Rebase on upstream master

.github/workflows/checkpatch_pull.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@main
         with:
           ref: ${{github.event.pull_request.head.sha}}
           fetch-depth: 0

.github/workflows/checkpatch_push.yml

@@ -15,7 +15,7 @@ jobs:
         commit: ${{github.event.commits}}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@main
         with:
           ref: ${{matrix.commit.id}}
           fetch-depth: 2

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
         compiler: [gcc, clang]
         arch: [x86_64]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@main
       - name: Install build-essential
         run: |
           sudo apt-get update

.github/workflows/coverity.yml

@@ -7,10 +7,11 @@ on:
 
 jobs:
   coverity:
+    if: github.repository == 'SCST-project/scst'
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Project
-        uses: actions/checkout@v3
+        uses: actions/checkout@main
 
       - name: Get version
         id: get_version

.github/workflows/mail_notification.yml

@@ -10,14 +10,15 @@ on:
 jobs:
   send_mails:
     name: ${{matrix.commit.message}}
+    if: github.repository == 'SCST-project/scst'
     runs-on: ubuntu-latest
     strategy:
       max-parallel: 1
       matrix:
         commit: ${{github.event.commits}}
     steps:
       - name: Checkout Project
-        uses: actions/checkout@v3
+        uses: actions/checkout@main
         with:
           ref: ${{matrix.commit.id}}
           fetch-depth: 2

.github/workflows/run_regression_tests.yaml

@@ -0,0 +1,66 @@
+name: Regression tests upon push
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  regression_tests:
+    name: ${{matrix.version}}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        version: [
+                  '6.8.7',
+                  '6.7.12',
+                  '6.6.28',
+                  '6.1.87',
+                  '5.15.156',
+                  '5.10.215',
+                  '5.4.274',
+                  '4.19.312',
+                  '4.14.336',
+                  '4.9.337',
+                  '3.18.140',
+                  '3.10.108',
+                  '5.14.0-284.30.1.el9_2^AlmaLinux^9.2',
+                  '4.18.0-513.24.1.el8_9^AlmaLinux^8.9',
+                  '4.18.0-477.13.1.el8_8^AlmaLinux^8.8',
+                  '3.10.0-1160.108.1.el7^CentOS^7.9.2009',
+                  '5.15.0-205.149.5.1.el9uek^UEK^9',
+                  '5.4.17-2136.330.7.1.el8uek^UEK^8',
+                  '5.4.17-2102.206.1.el7uek^UEK^7',
+                  '4.1.12-124.48.6.el6uek^UEK^6'
+                 ]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@main
+
+      - name: Install libelf-dev
+        run: |
+          sudo apt-get install -y libelf-dev
+
+      - name: Install sparse
+        run: |
+          sudo apt-get install sparse
+
+      - name: Install smatch
+        run: |
+          git clone https://github.com/error27/smatch.git
+          cd smatch
+          make -j
+          sudo BINDIR=/bin SHAREDIR=/home/runner/share make install
+
+      - name: Run regression tests
+        run: |
+          err=0
+
+          ./scripts/run-regression-tests -l -q -k -d /tmp/scst-${{matrix.version}} ${{matrix.version}}-nc-ns-nm | tee output.txt
+
+          cat output.txt | grep -A1 "Compiling the patched kernel" | grep -e "FAILED" -e "[^0] errors" > /dev/null 2>&1 && err=1
+
+          rm -f output.txt
+
+          exit $err

.gitignore

@@ -12,8 +12,10 @@
 *.orig
 *.sdtinfo.c
 *.sdtstub.S
+*.out
 *~
 .cache.mk
+.cache/
 .ctf
 .depend_adm
 .depend_d

iscsi-scst/README

@@ -200,6 +200,9 @@ is /sys/kernel/scst_tgt/targets/iscsi. It has the following entries:
    iSCSI-SCST attributes before it starts accepting new connections. 0
    by default.
 
