#include <sys/param.h>
#include <sys/capsicum.h>
#include <sys/callout.h>
#include <sys/cnv.h>
#include <sys/ioctl.h>
#include <sys/linker.h>
#include <sys/module.h>
#include <sys/queue.h>
#include <sys/sbuf.h>
#include <sys/stat.h>
#include <assert.h>
#include <bsdxml.h>
#include <capsicum_helpers.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_message.h>
#include <cam/ctl/ctl.h>
#include <cam/ctl/ctl_io.h>
#include <cam/ctl/ctl_backend.h>
#include <cam/ctl/ctl_ioctl.h>
#include <cam/ctl/ctl_util.h>
#include <cam/ctl/ctl_scsi_all.h>
#include "ctld.hh"
#ifdef ICL_KERNEL_PROXY
#include <netdb.h>
#endif
#define NVLIST_BUFSIZE 1024
int ctl_fd = 0;
void
kernel_init(void)
{
int retval, saved_errno;
ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR);
if (ctl_fd < 0 && errno == ENOENT) {
saved_errno = errno;
retval = kldload("ctl");
if (retval != -1)
ctl_fd = open(CTL_DEFAULT_DEV, O_RDWR);
else
errno = saved_errno;
}
if (ctl_fd < 0)
log_err(1, "failed to open %s", CTL_DEFAULT_DEV);
#ifdef WANT_ISCSI
else {
saved_errno = errno;
if (modfind("cfiscsi") == -1 && kldload("cfiscsi") == -1)
log_warn("couldn't load cfiscsi");
errno = saved_errno;
}
#endif
}
using attr_list_t = std::list<std::pair<std::string, std::string>>;
struct cctl_lun {
uint64_t lun_id;
std::string backend_type;
uint8_t device_type;
uint64_t size_blocks;
uint32_t blocksize;
std::string serial_number;
std::string device_id;
std::string ctld_name;
attr_list_t attr_list;
};
struct cctl_port {
uint32_t port_id;
std::string port_frontend;
std::string port_name;
int pp;
int vp;
uint16_t portid;
int cfiscsi_state;
std::string cfiscsi_target;
std::string nqn;
uint16_t cfiscsi_portal_group_tag;
std::string ctld_portal_group_name;
std::string ctld_transport_group_name;
attr_list_t attr_list;
};
struct cctl_devlist_data {
std::list<cctl_lun> lun_list;
struct cctl_lun *cur_lun = nullptr;
std::list<cctl_port> port_list;
struct cctl_port *cur_port = nullptr;
u_int level = 0;
struct sbuf *cur_sb[32] = {};
};
static void
cctl_start_element(void *user_data, const char *name, const char **attr)
{
int i;
struct cctl_devlist_data *devlist;
struct cctl_lun *cur_lun;
devlist = (struct cctl_devlist_data *)user_data;
cur_lun = devlist->cur_lun;
devlist->level++;
if (devlist->level >= nitems(devlist->cur_sb))
log_errx(1, "%s: too many nesting levels, %zu max", __func__,
nitems(devlist->cur_sb));
devlist->cur_sb[devlist->level] = sbuf_new_auto();
if (devlist->cur_sb[devlist->level] == NULL)
log_err(1, "%s: unable to allocate sbuf", __func__);
if (strcmp(name, "lun") == 0) {
if (cur_lun != NULL)
log_errx(1, "%s: improper lun element nesting",
__func__);
devlist->lun_list.emplace_back();
cur_lun = &devlist->lun_list.back();
devlist->cur_lun = cur_lun;
for (i = 0; attr[i] != NULL; i += 2) {
if (strcmp(attr[i], "id") == 0) {
cur_lun->lun_id = strtoull(attr[i+1], NULL, 0);
} else {
log_errx(1, "%s: invalid LUN attribute %s = %s",
__func__, attr[i], attr[i+1]);
}
}
}
}
static void
cctl_end_element(void *user_data, const char *name)
{
struct cctl_devlist_data *devlist;
struct cctl_lun *cur_lun;
std::string str;
devlist = (struct cctl_devlist_data *)user_data;
