lib: Ignore duplicate alist/plist entries in CLI

If duplicate value is entered, the whole plist/alist just dropped.

Before:
```
$ grep prefix-list /etc/frr/frr.conf
ip prefix-list test seq 5 permit 1.1.1.1/32
ip prefix-list test seq 10 permit 1.1.1.1/32
$ systemctl restart frr
$ vtysh -c 'show run | include prefix-list'
$
```

After:
```
$ grep prefix-list /etc/frr/frr.conf
ip prefix-list test seq 5 permit 1.1.1.1/32
ip prefix-list test seq 10 permit 1.1.1.1/32
$ systemctl restart frr
$ vtysh -c 'show run | include prefix-list'
ip prefix-list test seq 5 permit 1.1.1.1/32
```

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>

1 files changed, 122 insertions, 143 deletions

diff --git a/lib/filter_cli.c b/lib/filter_cli.c
index fb40c527dd..9a877a5704 100644
--- a/lib/filter_cli.c
+++ b/lib/filter_cli.c
@@ -151,28 +151,25 @@ DEFPY_YANG(
 	 * Backward compatibility: don't complain about duplicated values,
 	 * just silently accept.
 	 */
-	if (seq_str == NULL) {
-		ada.ada_type = "ipv4";
-		ada.ada_name = name;
-		ada.ada_action = action;
-		if (host_str && mask_str == NULL) {
-			ada.ada_xpath[0] = "./host";
-			ada.ada_value[0] = host_str;
-		} else if (host_str && mask_str) {
-			ada.ada_xpath[0] = "./network/address";
-			ada.ada_value[0] = host_str;
-			ada.ada_xpath[1] = "./network/mask";
-			ada.ada_value[1] = mask_str;
-		} else {
-			ada.ada_xpath[0] = "./source-any";
-			ada.ada_value[0] = "";
-		}
-
-		/* Duplicated entry without sequence, just quit. */
-		if (acl_is_dup(vty->candidate_config->dnode, &ada))
-			return CMD_SUCCESS;
+	ada.ada_type = "ipv4";
+	ada.ada_name = name;
+	ada.ada_action = action;
+	if (host_str && mask_str == NULL) {
+		ada.ada_xpath[0] = "./host";
+		ada.ada_value[0] = host_str;
+	} else if (host_str && mask_str) {
+		ada.ada_xpath[0] = "./network/address";
+		ada.ada_value[0] = host_str;
+		ada.ada_xpath[1] = "./network/mask";
+		ada.ada_value[1] = mask_str;
+	} else {
+		ada.ada_xpath[0] = "./source-any";
+		ada.ada_value[0] = "";
 	}
 
+	if (acl_is_dup(vty->candidate_config->dnode, &ada))
+		return CMD_SUCCESS;
+
 	/*
 	 * Create the access-list first, so we can generate sequence if
 	 * none given (backward compatibility).
@@ -280,49 +277,46 @@ DEFPY_YANG(
 	 * Backward compatibility: don't complain about duplicated values,
 	 * just silently accept.
 	 */
-	if (seq_str == NULL) {
-		ada.ada_type = "ipv4";
-		ada.ada_name = name;
-		ada.ada_action = action;
-		if (src_str && src_mask_str == NULL) {
-			ada.ada_xpath[idx] = "./host";
-			ada.ada_value[idx] = src_str;
-			idx++;
-		} else if (src_str && src_mask_str) {
-			ada.ada_xpath[idx] = "./network/address";
-			ada.ada_value[idx] = src_str;
-			idx++;
-			ada.ada_xpath[idx] = "./network/mask";
-			ada.ada_value[idx] = src_mask_str;
-			idx++;
-		} else {
-			ada.ada_xpath[idx] = "./source-any";
-			ada.ada_value[idx] = "";
-			idx++;
-		}
-
-		if (dst_str && dst_mask_str == NULL) {
-			ada.ada_xpath[idx] = "./destination-host";
-			ada.ada_value[idx] = dst_str;
-			idx++;
-		} else if (dst_str && dst_mask_str) {
-			ada.ada_xpath[idx] = "./destination-network/address";
-			ada.ada_value[idx] = dst_str;
-			idx++;
-			ada.ada_xpath[idx] = "./destination-network/mask";
-			ada.ada_value[idx] = dst_mask_str;
-			idx++;
-		} else {
-			ada.ada_xpath[idx] = "./destination-any";
-			ada.ada_value[idx] = "";
-			idx++;
-		}
+	ada.ada_type = "ipv4";
+	ada.ada_name = name;
+	ada.ada_action = action;
+	if (src_str && src_mask_str == NULL) {
+		ada.ada_xpath[idx] = "./host";
+		ada.ada_value[idx] = src_str;
+		idx++;
+	} else if (src_str && src_mask_str) {
+		ada.ada_xpath[idx] = "./network/address";
+		ada.ada_value[idx] = src_str;
+		idx++;
+		ada.ada_xpath[idx] = "./network/mask";
+		ada.ada_value[idx] = src_mask_str;
+		idx++;
+	} else {
+		ada.ada_xpath[idx] = "./source-any";
+		ada.ada_value[idx] = "";
+		idx++;
+	}
 
