tools: ynl: switch away from MNL_CB_*

Create a local version of the MNL_CB_* parser control values.

Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Link: https://lore.kernel.org/r/20240227223032.1835527-13-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/net/ynl/lib/ynl-priv.h b/tools/net/ynl/lib/ynl-priv.h
index 5c0bd90c116b05cfcab2b188494d711c08b6ed14..a3a9367aacbece609fbeeb50c16cc0b0e8379287 100644 (file)
--- a/tools/net/ynl/lib/ynl-priv.h
+++ b/tools/net/ynl/lib/ynl-priv.h
@@ -29,6 +29,12 @@ enum ynl_policy_type {
        YNL_PT_BITFIELD32,
 };
 
+enum ynl_parse_result {
+       YNL_PARSE_CB_ERROR = -1,
+       YNL_PARSE_CB_STOP = 0,
+       YNL_PARSE_CB_OK = 1,
+};
+
 #define YNL_ARRAY_SIZE(array)  (sizeof(array) ?                        \
                                 sizeof(array) / sizeof(array[0]) : 0)
 

diff --git a/tools/net/ynl/lib/ynl.c b/tools/net/ynl/lib/ynl.c
index 27fb596aa791acd2c94f2d069ef3c33ded1f1352..968ab679b5e3cafaf24a93113ed4683def17249a 100644 (file)
--- a/tools/net/ynl/lib/ynl.c
+++ b/tools/net/ynl/lib/ynl.c
@@ -147,7 +147,7 @@ ynl_ext_ack_check(struct ynl_sock *ys, const struct nlmsghdr *nlh,
 
        if (!(nlh->nlmsg_flags & NLM_F_ACK_TLVS)) {
                yerr_msg(ys, "%s", strerror(ys->err.code));
-               return MNL_CB_OK;
+               return YNL_PARSE_CB_OK;
        }
 
        ynl_attr_for_each(attr, nlh, hlen) {
@@ -166,12 +166,12 @@ ynl_ext_ack_check(struct ynl_sock *ys, const struct nlmsghdr *nlh,
                case NLMSGERR_ATTR_MISS_TYPE:
                case NLMSGERR_ATTR_MISS_NEST:
                        if (len != sizeof(__u32))
-                               return MNL_CB_ERROR;
+                               return YNL_PARSE_CB_ERROR;
                        break;
                case NLMSGERR_ATTR_MSG:
                        str = ynl_attr_get_str(attr);
                        if (str[len - 1])
-                               return MNL_CB_ERROR;
+                               return YNL_PARSE_CB_ERROR;
                        break;
                default:
                        break;
@@ -252,7 +252,7 @@ ynl_ext_ack_check(struct ynl_sock *ys, const struct nlmsghdr *nlh,
        else
                yerr_msg(ys, "%s", strerror(ys->err.code));
 
-       return MNL_CB_OK;
+       return YNL_PARSE_CB_OK;
 }
 
 static int
@@ -272,7 +272,7 @@ ynl_cb_error(const struct nlmsghdr *nlh, struct ynl_parse_arg *yarg)
 
        ynl_ext_ack_check(yarg->ys, nlh, hlen);
 
-       return code ? MNL_CB_ERROR : MNL_CB_STOP;
+       return code ? YNL_PARSE_CB_ERROR : YNL_PARSE_CB_STOP;
 }
 
 static int ynl_cb_done(const struct nlmsghdr *nlh, struct ynl_parse_arg *yarg)
@@ -286,9 +286,9 @@ static int ynl_cb_done(const struct nlmsghdr *nlh, struct ynl_parse_arg *yarg)
 
                ynl_ext_ack_check(yarg->ys, nlh, sizeof(int));
 
-               return MNL_CB_ERROR;
+               return YNL_PARSE_CB_ERROR;
        }
-       return MNL_CB_STOP;
+       return YNL_PARSE_CB_STOP;
 }
 
 /* Attribute validation */
@@ -454,7 +454,7 @@ static int ynl_cb_null(const struct nlmsghdr *nlh, struct ynl_parse_arg *yarg)
        yerr(yarg->ys, YNL_ERROR_UNEXPECT_MSG,
             "Received a message when none were expected");
 
-       return MNL_CB_ERROR;
+       return YNL_PARSE_CB_ERROR;
 }
 
 static int ynl_sock_read_msgs(struct ynl_parse_arg *yarg, ynl_parse_cb_t cb)
@@ -468,30 +468,30 @@ static int ynl_sock_read_msgs(struct ynl_parse_arg *yarg, ynl_parse_cb_t cb)
        if (len < 0)
                return len;
 