cur_lun = devlist->cur_lun;
if ((cur_lun == NULL)
&& (strcmp(name, "ctllunlist") != 0))
log_errx(1, "%s: cur_lun == NULL! (name = %s)", __func__, name);
if (devlist->cur_sb[devlist->level] == NULL)
log_errx(1, "%s: no valid sbuf at level %d (name %s)", __func__,
devlist->level, name);
sbuf_finish(devlist->cur_sb[devlist->level]);
str = sbuf_data(devlist->cur_sb[devlist->level]);
sbuf_delete(devlist->cur_sb[devlist->level]);
devlist->cur_sb[devlist->level] = NULL;
devlist->level--;
if (strcmp(name, "backend_type") == 0) {
cur_lun->backend_type = std::move(str);
} else if (strcmp(name, "lun_type") == 0) {
if (str.empty())
log_errx(1, "%s: %s missing its argument", __func__, name);
cur_lun->device_type = strtoull(str.c_str(), NULL, 0);
} else if (strcmp(name, "size") == 0) {
if (str.empty())
log_errx(1, "%s: %s missing its argument", __func__, name);
cur_lun->size_blocks = strtoull(str.c_str(), NULL, 0);
} else if (strcmp(name, "blocksize") == 0) {
if (str.empty())
log_errx(1, "%s: %s missing its argument", __func__, name);
cur_lun->blocksize = strtoul(str.c_str(), NULL, 0);
} else if (strcmp(name, "serial_number") == 0) {
cur_lun->serial_number = std::move(str);
} else if (strcmp(name, "device_id") == 0) {
cur_lun->device_id = std::move(str);
} else if (strcmp(name, "ctld_name") == 0) {
cur_lun->ctld_name = std::move(str);
} else if (strcmp(name, "lun") == 0) {
devlist->cur_lun = NULL;
} else if (strcmp(name, "ctllunlist") == 0) {
} else {
cur_lun->attr_list.emplace_back(name, std::move(str));
}
}
static void
cctl_start_pelement(void *user_data, const char *name, const char **attr)
{
int i;
struct cctl_devlist_data *devlist;
struct cctl_port *cur_port;
devlist = (struct cctl_devlist_data *)user_data;
cur_port = devlist->cur_port;
devlist->level++;
if (devlist->level >= nitems(devlist->cur_sb))
log_errx(1, "%s: too many nesting levels, %zu max", __func__,
nitems(devlist->cur_sb));
devlist->cur_sb[devlist->level] = sbuf_new_auto();
if (devlist->cur_sb[devlist->level] == NULL)
log_err(1, "%s: unable to allocate sbuf", __func__);
if (strcmp(name, "targ_port") == 0) {
if (cur_port != NULL)
log_errx(1, "%s: improper port element nesting (%s)",
__func__, name);
devlist->port_list.emplace_back();
cur_port = &devlist->port_list.back();
devlist->cur_port = cur_port;
for (i = 0; attr[i] != NULL; i += 2) {
if (strcmp(attr[i], "id") == 0) {
cur_port->port_id = strtoul(attr[i+1], NULL, 0);
} else {
log_errx(1, "%s: invalid LUN attribute %s = %s",
__func__, attr[i], attr[i+1]);
}
}
}
}
static void
cctl_end_pelement(void *user_data, const char *name)
{
struct cctl_devlist_data *devlist;
struct cctl_port *cur_port;
std::string str;
devlist = (struct cctl_devlist_data *)user_data;
cur_port = devlist->cur_port;
if ((cur_port == NULL)
&& (strcmp(name, "ctlportlist") != 0))
log_errx(1, "%s: cur_port == NULL! (name = %s)", __func__, name);
if (devlist->cur_sb[devlist->level] == NULL)
log_errx(1, "%s: no valid sbuf at level %d (name %s)", __func__,
devlist->level, name);
sbuf_finish(devlist->cur_sb[devlist->level]);
str = sbuf_data(devlist->cur_sb[devlist->level]);
sbuf_delete(devlist->cur_sb[devlist->level]);