-		/* Duplicated entry without sequence, just quit. */
-		if (acl_is_dup(vty->candidate_config->dnode, &ada))
-			return CMD_SUCCESS;
+	if (dst_str && dst_mask_str == NULL) {
+		ada.ada_xpath[idx] = "./destination-host";
+		ada.ada_value[idx] = dst_str;
+		idx++;
+	} else if (dst_str && dst_mask_str) {
+		ada.ada_xpath[idx] = "./destination-network/address";
+		ada.ada_value[idx] = dst_str;
+		idx++;
+		ada.ada_xpath[idx] = "./destination-network/mask";
+		ada.ada_value[idx] = dst_mask_str;
+		idx++;
+	} else {
+		ada.ada_xpath[idx] = "./destination-any";
+		ada.ada_value[idx] = "";
+		idx++;
 	}
 
+	if (acl_is_dup(vty->candidate_config->dnode, &ada))
+		return CMD_SUCCESS;
+
 	/*
 	 * Create the access-list first, so we can generate sequence if
 	 * none given (backward compatibility).
@@ -466,28 +460,25 @@ DEFPY_YANG(
 	 * Backward compatibility: don't complain about duplicated values,
 	 * just silently accept.
 	 */
-	if (seq_str == NULL) {
-		ada.ada_type = "ipv4";
-		ada.ada_name = name;
-		ada.ada_action = action;
-
-		if (prefix_str) {
-			ada.ada_xpath[0] = "./ipv4-prefix";
-			ada.ada_value[0] = prefix_str;
-			if (exact) {
-				ada.ada_xpath[1] = "./ipv4-exact-match";
-				ada.ada_value[1] = "true";
-			}
-		} else {
-			ada.ada_xpath[0] = "./any";
-			ada.ada_value[0] = "";
-		}
+	ada.ada_type = "ipv4";
+	ada.ada_name = name;
+	ada.ada_action = action;
 
-		/* Duplicated entry without sequence, just quit. */
-		if (acl_is_dup(vty->candidate_config->dnode, &ada))
-			return CMD_SUCCESS;
+	if (prefix_str) {
+		ada.ada_xpath[0] = "./ipv4-prefix";
+		ada.ada_value[0] = prefix_str;
+		if (exact) {
+			ada.ada_xpath[1] = "./ipv4-exact-match";
+			ada.ada_value[1] = "true";
+		}
+	} else {
+		ada.ada_xpath[0] = "./any";
+		ada.ada_value[0] = "";
 	}
 
+	if (acl_is_dup(vty->candidate_config->dnode, &ada))
+		return CMD_SUCCESS;
+
 	/*
 	 * Create the access-list first, so we can generate sequence if
 	 * none given (backward compatibility).
@@ -656,28 +647,25 @@ DEFPY_YANG(
 	 * Backward compatibility: don't complain about duplicated values,
 	 * just silently accept.
 	 */
-	if (seq_str == NULL) {
-		ada.ada_type = "ipv6";
-		ada.ada_name = name;
-		ada.ada_action = action;
-
-		if (prefix_str) {
-			ada.ada_xpath[0] = "./ipv6-prefix";
-			ada.ada_value[0] = prefix_str;
-			if (exact) {
-				ada.ada_xpath[1] = "./ipv6-exact-match";
-				ada.ada_value[1] = "true";
-			}
-		} else {
-			ada.ada_xpath[0] = "./any";
-			ada.ada_value[0] = "";
-		}
+	ada.ada_type = "ipv6";
+	ada.ada_name = name;
+	ada.ada_action = action;
 