-       ret = MNL_CB_STOP;
+       ret = YNL_PARSE_CB_STOP;
        for (rem = len; rem > 0; NLMSG_NEXT(nlh, rem)) {
                nlh = (struct nlmsghdr *)&ys->rx_buf[len - rem];
                if (!NLMSG_OK(nlh, rem)) {
                        yerr(yarg->ys, YNL_ERROR_INV_RESP,
                             "Invalid message or trailing data in the response.");
-                       return MNL_CB_ERROR;
+                       return YNL_PARSE_CB_ERROR;
                }
 
                if (nlh->nlmsg_flags & NLM_F_DUMP_INTR) {
                        /* TODO: handle this better */
                        yerr(yarg->ys, YNL_ERROR_DUMP_INTER,
                             "Dump interrupted / inconsistent, please retry.");
-                       return MNL_CB_ERROR;
+                       return YNL_PARSE_CB_ERROR;
                }
 
                switch (nlh->nlmsg_type) {
                case 0:
                        yerr(yarg->ys, YNL_ERROR_INV_RESP,
                             "Invalid message type in the response.");
-                       return MNL_CB_ERROR;
+                       return YNL_PARSE_CB_ERROR;
                case NLMSG_NOOP:
                case NLMSG_OVERRUN ... NLMSG_MIN_TYPE - 1:
-                       ret = MNL_CB_OK;
+                       ret = YNL_PARSE_CB_OK;
                        break;
                case NLMSG_ERROR:
                        ret = ynl_cb_error(nlh, yarg);
@@ -537,7 +537,7 @@ ynl_get_family_info_mcast(struct ynl_sock *ys, const struct nlattr *mcasts)
        ys->mcast_groups = calloc(ys->n_mcast_groups,
                                  sizeof(*ys->mcast_groups));
        if (!ys->mcast_groups)
-               return MNL_CB_ERROR;
+               return YNL_PARSE_CB_ERROR;
 
        i = 0;
        ynl_attr_for_each_nested(entry, mcasts) {
@@ -566,14 +566,14 @@ ynl_get_family_info_cb(const struct nlmsghdr *nlh, struct ynl_parse_arg *yarg)
        ynl_attr_for_each(attr, nlh, sizeof(struct genlmsghdr)) {
                if (ynl_attr_type(attr) == CTRL_ATTR_MCAST_GROUPS)
                        if (ynl_get_family_info_mcast(ys, attr))
-                               return MNL_CB_ERROR;
+                               return YNL_PARSE_CB_ERROR;
 
                if (ynl_attr_type(attr) != CTRL_ATTR_FAMILY_ID)
                        continue;
 
                if (ynl_attr_data_len(attr) != sizeof(__u16)) {
                        yerr(ys, YNL_ERROR_ATTR_INVALID, "Invalid family ID");
-                       return MNL_CB_ERROR;
+                       return YNL_PARSE_CB_ERROR;
                }
 
                ys->family_id = ynl_attr_get_u16(attr);
@@ -582,9 +582,9 @@ ynl_get_family_info_cb(const struct nlmsghdr *nlh, struct ynl_parse_arg *yarg)
 
        if (!found_id) {
                yerr(ys, YNL_ERROR_ATTR_MISSING, "Family ID missing");
-               return MNL_CB_ERROR;
+               return YNL_PARSE_CB_ERROR;
        }
-       return MNL_CB_OK;
+       return YNL_PARSE_CB_OK;
 }
 
 static int ynl_sock_read_family(struct ynl_sock *ys, const char *family_name)
@@ -741,10 +741,10 @@ static int ynl_ntf_parse(struct ynl_sock *ys, const struct nlmsghdr *nlh)
 
        gehdr = ynl_nlmsg_data(nlh);
        if (gehdr->cmd >= ys->family->ntf_info_size)
-               return MNL_CB_ERROR;
+               return YNL_PARSE_CB_ERROR;
        info = &ys->family->ntf_info[gehdr->cmd];
        if (!info->cb)
-               return MNL_CB_ERROR;
+               return YNL_PARSE_CB_ERROR;
 
        rsp = calloc(1, info->alloc_sz);
        rsp->free = info->free;
@@ -752,7 +752,7 @@ static int ynl_ntf_parse(struct ynl_sock *ys, const struct nlmsghdr *nlh)
        yarg.rsp_policy = info->policy;
 
        ret = info->cb(nlh, &yarg);
-       if (ret <= MNL_CB_STOP)
+       if (ret <= YNL_PARSE_CB_STOP)
                goto err_free;
 
        rsp->family = nlh->nlmsg_type;
@@ -761,11 +761,11 @@ static int ynl_ntf_parse(struct ynl_sock *ys, const struct nlmsghdr *nlh)
        *ys->ntf_last_next = rsp;
        ys->ntf_last_next = &rsp->next;
 