devlist->cur_sb[devlist->level] = NULL;
devlist->level--;
if (strcmp(name, "frontend_type") == 0) {
cur_port->port_frontend = std::move(str);
} else if (strcmp(name, "port_name") == 0) {
cur_port->port_name = std::move(str);
} else if (strcmp(name, "physical_port") == 0) {
if (str.empty())
log_errx(1, "%s: %s missing its argument", __func__, name);
cur_port->pp = strtoul(str.c_str(), NULL, 0);
} else if (strcmp(name, "virtual_port") == 0) {
if (str.empty())
log_errx(1, "%s: %s missing its argument", __func__, name);
cur_port->vp = strtoul(str.c_str(), NULL, 0);
} else if (strcmp(name, "cfiscsi_target") == 0) {
cur_port->cfiscsi_target = std::move(str);
} else if (strcmp(name, "cfiscsi_state") == 0) {
if (str.empty())
log_errx(1, "%s: %s missing its argument", __func__, name);
cur_port->cfiscsi_state = strtoul(str.c_str(), NULL, 0);
} else if (strcmp(name, "cfiscsi_portal_group_tag") == 0) {
if (str.empty())
log_errx(1, "%s: %s missing its argument", __func__, name);
cur_port->cfiscsi_portal_group_tag = strtoul(str.c_str(), NULL, 0);
} else if (strcmp(name, "ctld_portal_group_name") == 0) {
cur_port->ctld_portal_group_name = std::move(str);
} else if (strcmp(name, "ctld_transport_group_name") == 0) {
cur_port->ctld_transport_group_name = std::move(str);
} else if (strcmp(name, "nqn") == 0) {
cur_port->nqn = std::move(str);
} else if (strcmp(name, "portid") == 0) {
if (str.empty())
log_errx(1, "%s: %s missing its argument", __func__, name);
cur_port->portid = strtoul(str.c_str(), NULL, 0);
} else if (strcmp(name, "targ_port") == 0) {
devlist->cur_port = NULL;
} else if (strcmp(name, "ctlportlist") == 0) {
} else {
cur_port->attr_list.emplace_back(name, std::move(str));
}
}
static void
cctl_char_handler(void *user_data, const XML_Char *str, int len)
{
struct cctl_devlist_data *devlist;
devlist = (struct cctl_devlist_data *)user_data;
sbuf_bcat(devlist->cur_sb[devlist->level], str, len);
}
static bool
parse_kernel_config(struct cctl_devlist_data &devlist)
{
struct ctl_lun_list list;
XML_Parser parser;
int retval;
std::vector<char> buf(4096);
retry:
bzero(&list, sizeof(list));
list.alloc_len = buf.size();
list.status = CTL_LUN_LIST_NONE;
list.lun_xml = buf.data();
if (ioctl(ctl_fd, CTL_LUN_LIST, &list) == -1) {
log_warn("error issuing CTL_LUN_LIST ioctl");
return (false);
}
if (list.status == CTL_LUN_LIST_ERROR) {
log_warnx("error returned from CTL_LUN_LIST ioctl: %s",
list.error_str);
return (false);
}
if (list.status == CTL_LUN_LIST_NEED_MORE_SPACE) {
buf.resize(buf.size() << 1);
goto retry;
}
parser = XML_ParserCreate(NULL);
if (parser == NULL) {
log_warnx("unable to create XML parser");
return (false);
}
XML_SetUserData(parser, &devlist);
XML_SetElementHandler(parser, cctl_start_element, cctl_end_element);
XML_SetCharacterDataHandler(parser, cctl_char_handler);
retval = XML_Parse(parser, buf.data(), strlen(buf.data()), 1);
XML_ParserFree(parser);
if (retval != 1) {
log_warnx("XML_Parse failed");
return (false);
}
retry_port:
bzero(&list, sizeof(list));
list.alloc_len = buf.size();
list.status = CTL_LUN_LIST_NONE;
list.lun_xml = buf.data();
if (ioctl(ctl_fd, CTL_PORT_LIST, &list) == -1) {