+ - link_local - if set, makes the response to an IPv6 SendTargets include
+   any link local addresses. Default is set.
+
  - open_state - read-only attribute, which allows to see if the user
    space part of iSCSI-SCST connected to the kernel part.
 
@@ -663,6 +666,7 @@ both iSCSI-SCST targets will look like:
 |       |   |       |-- reinstating
 |       |   |       `-- sid
 |       |   `-- tid
+|       |-- link_local
 |       |-- mgmt
 |       |-- open_state
 |       |-- trace_level

iscsi-scst/usr/event.c

@@ -644,6 +644,16 @@ static int handle_e_get_attr_value(int fd, const struct iscsi_kern_event *event)
 			goto out_free;
 		}
 		snprintf(res_str, sizeof(res_str), "%s", isns_entity_target_name);
+	} else if (strcasecmp(ISCSI_LINK_LOCAL_ATTR_NAME, pp) == 0)	{
+		if (target != NULL) {
+			log_error("Not NULL target %s for global attribute %s",
+				target->name, pp);
+			res = -EINVAL;
+			goto out_free;
+		}
+		snprintf(res_str, sizeof(res_str), "%d\n", send_targets_link_local);
+		if (send_targets_link_local != DEFAULT_SEND_TARGETS_LINK_LOCAL)
+			add_key_mark(res_str, sizeof(res_str), 0);
 	} else	{
 		log_error("Unknown attribute %s", pp);
 		res = -EINVAL;
@@ -1067,6 +1077,23 @@ static int handle_e_set_attr_value(int fd, const struct iscsi_kern_event *event)
 	} else if (strcasecmp(ISCSI_ISNS_ENTITY_ATTR_NAME, pp) == 0) {
 		pp = config_sep_string(&p);
 		strlcpy(isns_entity_target_name, pp, sizeof(isns_entity_target_name));
+	} else if (strcasecmp(ISCSI_LINK_LOCAL_ATTR_NAME, pp) == 0) {
+		if (target != NULL) {
+			log_error("Not NULL target %s for global attribute %s",
+				target->name, pp);
+			res = -EINVAL;
+			goto out_free;
+		}
+		pp = config_sep_string(&p);
+		if (strcmp(pp, "1") == 0)
+			send_targets_link_local = 1;
+		else if (strcmp(pp, "0") == 0)
+			send_targets_link_local = 0;
+		else {
+			log_error("Unknown value %s", pp);
+			res = -EINVAL;
+			goto out_free;
+		}
 	} else	{
 		log_error("Unknown attribute %s", pp);
 		res = -EINVAL;

iscsi-scst/usr/iscsi_scstd.c

@@ -961,6 +961,9 @@ int main(int argc, char **argv)
 			S_IRUSR|S_IRGRP|S_IROTH|S_IWUSR, 0);
 	if (err != 0)
 		exit(err);
+	err = kernel_attr_add(NULL, ISCSI_LINK_LOCAL_ATTR_NAME, 0644, 0);
+	if (err != 0)
+		exit(err);
 
 	if ((ipc_fd = iscsi_adm_request_listen()) < 0) {
 		perror("Opening AF_LOCAL socket failed");

iscsi-scst/usr/iscsid.h

@@ -307,6 +307,8 @@ extern void session_free(struct session *session);
 extern struct connection *conn_find(struct session *session, u16 cid);
 
 /* target.c */
+#define DEFAULT_SEND_TARGETS_LINK_LOCAL 1
+extern int send_targets_link_local;
 extern struct __qelem targets_list;
 extern int target_create(const char *name, struct target **out_target);
 extern void target_free(struct target *target);

iscsi-scst/usr/param.c

@@ -279,7 +279,10 @@ int params_val_to_str(const struct iscsi_key *keys, int idx, unsigned int val,
 int params_str_to_val(const struct iscsi_key *keys, int idx, const char *str,
 		      unsigned int *val)
 {
-	if (keys[idx].ops->str_to_val)
+	if (!strcmp(":default:", str)) {
+		*val = keys[idx].local_def;
+		return 0;
+	} else if (keys[idx].ops->str_to_val)
 		return keys[idx].ops->str_to_val(str, val);
 	else
 		return 0;