-       return MNL_CB_OK;
+       return YNL_PARSE_CB_OK;
 
 err_free:
        info->free(rsp);
-       return MNL_CB_ERROR;
+       return YNL_PARSE_CB_ERROR;
 }
 
 static int
@@ -812,7 +812,7 @@ void ynl_error_unknown_notification(struct ynl_sock *ys, __u8 cmd)
 int ynl_error_parse(struct ynl_parse_arg *yarg, const char *msg)
 {
        yerr(yarg->ys, YNL_ERROR_INV_RESP, "Error parsing response: %s", msg);
-       return MNL_CB_ERROR;
+       return YNL_PARSE_CB_ERROR;
 }
 
 static int
@@ -841,7 +841,7 @@ int ynl_req_trampoline(const struct nlmsghdr *nlh, struct ynl_parse_arg *yarg)
 
        ret = ynl_check_alien(yrs->yarg.ys, nlh, yrs->rsp_cmd);
        if (ret)
-               return ret < 0 ? MNL_CB_ERROR : MNL_CB_OK;
+               return ret < 0 ? YNL_PARSE_CB_ERROR : YNL_PARSE_CB_OK;
 
        return yrs->cb(nlh, &yrs->yarg);
 }
@@ -872,11 +872,11 @@ ynl_dump_trampoline(const struct nlmsghdr *nlh, struct ynl_parse_arg *data)
 
        ret = ynl_check_alien(ds->yarg.ys, nlh, ds->rsp_cmd);
        if (ret)
-               return ret < 0 ? MNL_CB_ERROR : MNL_CB_OK;
+               return ret < 0 ? YNL_PARSE_CB_ERROR : YNL_PARSE_CB_OK;
 
        obj = calloc(1, ds->alloc_sz);
        if (!obj)
-               return MNL_CB_ERROR;
+               return YNL_PARSE_CB_ERROR;
 
        if (!ds->first)
                ds->first = obj;

diff --git a/tools/net/ynl/ynl-gen-c.py b/tools/net/ynl/ynl-gen-c.py
index 15a9d3b2eed3a82f95006639c8873c9e7aaeab3a..375d5f5e3052535c9561ec8ee803e86e5cc7dec7 100755 (executable)
--- a/tools/net/ynl/ynl-gen-c.py
+++ b/tools/net/ynl/ynl-gen-c.py
@@ -200,7 +200,7 @@ class Type(SpecAttr):
 
         if not self.is_multi_val():
             ri.cw.p("if (ynl_attr_validate(yarg, attr))")
-            ri.cw.p("return MNL_CB_ERROR;")
+            ri.cw.p("return YNL_PARSE_CB_ERROR;")
             if self.presence_type() == 'bit':
                 ri.cw.p(f"{var}->_present.{self.c_name} = 1;")
 
@@ -247,7 +247,7 @@ class TypeUnused(Type):
         return []
 
     def _attr_get(self, ri, var):
-        return ['return MNL_CB_ERROR;'], None, None
+        return ['return YNL_PARSE_CB_ERROR;'], None, None
 
     def _attr_typol(self):
         return '.type = YNL_PT_REJECT, '
@@ -543,7 +543,7 @@ class TypeNest(Type):
 
     def _attr_get(self, ri, var):
         get_lines = [f"if ({self.nested_render_name}_parse(&parg, attr))",
-                     "return MNL_CB_ERROR;"]
+                     "return YNL_PARSE_CB_ERROR;"]
         init_lines = [f"parg.rsp_policy = &{self.nested_render_name}_nest;",
                       f"parg.data = &{var}->{self.c_name};"]
         return get_lines, init_lines, None
@@ -1674,7 +1674,7 @@ def _multi_parse(ri, struct, init_lines, local_vars):
         ri.cw.block_start(line=f"ynl_attr_for_each_nested(attr, attr_{aspec.c_name})")
         ri.cw.p(f"parg.data = &dst->{aspec.c_name}[i];")
         ri.cw.p(f"if ({aspec.nested_render_name}_parse(&parg, attr, ynl_attr_type(attr)))")
-        ri.cw.p('return MNL_CB_ERROR;')
+        ri.cw.p('return YNL_PARSE_CB_ERROR;')
         ri.cw.p('i++;')
         ri.cw.block_end()
         ri.cw.block_end()
@@ -1693,7 +1693,7 @@ def _multi_parse(ri, struct, init_lines, local_vars):
         if 'nested-attributes' in aspec:
             ri.cw.p(f"parg.data = &dst->{aspec.c_name}[i];")
             ri.cw.p(f"if ({aspec.nested_render_name}_parse(&parg, attr))")
-            ri.cw.p('return MNL_CB_ERROR;')
+            ri.cw.p('return YNL_PARSE_CB_ERROR;')
         elif aspec.type in scalars:
             ri.cw.p(f"dst->{aspec.c_name}[i] = ynl_attr_get_{aspec.type}(attr);")
         else:
@@ -1707,7 +1707,7 @@ def _multi_parse(ri, struct, init_lines, local_vars):
     if struct.nested:
         ri.cw.p('return 0;')
     else:
-        ri.cw.p('return MNL_CB_OK;')
+        ri.cw.p('return YNL_PARSE_CB_OK;')
     ri.cw.block_end()
     ri.cw.nl()
 
@@ -1750,7 +1750,7 @@ def parse_rsp_msg(ri, deref=False):
     else:
         # Empty reply
         ri.cw.block_start()
-        ri.cw.p('return MNL_CB_OK;')
+        ri.cw.p('return YNL_PARSE_CB_OK;')
         ri.cw.block_end()
         ri.cw.nl()