Adding upstream version 8.4.4.upstream/8.4.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 70 insertions, 0 deletions

diff --git a/isisd/isis_flags.h b/isisd/isis_flags.h
new file mode 100644
index 0000000..b3449e1
--- /dev/null
+++ b/isisd/isis_flags.h
@@ -0,0 +1,70 @@
+/*
+ * IS-IS Rout(e)ing protocol - isis_flags.h
+ *                             Routines for manipulation of SSN and SRM flags
+ *
+ * Copyright (C) 2001,2002   Sampo Saaristo
+ *                           Tampere University of Technology
+ *                           Institute of Communications Engineering
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public Licenseas published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _ZEBRA_ISIS_FLAGS_H
+#define _ZEBRA_ISIS_FLAGS_H
+
+/* The grand plan is to support 1024 circuits so we have 32*32 bit flags
+ * the support will be achived using the newest drafts */
+#define ISIS_MAX_CIRCUITS 32 /* = 1024 */
+
+/*
+ * Flags structure for SSN and SRM flags
+ */
+struct flags {
+	int maxindex;
+	struct list *free_idcs;
+};
+
+void flags_initialize(struct flags *flags);
+long int flags_get_index(struct flags *flags);
+void flags_free_index(struct flags *flags, long int index);
+int flags_any_set(uint32_t *flags);
+
+#define _ISIS_SET_FLAG(F, C)                                                   \
+	{                                                                      \
+		F[(C) >> 5] |= (1 << ((C)&0x1F));                              \
+	}
+#define ISIS_SET_FLAG(F, C) _ISIS_SET_FLAG(F, C->idx)
+
+#define _ISIS_CLEAR_FLAG(F, C)                                                 \
+	{                                                                      \
+		F[(C) >> 5] &= ~(1 << ((C)&0x1F));                             \
+	}
+#define ISIS_CLEAR_FLAG(F, C) _ISIS_CLEAR_FLAG(F, C->idx)
+
+#define _ISIS_CHECK_FLAG(F, C)  (F[(C)>>5] & (1<<((C) & 0x1F)))
+#define ISIS_CHECK_FLAG(F, C) _ISIS_CHECK_FLAG(F, C->idx)
+
+/* sets all u_32int_t flags to 1 */
+#define ISIS_FLAGS_SET_ALL(FLAGS)                                              \
+	{                                                                      \
+		memset(FLAGS, 0xFF, ISIS_MAX_CIRCUITS * 4);                    \
+	}
+
+#define ISIS_FLAGS_CLEAR_ALL(FLAGS)                                            \
+	{                                                                      \
+		memset(FLAGS, 0x00, ISIS_MAX_CIRCUITS * 4);                    \
+	}
+
+#endif /* _ZEBRA_ISIS_FLAGS_H */