log_warn("error issuing CTL_PORT_LIST ioctl");
return (false);
}
if (list.status == CTL_LUN_LIST_ERROR) {
log_warnx("error returned from CTL_PORT_LIST ioctl: %s",
list.error_str);
return (false);
}
if (list.status == CTL_LUN_LIST_NEED_MORE_SPACE) {
buf.resize(buf.size() << 1);
goto retry_port;
}
parser = XML_ParserCreate(NULL);
if (parser == NULL) {
log_warnx("unable to create XML parser");
return (false);
}
XML_SetUserData(parser, &devlist);
XML_SetElementHandler(parser, cctl_start_pelement, cctl_end_pelement);
XML_SetCharacterDataHandler(parser, cctl_char_handler);
retval = XML_Parse(parser, buf.data(), strlen(buf.data()), 1);
XML_ParserFree(parser);
if (retval != 1) {
log_warnx("XML_Parse failed");
return (false);
}
return (true);
}
void
add_iscsi_port(struct kports &kports, struct conf *conf,
const struct cctl_port &port, std::string &name)
{
if (port.cfiscsi_target.empty()) {
log_debugx("CTL port %u \"%s\" wasn't managed by ctld; ",
port.port_id, name.c_str());
if (!kports.has_port(name)) {
if (!kports.add_port(name, port.port_id)) {
log_warnx("kports::add_port failed");
return;
}
}
return;
}
if (port.cfiscsi_state != 1) {
log_debugx("CTL port %ju is not active (%d); ignoring",
(uintmax_t)port.port_id, port.cfiscsi_state);
return;
}
const char *t_name = port.cfiscsi_target.c_str();
struct target *targ = conf->find_target(t_name);
if (targ == nullptr) {
targ = conf->add_target(t_name);
if (targ == nullptr) {
log_warnx("Failed to add target \"%s\"", t_name);
return;
}
}
if (port.ctld_portal_group_name.empty())
return;
const char *pg_name = port.ctld_portal_group_name.c_str();
struct portal_group *pg = conf->find_portal_group(pg_name);
if (pg == nullptr) {
pg = conf->add_portal_group(pg_name);
if (pg == nullptr) {
log_warnx("Failed to add portal-group \"%s\"", pg_name);
return;
}
}
pg->set_tag(port.cfiscsi_portal_group_tag);
if (!conf->add_port(targ, pg, port.port_id)) {
log_warnx("Failed to add port for target \"%s\" and portal-group \"%s\"",
t_name, pg_name);
}
}
void
add_nvmf_port(struct conf *conf, const struct cctl_port &port,
std::string &name)
{
if (port.nqn.empty() || port.ctld_transport_group_name.empty()) {
log_debugx("CTL port %u \"%s\" wasn't managed by ctld; ",
port.port_id, name.c_str());
return;
}
const char *nqn = port.nqn.c_str();
struct target *targ = conf->find_controller(nqn);
if (targ == nullptr) {
targ = conf->add_controller(nqn);
if (targ == nullptr) {
log_warnx("Failed to add controller \"%s\"", nqn);
return;
}
}
const char *tg_name = port.ctld_transport_group_name.c_str();
struct portal_group *pg = conf->find_transport_group(tg_name);
if (pg == nullptr) {
pg = conf->add_transport_group(tg_name);
if (pg == nullptr) {
log_warnx("Failed to add transport-group \"%s\"",
tg_name);
return;
}
}
pg->set_tag(port.portid);
if (!conf->add_port(targ, pg, port.port_id)) {
log_warnx("Failed to add port for controller \"%s\" and transport-group \"%s\"",
nqn, tg_name);
}
}
conf_up
conf_new_from_kernel(struct kports &kports)
{
struct cctl_devlist_data devlist;
log_debugx("obtaining previously configured CTL luns from the kernel");
if (!parse_kernel_config(devlist))
return {};
