + "_queue_tm_rsp(struct se_cmd *);\n"
 906
 907                 if re.search('is_state_remove\)\(', fo):
 908                         buf += "int " + fabric_mod_name + "_is_state_remove(struct se_cmd *se_cmd)\n"
 909                         buf += "{\n"
 910                         buf += "        return 0;\n"
 911                         buf += "}\n\n"
 912                         bufi += "int " + fabric_mod_name + "_is_state_remove(struct se_cmd *);\n"
 913
 914
 915         ret = p.write(buf)
 916         if ret:
 917                 tcm_mod_err("Unable to write f: " + f)
 918
 919         p.close()
 920
 921         ret = pi.write(bufi)
 922         if ret:
 923                 tcm_mod_err("Unable to write fi: " + fi)
 924
 925         pi.close()
 926         return
 927
 928 def tcm_mod_build_kbuild(fabric_mod_dir_var, fabric_mod_name):
 929
 930         buf = ""
 931         f = fabric_mod_dir_var + "/Makefile"
 932         print "Writing file: " + f
 933
 934         p = open(f, 'w')
 935         if not p:
 936                 tcm_mod_err("Unable to open file: " + f)
 937
 938         buf += fabric_mod_name + "-objs                 := " + fabric_mod_name + "_fabric.o \\\n"
 939         buf += "                                           " + fabric_mod_name + "_configfs.o\n"
 940         buf += "obj-$(CONFIG_" + fabric_mod_name.upper() + ")           += " + fabric_mod_name + ".o\n"
 941
 942         ret = p.write(buf)
 943         if ret:
 944                 tcm_mod_err("Unable to write f: " + f)
 945
 946         p.close()
 947         return
 948
 949 def tcm_mod_build_kconfig(fabric_mod_dir_var, fabric_mod_name):
 950
 951         buf = ""
 952         f = fabric_mod_dir_var + "/Kconfig"
 953         print "Writing file: " + f
 954
 955         p = open(f, 'w')
 956         if not p:
 957                 tcm_mod_err("Unable to open file: " + f)
 958
 959         buf = "config " + fabric_mod_name.upper() + "\n"
 960         buf += "        tristate \"" + fabric_mod_name.upper() + " fabric module\"\n"
 961         buf += "        depends on TARGET_CORE && CONFIGFS_FS\n"
 962         buf += "        default n\n"
 963         buf += "        ---help---\n"
 964         buf += "        Say Y here to enable the " + fabric_mod_name.upper() + " fabric module\n"
 965
 966         ret = p.write(buf)
 967         if ret:
 968                 tcm_mod_err("Unable to write f: " + f)
 969
 970         p.close()
 971         return
 972
 973 def tcm_mod_add_kbuild(tcm_dir, fabric_mod_name):
 974         buf = "obj-$(CONFIG_" + fabric_mod_name.upper() + ")    += " + fabric_mod_name.lower() + "/\n"
 975         kbuild = tcm_dir + "/drivers/target/Makefile"
 976
 977         f = open(kbuild, 'a')
 978         f.write(buf)
 979         f.close()
 980         return
 981
 982 def tcm_mod_add_kconfig(tcm_dir, fabric_mod_name):
 983         buf = "source \"drivers/target/" + fabric_mod_name.lower() + "/Kconfig\"\n"
 984         kconfig = tcm_dir + "/drivers/target/Kconfig"
 985
 986         f = open(kconfig, 'a')
 987         f.write(buf)
 988         f.close()
 989         return
 990
 991 def main(modname, proto_ident):
 992 #       proto_ident = "FC"
 993 #       proto_ident = "SAS"
 994 #       proto_ident = "iSCSI"
 995
 996         tcm_dir = os.getcwd();
 997         tcm_dir += "/../../"
 998         print "tcm_dir: " + tcm_dir
 999         fabric_mod_name = modname
1000         fabric_mod_dir = tcm_dir + "drivers/target/" + fabric_mod_name
1001         print "Set fabric_mod_name: " + fabric_mod_name
1002         print "Set fabric_mod_dir: " + fabric_mod_dir
1003         print "Using proto_ident: " + proto_ident
1004
1005         if proto_ident != "FC" and proto_ident != "SAS" and proto_ident != "iSCSI":
1006                 print "Unsupported proto_ident: " + proto_ident
1007                 sys.exit(1)
1008
1009         ret = tcm_mod_create_module_subdir(fabric_mod_dir)
1010         if ret:
1011                 print "tcm_mod_create_module_subdir() failed because module already exists!"
1012                 sys.exit(1)
1013
1014         tcm_mod_build_base_includes(proto_ident, fabric_mod_dir, fabric_mod_name)
1015         tcm_mod_scan_fabric_ops(tcm_dir)
1016         tcm_mod_dump_fabric_ops(proto_ident, fabric_mod_dir, fabric_mod_name)
1017         tcm_mod_build_configfs(proto_ident, fabric_mod_dir, fabric_mod_name)
1018         tcm_mod_build_kbuild(fabric_mod_dir, fabric_mod_name)
1019         tcm_mod_build_kconfig(fabric_mod_dir, fabric_mod_name)
1020
1021         input = raw_input("Would you like to add " + fabric_mod_name + "to drivers/target/Makefile..? [yes,no]: ")
1022         if input == "yes" or input == "y":
1023                 tcm_mod_add_kbuild(tcm_dir, fabric_mod_name)
1024
1025         input = raw_input("Would you like to add " + fabric_mod_name + "to drivers/target/Kconfig..? [yes,no]: ")
1026         if input == "yes" or input == "y":
1027                 tcm_mod_add_kconfig(tcm_dir, fabric_mod_name)
1028
1029         return
1030
1031 parser = optparse.OptionParser()
1032 parser.add_option('-m', '--modulename', help='Module name', dest='modname',
1033                 action='store', nargs=1, type='string')
1034 parser.add_option('-p', '--protoident', help='Protocol Ident', dest='protoident',
1035                 action='store', nargs=1, type='string')
1036
1037 (opts, args) = parser.parse_args()
1038
1039 mandatories = ['modname', 'protoident']
1040 for m in mandatories:
1041         if not opts.__dict__[m]:
1042                 print "mandatory option is missing\n"
1043                 parser.print_help()
1044                 exit(-1)
1045
1046 if __name__ == "__main__":
1047
1048         main(str(opts.modname), opts.protoident)