-		/* Duplicated entry without sequence, just quit. */
-		if (acl_is_dup(vty->candidate_config->dnode, &ada))
-			return CMD_SUCCESS;
+	if (prefix_str) {
+		ada.ada_xpath[0] = "./ipv6-prefix";
+		ada.ada_value[0] = prefix_str;
+		if (exact) {
+			ada.ada_xpath[1] = "./ipv6-exact-match";
+			ada.ada_value[1] = "true";
+		}
+	} else {
+		ada.ada_xpath[0] = "./any";
+		ada.ada_value[0] = "";
 	}
 
+	if (acl_is_dup(vty->candidate_config->dnode, &ada))
+		return CMD_SUCCESS;
+
 	/*
 	 * Create the access-list first, so we can generate sequence if
 	 * none given (backward compatibility).
@@ -850,24 +838,21 @@ DEFPY_YANG(
 	 * Backward compatibility: don't complain about duplicated values,
 	 * just silently accept.
 	 */
-	if (seq_str == NULL) {
-		ada.ada_type = "mac";
-		ada.ada_name = name;
-		ada.ada_action = action;
-
-		if (mac_str) {
-			ada.ada_xpath[0] = "./mac";
-			ada.ada_value[0] = mac_str;
-		} else {
-			ada.ada_xpath[0] = "./any";
-			ada.ada_value[0] = "";
-		}
+	ada.ada_type = "mac";
+	ada.ada_name = name;
+	ada.ada_action = action;
 
-		/* Duplicated entry without sequence, just quit. */
-		if (acl_is_dup(vty->candidate_config->dnode, &ada))
-			return CMD_SUCCESS;
+	if (mac_str) {
+		ada.ada_xpath[0] = "./mac";
+		ada.ada_value[0] = mac_str;
+	} else {
+		ada.ada_xpath[0] = "./any";
+		ada.ada_value[0] = "";
 	}
 
+	if (acl_is_dup(vty->candidate_config->dnode, &ada))
+		return CMD_SUCCESS;
+
 	/*
 	 * Create the access-list first, so we can generate sequence if
 	 * none given (backward compatibility).
@@ -1272,23 +1257,20 @@ DEFPY_YANG(
 	 * Backward compatibility: don't complain about duplicated values,
 	 * just silently accept.
 	 */
-	if (seq_str == NULL) {
-		pda.pda_type = "ipv4";
-		pda.pda_name = name;
-		pda.pda_action = action;
-		if (prefix_str) {
-			prefix_copy(&pda.prefix, prefix);
-			pda.ge = ge;
-			pda.le = le;
-		} else {
-			pda.any = true;
-		}
-
-		/* Duplicated entry without sequence, just quit. */
-		if (plist_is_dup(vty->candidate_config->dnode, &pda))
-			return CMD_SUCCESS;
+	pda.pda_type = "ipv4";
+	pda.pda_name = name;
+	pda.pda_action = action;
+	if (prefix_str) {
+		prefix_copy(&pda.prefix, prefix);
+		pda.ge = ge;
+		pda.le = le;
+	} else {
+		pda.any = true;
 	}
 
+	if (plist_is_dup(vty->candidate_config->dnode, &pda))
+		return CMD_SUCCESS;
+
 	/*
 	 * Create the prefix-list first, so we can generate sequence if
 	 * none given (backward compatibility).
@@ -1476,23 +1458,20 @@ DEFPY_YANG(
 	 * Backward compatibility: don't complain about duplicated values,
 	 * just silently accept.
 	 */
-	if (seq_str == NULL) {
-		pda.pda_type = "ipv6";
-		pda.pda_name = name;
-		pda.pda_action = action;
-		if (prefix_str) {
-			prefix_copy(&pda.prefix, prefix);
-			pda.ge = ge;
-			pda.le = le;
-		} else {
-			pda.any = true;
-		}
-
-		/* Duplicated entry without sequence, just quit. */
-		if (plist_is_dup(vty->candidate_config->dnode, &pda))
-			return CMD_SUCCESS;
+	pda.pda_type = "ipv6";
+	pda.pda_name = name;
+	pda.pda_action = action;
+	if (prefix_str) {
+		prefix_copy(&pda.prefix, prefix);
+		pda.ge = ge;
+		pda.le = le;
+	} else {
+		pda.any = true;
 	}
 
+	if (plist_is_dup(vty->candidate_config->dnode, &pda))
+		return CMD_SUCCESS;
+
 	/*
 	 * Create the prefix-list first, so we can generate sequence if
 	 * none given (backward compatibility).