conf_up conf = std::make_unique<struct conf>();
for (const auto &port : devlist.port_list) {
if (port.port_frontend == "ha")
continue;
std::string name = port.port_name;
if (port.pp != 0) {
name += "/" + std::to_string(port.pp);
if (port.vp != 0)
name += "/" + std::to_string(port.vp);
}
if (port.port_frontend == "iscsi") {
add_iscsi_port(kports, conf.get(), port, name);
} else if (port.port_frontend == "nvmf") {
add_nvmf_port(conf.get(), port, name);
} else {
add_iscsi_port(kports, conf.get(), port, name);
}
}
for (const auto &lun : devlist.lun_list) {
if (lun.ctld_name.empty()) {
log_debugx("CTL lun %ju wasn't managed by ctld; "
"ignoring", (uintmax_t)lun.lun_id);
continue;
}
const char *l_name = lun.ctld_name.c_str();
struct lun *cl = conf->find_lun(l_name);
if (cl != NULL) {
log_warnx("found CTL lun %ju \"%s\", "
"also backed by CTL lun %d; ignoring",
(uintmax_t)lun.lun_id, l_name,
cl->ctl_lun());
continue;
}
log_debugx("found CTL lun %ju \"%s\"",
(uintmax_t)lun.lun_id, l_name);
cl = conf->add_lun(l_name);
if (cl == NULL) {
log_warnx("lun_new failed");
continue;
}
cl->set_backend(lun.backend_type.c_str());
cl->set_device_type(lun.device_type);
cl->set_blocksize(lun.blocksize);
cl->set_device_id(lun.device_id.c_str());
cl->set_serial(lun.serial_number.c_str());
cl->set_size(lun.size_blocks * lun.blocksize);
cl->set_ctl_lun(lun.lun_id);
for (const auto &pair : lun.attr_list) {
const char *key = pair.first.c_str();
const char *value = pair.second.c_str();
if (pair.first == "file" || pair.first == "dev") {
cl->set_path(value);
continue;
}
if (!cl->add_option(key, value))
log_warnx("unable to add CTL lun option "
"%s for CTL lun %ju \"%s\"",
key, (uintmax_t)lun.lun_id,
cl->name());
}
}
return (conf);
}
bool
lun::kernel_add()
{
struct ctl_lun_req req;
int error;
bzero(&req, sizeof(req));
strlcpy(req.backend, l_backend.c_str(), sizeof(req.backend));
req.reqtype = CTL_LUNREQ_CREATE;
req.reqdata.create.blocksize_bytes = l_blocksize;
if (l_size != 0)
req.reqdata.create.lun_size_bytes = l_size;
if (l_ctl_lun >= 0) {
req.reqdata.create.req_lun_id = l_ctl_lun;
req.reqdata.create.flags |= CTL_LUN_FLAG_ID_REQ;
}
req.reqdata.create.flags |= CTL_LUN_FLAG_DEV_TYPE;
req.reqdata.create.device_type = l_device_type;
if (!l_serial.empty()) {
strncpy((char *)req.reqdata.create.serial_num, l_serial.c_str(),
sizeof(req.reqdata.create.serial_num));
req.reqdata.create.flags |= CTL_LUN_FLAG_SERIAL_NUM;
}
if (!l_device_id.empty()) {
strncpy((char *)req.reqdata.create.device_id,
l_device_id.c_str(), sizeof(req.reqdata.create.device_id));
req.reqdata.create.flags |= CTL_LUN_FLAG_DEVID;
}
freebsd::nvlist_up nvl = options();
req.args = nvlist_pack(nvl.get(), &req.args_len);
if (req.args == NULL) {
log_warn("error packing nvlist");
return (false);
}
error = ioctl(ctl_fd, CTL_LUN_REQ, &req);
free(req.args);
if (error != 0) {
log_warn("error issuing CTL_LUN_REQ ioctl");
return (false);
}
switch (req.status) {
case CTL_LUN_ERROR:
log_warnx("LUN creation error: %s", req.error_str);
return (false);
case CTL_LUN_WARNING:
log_warnx("LUN creation warning: %s", req.error_str);
break;
case CTL_LUN_OK:
break;
default:
