#ifndef __JSMN_H_ #define __JSMN_H_ /* * JSON type identifier. Basic types are: * o Object * o Array * o String * o Other primitive: number, boolean (true/false) or null */ typedef enum { JSMN_PRIMITIVE = 0, JSMN_OBJECT = 1, JSMN_ARRAY = 2, JSMN_STRING = 3 } jsmntype_t; typedef enum { /* Not enough tokens were provided */ JSMN_ERROR_NOMEM = -1, /* Invalid character inside JSON string */ JSMN_ERROR_INVAL = -2, /* The string is not a full JSON packet, more bytes expected */ JSMN_ERROR_PART = -3, /* Everything was fine */ JSMN_SUCCESS = 0 } jsmnerr_t; /* * JSON token description. * @param type type (object, array, string etc.) * @param start start position in JSON data string * @param end end position in JSON data string */ typedef struct { jsmntype_t type; int start; int end; int size; } jsmntok_t; /* * JSON parser. Contains an array of token blocks available. Also stores * the string being parsed now and current position in that string */ typedef struct { unsigned int pos; /* offset in the JSON string */ int toknext; /* next token to allocate */ int toksuper; /* superior token node, e.g parent object or array */ } jsmn_parser; /* * Create JSON parser over an array of tokens */ void jsmn_init(jsmn_parser *parser); /* * Run JSON parser. It parses a JSON data string into and array of tokens, * each describing a single JSON object. */ jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js, size_t len, jsmntok_t *tokens, unsigned int num_tokens); const char *jsmn_strerror(jsmnerr_t err); #endif /* __JSMN_H_ */ >summaryrefslogtreecommitdiff
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authorDavid S. Miller <davem@davemloft.net>2017-01-30 14:28:22 -0800
committerDavid S. Miller <davem@davemloft.net>2017-01-30 14:28:22 -0800
commit54791b276b4000b307339f269d3bf7db877d536f (patch)
tree1c2616bd373ce5ea28aac2a53e32f5b5834901ce /fs/xfs/xfs_refcount_item.c
parent5d0e7705774dd412a465896d08d59a81a345c1e4 (diff)
parent047487241ff59374fded8c477f21453681f5995c (diff)
Merge branch 'sparc64-non-resumable-user-error-recovery'
Liam R. Howlett says: ==================== sparc64: Recover from userspace non-resumable PIO & MEM errors A non-resumable error from userspace is able to cause a kernel panic or trap loop due to the setup and handling of the queued traps once in the kernel. This patch series addresses both of these issues. The queues are fixed by simply zeroing the memory before use. PIO errors from userspace will result in a SIGBUS being sent to the user process. The MEM errors form userspace will result in a SIGKILL and also cause the offending pages to be claimed so they are no longer used in future tasks. SIGKILL is used to ensure that the process does not try to coredump and result in an attempt to read the memory again from within kernel space. Although there is a HV call to scrub the memory (mem_scrub), there is no easy way to guarantee that the real memory address(es) are not used by other tasks. Clearing the error with mem_scrub would zero the memory and cause the other processes to proceed with bad data. The handling of other non-resumable errors remain unchanged and will cause a panic. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'fs/xfs/xfs_refcount_item.c')