diff options
author | Álvaro Neira Ayuso <alvaroneay@gmail.com> | 2014-01-06 00:51:14 +0100 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2014-01-06 13:20:46 +0100 |
commit | e87d2f9ef8a4a298de5514b30ec2d43d3c90a644 (patch) | |
tree | b1379f466db57d1a8bf8c2e6048f8a3933ef9639 /src/expr/data_reg.c | |
parent | b4a0d19dc1b16a614cdf0aa362f754e734486b38 (diff) |
src: new error reporting approach for XML/JSON parsers
I have added a new structure for reporting some errors in parser
that we can't cover with errno.
In this patch, we have three errors that we can't cover with errno:
NFT_PARSE_EBADINPUT : Bad XML/JSON format in the input
NFT_PARSE_EMISSINGNODE : Missing node in our input
NFT_PARSE_EBADTYPE : Wrong type value in a node
Signed-off-by: Alvaro Neira Ayuso <alvaroneay@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/expr/data_reg.c')
-rw-r--r-- | src/expr/data_reg.c | 54 |
1 files changed, 31 insertions, 23 deletions
diff --git a/src/expr/data_reg.c b/src/expr/data_reg.c index 76231af..e487bc7 100644 --- a/src/expr/data_reg.c +++ b/src/expr/data_reg.c @@ -27,12 +27,13 @@ #include "internal.h" #ifdef JSON_PARSING -static int nft_data_reg_verdict_json_parse(union nft_data_reg *reg, json_t *data) +static int nft_data_reg_verdict_json_parse(union nft_data_reg *reg, json_t *data, + struct nft_parse_err *err) { int verdict; const char *verdict_str; - verdict_str = nft_jansson_parse_str(data, "verdict"); + verdict_str = nft_jansson_parse_str(data, "verdict", err); if (verdict_str == NULL) return -1; @@ -45,9 +46,10 @@ static int nft_data_reg_verdict_json_parse(union nft_data_reg *reg, json_t *data return 0; } -static int nft_data_reg_chain_json_parse(union nft_data_reg *reg, json_t *data) +static int nft_data_reg_chain_json_parse(union nft_data_reg *reg, json_t *data, + struct nft_parse_err *err) { - reg->chain = strdup(nft_jansson_parse_str(data, "chain")); + reg->chain = strdup(nft_jansson_parse_str(data, "chain", err)); if (reg->chain == NULL) { return -1; } @@ -55,19 +57,20 @@ static int nft_data_reg_chain_json_parse(union nft_data_reg *reg, json_t *data) return 0; } -static int nft_data_reg_value_json_parse(union nft_data_reg *reg, json_t *data) +static int nft_data_reg_value_json_parse(union nft_data_reg *reg, json_t *data, + struct nft_parse_err *err) { int i; char node_name[6]; - if (nft_jansson_parse_val(data, "len", NFT_TYPE_U8, ®->len) < 0) + if (nft_jansson_parse_val(data, "len", NFT_TYPE_U8, ®->len, err) < 0) return -1; for (i = 0; i < div_round_up(reg->len, sizeof(uint32_t)); i++) { sprintf(node_name, "data%d", i); if (nft_jansson_str2num(data, node_name, BASE_HEX, - ®->val[i], NFT_TYPE_U32) != 0) + ®->val[i], NFT_TYPE_U32, err) != 0) return -1; } @@ -75,23 +78,24 @@ static int nft_data_reg_value_json_parse(union nft_data_reg *reg, json_t *data) } #endif -int nft_data_reg_json_parse(union nft_data_reg *reg, json_t *data) +int nft_data_reg_json_parse(union nft_data_reg *reg, json_t *data, + struct nft_parse_err *err) { #ifdef JSON_PARSING const char *type; - type = nft_jansson_parse_str(data, "type"); + type = nft_jansson_parse_str(data, "type", err); if (type == NULL) return -1; /* Select what type of parsing is needed */ if (strcmp(type, "value") == 0) { - return nft_data_reg_value_json_parse(reg, data); + return nft_data_reg_value_json_parse(reg, data, err); } else if (strcmp(type, "verdict") == 0) { - return nft_data_reg_verdict_json_parse(reg, data); + return nft_data_reg_verdict_json_parse(reg, data, err); } else if (strcmp(type, "chain") == 0) { - return nft_data_reg_chain_json_parse(reg, data); + return nft_data_reg_chain_json_parse(reg, data, err); } return 0; @@ -103,13 +107,14 @@ int nft_data_reg_json_parse(union nft_data_reg *reg, json_t *data) #ifdef XML_PARSING static int nft_data_reg_verdict_xml_parse(union nft_data_reg *reg, - mxml_node_t *tree) + mxml_node_t *tree, + struct nft_parse_err *err) { int verdict; const char *verdict_str; verdict_str = nft_mxml_str_parse(tree, "verdict", MXML_DESCEND_FIRST, - NFT_XML_MAND); + NFT_XML_MAND, err); if (verdict_str == NULL) return DATA_NONE; @@ -123,12 +128,13 @@ static int nft_data_reg_verdict_xml_parse(union nft_data_reg *reg, } static int nft_data_reg_chain_xml_parse(union nft_data_reg *reg, - mxml_node_t *tree) + mxml_node_t *tree, + struct nft_parse_err *err) { const char *chain; chain = nft_mxml_str_parse(tree, "chain", MXML_DESCEND_FIRST, - NFT_XML_MAND); + NFT_XML_MAND, err); if (chain == NULL) return DATA_NONE; @@ -140,7 +146,8 @@ static int nft_data_reg_chain_xml_parse(union nft_data_reg *reg, } static int nft_data_reg_value_xml_parse(union nft_data_reg *reg, - mxml_node_t *tree) + mxml_node_t *tree, + struct nft_parse_err *err) { int i; char node_name[6]; @@ -156,7 +163,7 @@ static int nft_data_reg_value_xml_parse(union nft_data_reg *reg, */ if (nft_mxml_num_parse(tree, "len", MXML_DESCEND_FIRST, BASE_DEC, - ®->len, NFT_TYPE_U8, NFT_XML_MAND) != 0) + ®->len, NFT_TYPE_U8, NFT_XML_MAND, err) != 0) return DATA_NONE; /* Get and set <dataN> */ @@ -165,7 +172,7 @@ static int nft_data_reg_value_xml_parse(union nft_data_reg *reg, if (nft_mxml_num_parse(tree, node_name, MXML_DESCEND_FIRST, BASE_HEX, ®->val[i], NFT_TYPE_U32, - NFT_XML_MAND) != 0) + NFT_XML_MAND, err) != 0) return DATA_NONE; } @@ -173,7 +180,8 @@ static int nft_data_reg_value_xml_parse(union nft_data_reg *reg, } #endif -int nft_data_reg_xml_parse(union nft_data_reg *reg, mxml_node_t *tree) +int nft_data_reg_xml_parse(union nft_data_reg *reg, mxml_node_t *tree, + struct nft_parse_err *err) { #ifdef XML_PARSING const char *type; @@ -194,11 +202,11 @@ int nft_data_reg_xml_parse(union nft_data_reg *reg, mxml_node_t *tree) } if (strcmp(type, "value") == 0) - return nft_data_reg_value_xml_parse(reg, node); + return nft_data_reg_value_xml_parse(reg, node, err); else if (strcmp(type, "verdict") == 0) - return nft_data_reg_verdict_xml_parse(reg, node); + return nft_data_reg_verdict_xml_parse(reg, node, err); else if (strcmp(type, "chain") == 0) - return nft_data_reg_chain_xml_parse(reg, node); + return nft_data_reg_chain_xml_parse(reg, node, err); return DATA_NONE; #else |