log_warnx("unknown LUN creation status: %d",
req.status);
return (false);
}
l_ctl_lun = req.reqdata.create.req_lun_id;
return (true);
}
bool
lun::kernel_modify() const
{
struct ctl_lun_req req;
int error;
bzero(&req, sizeof(req));
strlcpy(req.backend, l_backend.c_str(), sizeof(req.backend));
req.reqtype = CTL_LUNREQ_MODIFY;
req.reqdata.modify.lun_id = l_ctl_lun;
req.reqdata.modify.lun_size_bytes = l_size;
freebsd::nvlist_up nvl = options();
req.args = nvlist_pack(nvl.get(), &req.args_len);
if (req.args == NULL) {
log_warn("error packing nvlist");
return (false);
}
error = ioctl(ctl_fd, CTL_LUN_REQ, &req);
free(req.args);
if (error != 0) {
log_warn("error issuing CTL_LUN_REQ ioctl");
return (false);
}
switch (req.status) {
case CTL_LUN_ERROR:
log_warnx("LUN modification error: %s", req.error_str);
return (false);
case CTL_LUN_WARNING:
log_warnx("LUN modification warning: %s", req.error_str);
break;
case CTL_LUN_OK:
break;
default:
log_warnx("unknown LUN modification status: %d",
req.status);
return (false);
}
return (true);
}
bool
lun::kernel_remove() const
{
struct ctl_lun_req req;
bzero(&req, sizeof(req));
strlcpy(req.backend, l_backend.c_str(), sizeof(req.backend));
req.reqtype = CTL_LUNREQ_RM;
req.reqdata.rm.lun_id = l_ctl_lun;
if (ioctl(ctl_fd, CTL_LUN_REQ, &req) == -1) {
log_warn("error issuing CTL_LUN_REQ ioctl");
return (false);
}
switch (req.status) {
case CTL_LUN_ERROR:
log_warnx("LUN removal error: %s", req.error_str);
return (false);
case CTL_LUN_WARNING:
log_warnx("LUN removal warning: %s", req.error_str);
break;
case CTL_LUN_OK:
break;
default:
log_warnx("unknown LUN removal status: %d", req.status);
return (false);
}
return (true);
}
bool
ctl_create_port(const char *driver, const nvlist_t *nvl, uint32_t *ctl_port)
{
struct ctl_req req;
char result_buf[NVLIST_BUFSIZE];
int error;
bzero(&req, sizeof(req));
req.reqtype = CTL_REQ_CREATE;
strlcpy(req.driver, driver, sizeof(req.driver));
req.args = nvlist_pack(nvl, &req.args_len);
if (req.args == NULL) {
log_warn("error packing nvlist");
return (false);
}
req.result = result_buf;
req.result_len = sizeof(result_buf);
error = ioctl(ctl_fd, CTL_PORT_REQ, &req);
free(req.args);
if (error != 0) {
log_warn("error issuing CTL_PORT_REQ ioctl");
return (false);
}
if (req.status == CTL_LUN_ERROR) {
log_warnx("error returned from port creation request: %s",
req.error_str);
return (false);
}
if (req.status != CTL_LUN_OK) {
log_warnx("unknown port creation request status %d",
req.status);
return (false);
}
freebsd::nvlist_up result_nvl(nvlist_unpack(result_buf, req.result_len,
0));
if (result_nvl == NULL) {
log_warnx("error unpacking result nvlist");
return (false);
}
*ctl_port = nvlist_get_number(result_nvl.get(), "port_id");
return (true);
}
bool
ioctl_port::kernel_create_port()
{
freebsd::nvlist_up nvl(nvlist_create(0));
nvlist_add_stringf(nvl.get(), "pp", "%d", p_ioctl_pp);
nvlist_add_stringf(nvl.get(), "vp", "%d", p_ioctl_vp);
return (ctl_create_port("ioctl", nvl.get(), &p_ctl_port));
}
bool
kernel_port::kernel_create_port()
{
struct ctl_port_entry entry;
struct target *targ = p_target;
p_ctl_port = p_pport->ctl_port();
if (strncmp(targ->name(), "naa.", 4) == 0 &&