iscsi-scst/usr/param.h

@@ -26,6 +26,7 @@
 #define ISCSI_TARGET_REDIRECTION_VALUE_TEMP	"temp"
 #define ISCSI_TARGET_REDIRECTION_VALUE_PERM	"perm"
 #define ISCSI_TARGET_ALIAS_ATTR_NAME		"alias"
+#define ISCSI_LINK_LOCAL_ATTR_NAME		"link_local"
 
 struct iscsi_key;
 

iscsi-scst/usr/target.c

@@ -33,6 +33,8 @@
 
 struct __qelem targets_list = LIST_HEAD_INIT(targets_list);
 
+int send_targets_link_local = DEFAULT_SEND_TARGETS_LINK_LOCAL;
+
 const char *iscsi_make_full_initiator_name(int per_portal_acl,
 	const char *initiator_name, const char *target_portal,
 	char *buf, int size)
@@ -204,6 +206,10 @@ static void target_print_addr(struct connection *conn, char *addr, int family)
 {
 	char taddr[NI_MAXHOST + NI_MAXSERV + 5];
 
+	/* Maybe skip IPv6 link local addresses */
+	if (family == AF_INET6 && !send_targets_link_local && (strncasecmp(addr, "fe80:", 5) == 0))
+		return;
+
 	snprintf(taddr, sizeof(taddr),
 		(family == AF_INET) ? "%s:%d,1" : "[%s]:%d,1",
 							addr, server_port);

nightly/bin/nightly

@@ -12,11 +12,7 @@
 
 # Returns the revision number of the source files with date $1.
 get_revision() {
-  if svn info . >/dev/null 2>&1; then
-    svn info -r "{$1}" "${scst_repo}" | sed -n 's/^Revision: //p'
-  else
-    git log --before="$1" | head -n 1 | cut -f2 -d ' '
-  fi
+  git log --before="$1" | head -n 1 | cut -f2 -d ' '
 }
 
 runcmd () {
@@ -54,11 +50,7 @@ usage () {
 #----------------------------------------------------------------------------
 
 scst_rootdir="$(dirname "$(dirname "$(cd "$(dirname "$0")" && echo "$PWD")")")"
-if svn info . >/dev/null 2>&1; then
-  scst_repo="$(svn info "$scst_rootdir" | sed -n -e 's|\+ssh://[^@]*@|://|' -e 's/^URL: //p')"
-else
-  scst_repo="$scst_rootdir"
-fi
+scst_repo="$scst_rootdir"
 sendmail_opts=""
 run_if_unchanged="false"
 
@@ -151,13 +143,10 @@ for logfile in old new ; do
    # Check out and run the tests.
    runcmd ${logfile}							\
           "Checking out SCST source tree"				\
-          "if svn info . >/dev/null 2>&1; then				\
-             svn co -q -r {${date}} ${scst_repo} ${ABT_TMPDIR}/scst;	\
-           else								\
-             ( rmdir ${ABT_TMPDIR}/scst &&				\
-               git clone -q ${scst_repo} ${ABT_TMPDIR}/scst &&		\
-               cd ${ABT_TMPDIR}/scst && git reset --hard ${rev} );	\
-           fi" &&
+          "( rmdir ${ABT_TMPDIR}/scst &&				\
+             git clone -q ${scst_repo} ${ABT_TMPDIR}/scst &&		\
+             cd ${ABT_TMPDIR}/scst && git reset --hard ${rev} );	\
+          " &&
    runcmd ${logfile}							\
           "Running regression tests"					\
           "cd ${ABT_TMPDIR}/scst &&					\

nightly/conf/nightly.conf

@@ -3,36 +3,37 @@
 ABT_DETAILS="x86_64"
 ABT_JOBS=5
 ABT_KERNELS="  \
-6.7            \
-6.6.11-nc      \
+6.8.7          \
+6.7.12-nc      \
+6.6.28-nc      \
 6.5.13-nc      \
 6.4.16-nc      \
 6.3.13-nc      \
 6.2.16-nc      \
-6.1.72-nc      \
+6.1.87-nc      \
 6.0.19-nc      \
 5.19.17-nc     \
 5.18.19-nc     \
 5.17.15-nc     \
 5.16.20-nc     \
-5.15.146-nc    \
+5.15.156-nc    \
 5.14.21-nc     \
 5.13.19-nc     \
 5.12.19-nc     \
 5.11.22-nc     \
-5.10.206-nc    \
+5.10.215-nc    \
 5.9.16-nc      \
 5.8.18-nc      \
 5.7.19-nc      \
 5.6.19-nc      \
 5.5.19-nc      \
-5.4.266-nc     \
+5.4.274-nc     \
 5.3.18-nc      \
 5.2.21-nc      \
 5.1.21-nc      \
 5.0.21-nc      \
 4.20.17-nc     \
-4.19.304-nc    \
+4.19.312-nc    \
 4.18.20-nc     \
 4.17.19-nc     \
 4.16.18-nc     \
@@ -62,11 +63,11 @@ ABT_KERNELS="  \
 3.12.74-nc     \
 3.11.10-nc     \
 3.10.108-nc    \
-5.14.0-362.13.1.el9_3^AlmaLinux^9.3-nc   \
+5.14.0-362.24.1.el9_3^AlmaLinux^9.3-nc   \
 5.14.0-284.30.1.el9_2^AlmaLinux^9.2-nc   \
 5.14.0-162.23.1.el9_1^AlmaLinux^9.1-nc   \
 5.14.0-70.30.1.el9_0^AlmaLinux^9.0-nc    \
-4.18.0-513.5.1.el8_9^AlmaLinux^8.9-nc    \
+4.18.0-513.24.1.el8_9^AlmaLinux^8.9-nc   \
 4.18.0-477.13.1.el8_8^AlmaLinux^8.8-nc   \
 4.18.0-425.19.2.el8_7^AlmaLinux^8.7-nc   \
 4.18.0-372.32.1.el8_6^AlmaLinux^8.6-nc   \
@@ -76,18 +77,18 @@ ABT_KERNELS="  \
 4.18.0-193.28.1.el8_2^CentOS^8.2.2004-nc \
 4.18.0-147.8.1.el8_1^CentOS^8.1.1911-nc  \
 4.18.0-80.11.2.el8_0^CentOS^8.0.1905-nc  \
-3.10.0-1160.105.1.el7^CentOS^7.9.2009-nc \
+3.10.0-1160.108.1.el7^CentOS^7.9.2009-nc \
 3.10.0-1127.19.1.el7^CentOS^7.8.2003-nc  \
 3.10.0-1062.18.1.el7^CentOS^7.7.1908-nc  \
 3.10.0-957.27.2.el7^CentOS^7.6.1810-nc   \
 3.10.0-862.14.4.el7^CentOS^7.5.1804-nc   \
-5.15.0-201.135.6.el9uek^UEK^9-nc         \
-5.15.0-201.135.6.el8uek^UEK^8-nc         \
-5.4.17-2136.326.6.el8uek^UEK^8-nc        \
+5.15.0-205.149.5.1.el9uek^UEK^9-nc       \
+5.15.0-205.149.5.1.el8uek^UEK^8-nc       \
+5.4.17-2136.330.7.1.el8uek^UEK^8-nc      \
 5.4.17-2102.206.1.el8uek^UEK^8-nc        \
 5.4.17-2036.104.5.el8uek^UEK^8-nc        \
 5.4.17-2011.7.4.el8uek^UEK^8-nc          \
-5.4.17-2136.326.6.el7uek^UEK^7-nc        \
+5.4.17-2136.330.7.1.el7uek^UEK^7-nc      \
 5.4.17-2102.206.1.el7uek^UEK^7-nc        \
 5.4.17-2036.104.5.el7uek^UEK^7-nc        \
 5.4.17-2011.7.4.el7uek^UEK^7-nc          \