strlen(targ->name()) == 20) {
bzero(&entry, sizeof(entry));
entry.port_type = CTL_PORT_NONE;
entry.targ_port = p_ctl_port;
entry.flags |= CTL_PORT_WWNN_VALID;
entry.wwnn = strtoull(targ->name() + 4, NULL, 16);
if (ioctl(ctl_fd, CTL_SET_PORT_WWNS, &entry) == -1)
log_warn("CTL_SET_PORT_WWNS ioctl failed");
}
return (true);
}
bool
port::kernel_add()
{
struct ctl_port_entry entry;
struct ctl_lun_map lm;
struct target *targ = p_target;
int error, i;
if (!kernel_create_port())
return (false);
lm.port = p_ctl_port;
lm.plun = UINT32_MAX;
lm.lun = 0;
error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
if (error != 0)
log_warn("CTL_LUN_MAP ioctl failed");
for (i = 0; i < MAX_LUNS; i++) {
if (targ->lun(i) == nullptr)
continue;
lm.port = p_ctl_port;
lm.plun = i;
lm.lun = targ->lun(i)->ctl_lun();
error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
if (error != 0)
log_warn("CTL_LUN_MAP ioctl failed");
}
bzero(&entry, sizeof(entry));
entry.targ_port = p_ctl_port;
error = ioctl(ctl_fd, CTL_ENABLE_PORT, &entry);
if (error != 0) {
log_warn("CTL_ENABLE_PORT ioctl failed");
return (false);
}
return (true);
}
bool
port::kernel_update(const struct port *oport)
{
struct ctl_lun_map lm;
struct target *targ = p_target;
struct target *otarg = oport->p_target;
int error, i;
uint32_t olun;
p_ctl_port = oport->p_ctl_port;
for (i = 0; i < MAX_LUNS; i++) {
lm.port = p_ctl_port;
lm.plun = i;
if (targ->lun(i) == nullptr)
lm.lun = UINT32_MAX;
else
lm.lun = targ->lun(i)->ctl_lun();
if (otarg->lun(i) == nullptr)
olun = UINT32_MAX;
else
olun = otarg->lun(i)->ctl_lun();
if (lm.lun == olun)
continue;
error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
if (error != 0)
log_warn("CTL_LUN_MAP ioctl failed");
}
return (true);
}
bool
ctl_remove_port(const char *driver, nvlist_t *nvl)
{
struct ctl_req req;
int error;
strlcpy(req.driver, driver, sizeof(req.driver));
req.reqtype = CTL_REQ_REMOVE;
req.args = nvlist_pack(nvl, &req.args_len);
if (req.args == NULL) {
log_warn("error packing nvlist");
return (false);
}
error = ioctl(ctl_fd, CTL_PORT_REQ, &req);
free(req.args);
if (error != 0) {
log_warn("error issuing CTL_PORT_REQ ioctl");
return (false);
}
if (req.status == CTL_LUN_ERROR) {
log_warnx("error returned from port removal request: %s",
req.error_str);
return (false);
}
if (req.status != CTL_LUN_OK) {
log_warnx("unknown port removal request status %d", req.status);
return (false);
}
return (true);
}
bool
ioctl_port::kernel_remove_port()
{
freebsd::nvlist_up nvl(nvlist_create(0));
nvlist_add_stringf(nvl.get(), "port_id", "%d", p_ctl_port);
return (ctl_remove_port("ioctl", nvl.get()));
}
bool
kernel_port::kernel_remove_port()
{
struct ctl_lun_map lm;
int error;
lm.port = p_ctl_port;
lm.plun = UINT32_MAX;
lm.lun = UINT32_MAX;
error = ioctl(ctl_fd, CTL_LUN_MAP, &lm);
if (error != 0)
log_warn("CTL_LUN_MAP ioctl failed");
return (true);
}
bool
port::kernel_remove()
{
struct ctl_port_entry entry;
int error;
bzero(&entry, sizeof(entry));
entry.targ_port = p_ctl_port;
error = ioctl(ctl_fd, CTL_DISABLE_PORT, &entry);
if (error != 0) {
log_warn("CTL_DISABLE_PORT ioctl failed");
return (false);
}
return (kernel_remove_port());
}
#ifdef ICL_KERNEL_PROXY
void
kernel_listen(struct addrinfo *ai, bool iser, int portal_id)
{
struct ctl_iscsi req;
bzero(&req, sizeof(req));
req.type = CTL_ISCSI_LISTEN;
req.data.listen.iser = iser;
req.data.listen.domain = ai->ai_family;
req.data.listen.socktype = ai->ai_socktype;
req.data.listen.protocol = ai->ai_protocol;
req.data.listen.addr = ai->ai_addr;
req.data.listen.addrlen = ai->ai_addrlen;
req.data.listen.portal_id = portal_id;
if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1)
log_err(1, "error issuing CTL_ISCSI ioctl");
if (req.status != CTL_ISCSI_OK) {
log_errx(1, "error returned from CTL iSCSI listen: %s",
req.error_str);
}
}
void
kernel_accept(int *connection_id, int *portal_id,
struct sockaddr *client_sa, socklen_t *client_salen)
{
struct ctl_iscsi req;
struct sockaddr_storage ss;
bzero(&req, sizeof(req));
req.type = CTL_ISCSI_ACCEPT;
req.data.accept.initiator_addr = (struct sockaddr *)&ss;
if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1)
log_err(1, "error issuing CTL_ISCSI ioctl");
if (req.status != CTL_ISCSI_OK) {
log_errx(1, "error returned from CTL iSCSI accept: %s",
req.error_str);
}
*connection_id = req.data.accept.connection_id;
*portal_id = req.data.accept.portal_id;
*client_salen = req.data.accept.initiator_addrlen;
memcpy(client_sa, &ss, *client_salen);
}
void
kernel_send(struct pdu *pdu)
{
struct ctl_iscsi req;
bzero(&req, sizeof(req));
req.type = CTL_ISCSI_SEND;
req.data.send.connection_id = pdu->pdu_connection->conn_socket;
req.data.send.bhs = pdu->pdu_bhs;
req.data.send.data_segment_len = pdu->pdu_data_len;
req.data.send.data_segment = pdu->pdu_data;
if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
log_err(1, "error issuing CTL_ISCSI ioctl; "
"dropping connection");
}
if (req.status != CTL_ISCSI_OK) {
log_errx(1, "error returned from CTL iSCSI send: "
"%s; dropping connection", req.error_str);
}
}
void
kernel_receive(struct pdu *pdu)
{
struct connection *conn;
struct ctl_iscsi req;
conn = pdu->pdu_connection;
pdu->pdu_data = malloc(conn->conn_max_recv_data_segment_length);
if (pdu->pdu_data == NULL)
log_err(1, "malloc");
bzero(&req, sizeof(req));
req.type = CTL_ISCSI_RECEIVE;
req.data.receive.connection_id = conn->conn_socket;
req.data.receive.bhs = pdu->pdu_bhs;
req.data.receive.data_segment_len =
conn->conn_max_recv_data_segment_length;
req.data.receive.data_segment = pdu->pdu_data;
if (ioctl(ctl_fd, CTL_ISCSI, &req) == -1) {
log_err(1, "error issuing CTL_ISCSI ioctl; "
"dropping connection");
}
if (req.status != CTL_ISCSI_OK) {
log_errx(1, "error returned from CTL iSCSI receive: "
"%s; dropping connection", req.error_str);
}
}
#endif
void
kernel_capsicate(void)
{
cap_rights_t rights;
const unsigned long cmds[] = { CTL_ISCSI, CTL_NVMF };
cap_rights_init(&rights, CAP_IOCTL);
if (caph_rights_limit(ctl_fd, &rights) < 0)
log_err(1, "cap_rights_limit");
if (caph_ioctls_limit(ctl_fd, cmds, nitems(cmds)) < 0)
log_err(1, "cap_ioctls_limit");
if (caph_enter() < 0)
log_err(1, "cap_enter");
if (cap_sandboxed())
log_debugx("Capsicum capability mode enabled");
else
log_warnx("Capsicum capability mode not supported");
}
